Details of the Researcher

PHOTO

Masanori Hariyama
Section
Graduate School of Information Sciences
Job title
Professor
Degree
  • 博士(情報科学)(東北大学)

  • 修士(情報科学)(東北大学)

Professional Memberships 5

  • Information Processing Society of Japan

  • 計測自動制御学会

  • IEEE

  • 日本ロボット学会

  • 電子情報通信学会

Research Areas 2

  • Informatics / Information theory / Intelligent Integrated Systems

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Measurement engineering / Electronic Meqsurements

Awards 9

  1. 研究奨励賞

    2008/10/24 石田記念財団 情報通信応用フィールドプログラマブルVLSIの開発

  2. Best Research Award

    2008/10/22 Intel Corporation Evaluation of an Heterogeneous Multi-Core Architecture with Dynamically Reconfigurable ALU Arrays

  3. 電子情報通信学会エレクトロニクスソサイエティ活動功労者賞

    2006/03/25 電子情報通信学会

  4. ロジックインメモリアーキテクチャVLSIとその応用展開

    2006/03/06 丸文研究交流財団 ロジックインメモリアーキテクチャVLSIとその応用展開

  5. 研究開発奨励賞

    2005/05/20 情報処理学会 リアルワールド知能集積システム用プロセッサの開発

  6. 学術奨励賞

    2002/03/28 電子情報通信学会 面積・時間積最小化での消費エネルギー最小化のためのハイレベルシンセシス

  7. 研究奨励賞

    2001/03/19 トーキン科学技術振興財団 リアルワールド応用知能集積システム用VLSIプロセッサの先駆的研究

  8. 第4回研究奨励賞

    1998/12/09 財団法人 青葉工業振興会 知能集積システム用VLSIプロセッサの最適設計に関する研究

  9. 優秀論文賞

    1997/06/18 日本工業新聞社 階層的並列化に基づく軌道計画VLSIjプロセッサの構成

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Papers 199

  1. An FPGA Architecture for Text Search Using a Wavelet-Tree-Based Succinct-Data-Structure Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Ono, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 354-359 2105/07/28

  2. 手術ナビゲーションのための超音波画像からの3次元再構成の高精度化に関する研究

    赤川 琢人, 張山 昌論, 下田 貢

    日本コンピュータ外科学会誌 26 (2) 130-130 2024/10

    Publisher: (一社)日本コンピュータ外科学会

    ISSN: 1344-9486

    eISSN: 1884-5770

  3. 手術ナビゲーションのための超音波画像からの3次元再構成の高精度化に関する研究

    赤川 琢人, 張山 昌論, 下田 貢

    日本コンピュータ外科学会誌 26 (2) 130-130 2024/10

    Publisher: (一社)日本コンピュータ外科学会

    ISSN: 1344-9486

    eISSN: 1884-5770

  4. 肝切除におけるナビゲーションの展開 術中ナビゲーションのための3Dプリンターを用いたプローブアタッチメントの作成と術中超音波画像の3D画像構築の試み

    下田 貢, 張山 昌論, 鈴木 修司

    日本外科系連合学会誌 49 (3) 270-270 2024/05

    Publisher: 日本外科系連合学会

    ISSN: 0385-7883

    eISSN: 1882-9112

  5. ベイジアンネットワークを用いた胆嚢亜全摘術施行へのリスク評価

    下田 貢, 張山 昌論, 鈴木 修司

    日本臨床外科学会雑誌 84 (増刊) S231-S231 2023/10

    Publisher: 日本臨床外科学会

    ISSN: 1345-2843

    eISSN: 1882-5133

  6. Optimal Estimation of Resected Regions Considering Hepatic Veins

    Kurusu Hiromi, Hariyama Masanori, Shimoda Mitsugi

    Proceedings of the Japan Joint Automatic Control Conference 66 91-93 2023

    Publisher: The Japan Joint Automatic Control Conference

    DOI: 10.11511/jacc.66.0_91  

  7. 急性胆嚢炎診療の進歩、安全に患者を救うためには 急性胆嚢炎は胆嚢亜全摘術施行へのリスクとなる

    下田 貢, 張山 昌論, 鈴木 修司

    日本外科感染症学会雑誌 19 (1) 143-143 2022/10

    Publisher: (一社)日本外科感染症学会

    ISSN: 1349-5755

    eISSN: 2434-0103

  8. AIを用いた腹腔鏡下胆嚢摘出術困難症例に対するbailout surgeryの術式選択の可能性

    下田 貢, 張山 昌論, 鈴木 修司

    日本外科学会定期学術集会抄録集 122回 SF-5 2022/04

    Publisher: (一社)日本外科学会

  9. FPGA-Accelerated Searchable Encrypted Database Management Systems for Cloud Services

    Mitsuhiro Okada, Takayuki Suzuki, Naoya Nishio, Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    IEEE Transactions on Cloud Computing 10 (2) 1373-1385 2022/04/01

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

    DOI: 10.1109/TCC.2020.2969655  

  10. Temporal and spatial parallel processing of simulated quantum annealing on a multicore CPU

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    The Journal of Supercomputing 78 (6) 8733-8750 2022/04

    Publisher: Springer Science and Business Media {LLC}

    DOI: 10.1007/s11227-021-04242-0  

  11. OpenCL-Based Design of an FPGA Accelerator for H.266/VVC Transform and Quantization

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Hiroe Iwasaki, Daisuke Kobayashi, Yuya Omori, Ken Nakamura, Koyo Nitta, Kimikazu Sano

    2022 IEEE 65TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS 2022) 2022

    DOI: 10.1109/MWSCAS54063.2022.9859281  

  12. A Scalable Emulator for Quantum Fourier Transform Using Multiple-FPGAs With High-Bandwidth-Memory

    Hasitha Muthumala Waidyasooriya, Hiroki Oshiyama, Yuya Kurebayashi, Masanori Hariyama, Masayuki Ohzeki

    IEEE Access 1-1 2022

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

    DOI: 10.1109/ACCESS.2022.3183993  

  13. ナビゲーション手術の現状と今後 肝切除術における超音波3D画像構築とナビゲーションシステムへの応用

    下田 貢, 張山 昌論, 鈴木 修司

    日本臨床外科学会雑誌 82 (増刊) S96-S96 2021/10

    Publisher: 日本臨床外科学会

    ISSN: 1345-2843

    eISSN: 1882-5133

  14. Highly-Parallel FPGA Accelerator for Simulated Quantum Annealing

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    IEEE Transactions on Emerging Topics in Computing 9 (4) 2019-2029 2021/10/01

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

    DOI: 10.1109/TETC.2019.2957177  

  15. Design space exploration for an FPGA-based quantum annealing simulator with interaction-coefficient-generators Peer-reviewed

    Chia-Yin Liu, Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    The Journal of Supercomputing 2021/05/18

    Publisher: Springer Science and Business Media {LLC}

    DOI: 10.1007/s11227-021-03859-5  

  16. 腹腔鏡下胆嚢摘出術困難症例に対するBailout surgery移行判断のAIモデリング

    下田 貢, 張山 昌論, 鈴木 修司

    日本外科学会定期学術集会抄録集 121回 SF-4 2021/04

    Publisher: (一社)日本外科学会

  17. A GPU-Based Quantum Annealing Simulator for Fully-Connected Ising Models Utilizing Spatial and Temporal Parallelism

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    IEEE ACCESS 8 67929-67939 2020

    DOI: 10.1109/ACCESS.2020.2985699  

    ISSN: 2169-3536

  18. Development of new software enabling automatic identification of the optimal anatomical liver resectable region, incorporating preoperative liver function International-journal Peer-reviewed

    Mitsugi Shimoda, Masanori Hariyama, Yukio Oshiro, Shuji Suzuki

    ONCOLOGY LETTERS 18 (6) 6639-6647 2019/12

    DOI: 10.3892/ol.2019.11006  

    ISSN: 1792-1074

    eISSN: 1792-1082

  19. Data-Transfer-Bottleneck-Less Architecture for FPGA-Based Quantum Annealing Simulation

    Chia-Yin Liu, Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    Proceedings - 2019 7th International Symposium on Computing and Networking, CANDAR 2019 164-170 2019/11/01

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/CANDAR.2019.00028  

  20. A memory-bandwidth-efficient word2vec accelerator using OpenCL for FPGA

    Tomoki Shoji, Hasitha Muthumala Waidyasooriya, Taisuke Ono, Masanori Hariyama, Yuichiro Aoki, Yuki Kondoh, Yaoko Nakagawa

    Proceedings - 2019 7th International Symposium on Computing and Networking Workshops, CANDARW 2019 103-108 2019/11/01

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/CANDARW.2019.00026  

  21. OpenCL-based design of an FPGA accelerator for quantum annealing simulation

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Masamichi J. Miyama, Masayuki Ohzeki

    JOURNAL OF SUPERCOMPUTING 75 (8) 5019-5039 2019/08

    DOI: 10.1007/s11227-019-02778-w  

    ISSN: 0920-8542

    eISSN: 1573-0484

  22. FPGA-based acceleration of word2vec using OpenCL

    Taisuke Ono, Tomoki Shoji, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Yuichiro Aoki, Yuki Kondoh, Yaoko Nakagawa

    Proceedings - IEEE International Symposium on Circuits and Systems 2019- 2019

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/ISCAS.2019.8702700  

    ISSN: 0271-4310

  23. Multi-FPGA Accelerator Architecture for Stencil Computation Exploiting Spacial and Temporal Scalability

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    IEEE ACCESS 7 53188-53201 2019

    DOI: 10.1109/ACCESS.2019.2910824  

    ISSN: 2169-3536

  24. Benchmarks for FPGA-Targeted High-Level-Synthesis

    Hasitha Muthumala Waidyasooriya, Yasuaki Iimura, Masanori Hariyama

    2019 SEVENTH INTERNATIONAL SYMPOSIUM ON COMPUTING AND NETWORKING (CANDAR 2019) 232-238 2019

    DOI: 10.1109/CANDAR.2019.00038  

    ISSN: 2379-1888

  25. Accelerator Architecture for Simulated Quantum Annealing Based on Resource-Utilization-Aware Scheduling and its Implementation Using OpenCL

    Hasitha Muthumala Waidyasooriya, Yusuke Araki, Masanori Hariyama

    ISPACS 2018 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems 335-340 2018/11/01

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/ISPACS.2018.8923263  

  26. An FPGA accelerator for PatchMatch multi-view stereo using OpenCL Peer-reviewed

    Shunsuke Tatsumi, Masanori Hariyama, Koichi Ito, Takafumi Aoki

    Journal of Real-Time Image Processing 1-13 2018/02/15

    Publisher: Springer Verlag

    DOI: 10.1007/s11554-017-0745-9  

    ISSN: 1861-8200

  27. Implementation of an FPGA Accelerator for Text Search Using a Wavelet-Tree-Based Succinct-Data-Structure Peer-reviewed

    Taisuke Ono, Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    13th International Conference on High-Performance and Embedded Architectures and Compilers (HiPEAC) 1-12 2018/01/24

  28. A System for Estimating Optimal Resected Liver Regions Considering Practical Surgical Constraints. Peer-reviewed

    Yaya Watanabe, Masanori Hariyama, Mitsugi Shimoda

    2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)(ISPACS) 415-420 2018

    Publisher: IEEE

    DOI: 10.1109/ISPACS.2018.8923304  

  29. Architecture of an FPGA-based heterogeneous system for code-search problems Peer-reviewed

    Yuki Hiradate, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Masaaki Harada

    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 10776 146-155 2018

    Publisher: Springer Verlag

    DOI: 10.1007/978-3-319-69953-0_9  

    ISSN: 1611-3349 0302-9743

    eISSN: 1611-3349

  30. Automatic optimization of OpenCL-based stencil codes for FPGAs Peer-reviewed

    Tsukasa Endo, Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    Studies in Computational Intelligence 721 75-89 2018

    Publisher: Springer Verlag

    DOI: 10.1007/978-3-319-62048-0_6  

    ISSN: 1860-949X

  31. Architecture of an FPGA accelerator for LDA-based inference Peer-reviewed

    Taisuke Ono, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Tsukasa Ishigaki

    Proceedings - 18th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD 2017 357-362 2017/08/29

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/SNPD.2017.8022746  

  32. BEHAVIOR ANALYSIS OF CHILDREN USING A HIGH-ACCURACY GPS SYSTEM Invited

    M. Hariyama, N. Miyamoto, M. Koshiba, H. Watanabe, S. Ito, S. Shimazaki, T. Kubota, M. Senda, S. Taniguchi

    12th International Neuroscience and Biological Psychiatry Regional ISBS Conference 2017/07/25

  33. OpenCL-Based Implementation of an FPGA Accelerator for Molecular Dynamics Simulation Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Kota Kasahara

    Information Engineering Express, International Institute of Applied Informatics 3 (2) 11-23 2017/07

  34. OpenCL-Based FPGA-Platform for Stencil Computation and Its Optimization Methodology Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yasuhiro Takei, Shunsuke Tatsumi, Masanori Hariyama

    IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 28 (5) 1390-1402 2017/05

    DOI: 10.1109/TPDS.2016.2614981  

    ISSN: 1045-9219

    eISSN: 1558-2183

  35. An FPGA accelerator for molecular dynamics simulation using OpenCL Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Kota Kasahara

    International Journal of Networked and Distributed Computing 5 (1) 52-61 2017/01/01

    Publisher: Atlantis Press

    DOI: 10.2991/ijndc.2017.5.1.6  

    ISSN: 2211-7946 2211-7938

  36. OpenCL-Based FPGA Accelerator for 3D FDTD with Periodic and Absorbing Boundary Conditions Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Tsukasa Endo, Masanori Hariyama, Yasuo Ohtera

    International Journal of Reconfigurable Computing 2017 2017

    Publisher: Hindawi Limited

    DOI: 10.1155/2017/6817674  

    ISSN: 1687-7209 1687-7195

  37. Evaluation of an openCL-based FPGA platform for particle filter Peer-reviewed

    Shunsuke Tatsumi, Masanori Hariyama, Norikazu Ikoma

    Journal of Advanced Computational Intelligence and Intelligent Informatics 20 (5) 743-754 2016/09/01

    Publisher: Fuji Technology Press

    DOI: 10.20965/jaciii.2016.p0743  

    ISSN: 1883-8014 1343-0130

  38. Hardware-Acceleration of Short-Read Alignment Based on the Burrows-Wheeler Transform Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama

    IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 27 (5) 1358-1372 2016/05

    DOI: 10.1109/TPDS.2015.2444376  

    ISSN: 1045-9219

    eISSN: 1558-2183

  39. Hardware-Oriented Succinct-Data-Structure for Text Processing Based on Block-Size-Constrained Compression Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Ono, Masanori Hariyama

    International Journal of Computer Information Systems and Industrial Management Applications 8 1-11 2016/01

  40. FPGA-Based Deep-Pipelined Architecture for FDTD Acceleration Using OpenCL Peer-reviewed

    Hasitha Muthumala, Waidyasooriya, Masanori Hariyama

    2016 IEEE/ACIS 15TH INTERNATIONAL CONFERENCE ON COMPUTER AND INFORMATION SCIENCE (ICIS) 108-113 2016

    DOI: 10.1109/ICIS.2016.7550742  

  41. Architecture of an FPGA Accelerator for Molecular Dynamics Simulation Using OpenCL Peer-reviewed

    Hasitha Muthumala, Waidyasooriya, Masanori Hariyama, Kota Kasahara

    2016 IEEE/ACIS 15TH INTERNATIONAL CONFERENCE ON COMPUTER AND INFORMATION SCIENCE (ICIS) 115-119 2016

    DOI: 10.1109/ICIS.2016.7550743  

  42. FPGA Architecture for 3-D FDTD Acceleration Using OpenCL Peer-reviewed

    H. M. Waidyasooriya, M. Hariyama, Y. Ohtera

    2016 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS) 4719-4719 2016

    DOI: 10.1109/PIERS.2016.7735734  

  43. Multiscale, Multiphysics Computational Chemistry Methods Based on Artificial Intelligence Integrated Ultra-Accelerated Quantum Molecular Dynamics for the Application to Automotive Emission Control Peer-reviewed

    Akira Miyamoto, Kenji Inaba, Yukie Ishizawa, Manami Sato, Rei Komuro, Masashi Sato, Ryo Sato, Patrick Bonnaud, Ryuji Miura, Ai Suzuki, Naoto Miyamoto, Nozomu Hatakeyama, Masanori Hariyama

    SAE International Journal of Engines 9 (4) 2434-2441 2016

    Publisher: SAE International

    DOI: 10.4271/2016-32-0067  

    ISSN: 1946-3944 1946-3936

  44. Data-Transfer-Aware Design of an FPGA-Based Heterogeneous Multicore Platform with Custom Accelerators Peer-reviewed

    Yasuhiro Takei, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E98A (12) 2658-2669 2015/12

    DOI: 10.1587/transfun.E98.A.2658  

    ISSN: 1745-1337

    eISSN: 1745-1337

  45. Accurate Liver Extraction Using a Local-Thickness-Based Graph-Cut Approach Peer-reviewed

    Yasuhiro Kobayashi, Masanori Hariyama, Mitsugi Shimoda, Keiichi Kubota

    Proc.International Conference on Image Processing, Computer Vision, and Pattern Recognition(IPCV) 315-318 2015/07/29

  46. Automatic Estimation of Optimal Resected Liver Regions Considering Practical Surgical Conditions Peer-reviewed

    Masanori Hariyama, Takeaki Suzuki, Keisuke Maeda, Mitsugi Shimoda, Keiichi Kubota

    Proc.International Conference on Image Processing, Computer Vision, and Pattern Recognition(IPCV) 356-360 2015/07/29

  47. Evaluation of an FPGA-Based Shortest-Path-Search Accelerator Peer-reviewed

    Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 613-617 2015/07/29

  48. FPGA-Oriented Design of an FDTD Accelerator Based on Overlapped Tiling Peer-reviewed

    Yasuhiro Takei, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 72-77 2015/07/29

  49. OpenCL-based Design of an FPGA Accelerator for Phase-Based Correspondence Matching Peer-reviewed

    Shunsuke Tatsumi, Masanori Hariyama, Mamoru Miura, Koichi Ito, Takafumi Aoki

    Proc. International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 613-617 2015/07/28

  50. Asynchronous Domino Logic Pipeline Design Based on Constructed Critical Data Path Peer-reviewed

    Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama

    IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 23 (4) 619-630 2015/04

    DOI: 10.1109/TVLSI.2014.2314685  

    ISSN: 1063-8210

    eISSN: 1557-9999

  51. Hardware-Oriented Succinct-Data-Structure based on Block-Size-Constrained Compression Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Ono, Masanori Hariyama

    PROCEEDINGS OF THE 2015 SEVENTH INTERNATIONAL CONFERENCE OF SOFT COMPUTING AND PATTERN RECOGNITION (SOCPAR 2015) 136-140 2015

    ISSN: 2381-7542

  52. FDTD Acceleration for Cylindrical Resonator Design Based on the Hybrid of Single and Double Precision Floating-Point Computation Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Yasuhiro Takei, Michitaka Kameyama

    Journal of Computational Engineering 2014 2014/12

    DOI: 10.1155/2014/634269  

  53. An SIMD Architecture for Shortest-Path Search and Its FPGA Implementation Peer-reviewed

    Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 53-56 2014/07/24

  54. Liver Extraction from CT Images Based on Liver Structure Models Peer-reviewed

    Masanori Hariyama, Riichi Tanizawa, Mitsugi Shimoda, Keiichi Kubota, Yasuhiro Kobayashi

    International Conference on Image Processing, Computer Vision, and Pattern Recognition(IPCV) 170-173 2014/07/23

  55. Design of an FPGA-Based FDTD Accelerator Using OpenCL Peer-reviewed

    Yasuhiro Takei, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA) 371-375 2014/07/23

  56. Estimation of Resected Liver Regions Using a Tumor Domination Ratio Peer-reviewed

    Masanori Hariyama, Moe Okada, Mitsugi Shimoda, Keiichi Kubota

    International Conference on Image Processing, Computer Vision, and Pattern Recognition(IPCV) 52-56 2014/07/22

  57. An Asynchronous High-Performance FPGA Based on LEDR/Four-Phase-Dual-Rail Hybrid Architecture Peer-reviewed

    Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    Proc. the 5th International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies (HEART) 111-114 2014/06/10

  58. FPGA-Accelerator for DNA Sequence Alignment Based on an Efficient Data-Dependent Memory Access Scheme Peer-reviewed

    Hasitha Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    Proc. the 5th International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies(HEART) 127-130 2014/06/10

  59. 肝細胞癌手術にオンコロジカルな視点を考慮した自動肝切除領域抽出ソフトの使用経験

    下田 貢, 清水 崇行, 白木 孝之, 張山 昌論, 窪田 敬一

    日本肝胆膵外科学会・学術集会プログラム・抄録集 26回 660-660 2014/06

    Publisher: (一社)日本肝胆膵外科学会

  60. DTD Acceleration for Cylindrical Resonator Design Based on the Hybrid of Single and Double Precision Floating-Point Computation Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Yasuhiro Takei, Michitaka Kameyama

    Journal of Computational Engineering 2014 2014

    DOI: 10.1155/2014/634269  

  61. Efficient Data Transfer Scheme Using Word-Pair-Encoding-Based Compression for Large-Scale Text-Data Processing Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Ono, Masanori Hariyama, Michitaka Kameyama

    2014 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS) 639-642 2014

    DOI: 10.1109/APCCAS.2014.7032862  

  62. Architecture of an Asynchronous FPGA for Handshake-Component-Based Design Peer-reviewed

    Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E96D (8) 1632-1644 2013/08

    DOI: 10.1587/transinf.E96.D.1632  

    ISSN: 0916-8532

  63. Heterogeneous Multicore Platform with Accelerator Templates and Its Implementation on an FPGA with Hard-core CPUs Peer-reviewed

    Yasuhiro Takei, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA) 47-50 2013/07

  64. Reducing Floating-Point Error Based on Residue-Preservation and Its Evaluation on an FPGA Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Hirokazu Takahashi, Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA) 55-58 2013/07

  65. An Area-Efficient Asynchronous FPGA Architecture for Handshake-Component-Based Design Peer-reviewed

    Yoshiya KOMATSU, Masanori HARIYAMA, Michitaka KAMEYAMA

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA), 15-18 2013/07

  66. 肝胆膵外科手術への術前シミュレーションサージェリーの応用 門脈自動追跡ソフトの開発とAiRScouter WD-を用いた術中ナビゲーションシステムの構築

    清水 崇行, 下田 貢, 張山 昌論, 窪田 敬一

    日本肝胆膵外科学会・学術集会プログラム・抄録集 25回 223-223 2013/06

    Publisher: (一社)日本肝胆膵外科学会

  67. A Low-Power FPGA Based on Self-Adaptive Multi-Voltage Control Peer-reviewed

    Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama

    2013 INTERNATIONAL SOC DESIGN CONFERENCE (ISOCC) 166-169 2013

    ISSN: 2163-9612

  68. Flexible Ferroelectric-Capacitor Element for Low Power and Compact Logic-in-Memory Architectures Peer-reviewed

    Shota Ishihara, Noriaki Idobata, Masanori Hariyama, Michitaka Kameyama

    JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING 20 (5-6) 595-623 2013

    ISSN: 1542-3980

  69. Evaluation of an FPGA-Based heterogeneous multicore platform with SIMD/MIMD custom accelerators Peer-reviewed

    Yasuhiro Takei, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E96-A (12) 2576-2586 2013

    Publisher: Institute of Electronics, Information and Communication, Engineers, IEICE

    DOI: 10.1587/transfun.E96.A.2576  

    ISSN: 1745-1337 0916-8508

  70. Implementation of a Custom Hardware-Accelerator for Short-read Mapping Using Burrows-Wheeler Alignment Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) 651-654 2013

    DOI: 10.1109/EMBC.2013.6609584  

    ISSN: 1557-170X

  71. Platform and Mapping Methodology for Heterogeneous Multicore Processors Peer-reviewed

    Masanori HARIYAMA, Hasitha Muthumala WAIDYASOORIYA, Yasuhiro TAKEI, Michitaka KAMEYAMA

    Interdisciplinary Information Sciences 18 (2) 175-184 2012/12

    Publisher: The Editorial Committee of the Interdisciplinary Information Sciences

    DOI: 10.4036/iis.2012.175  

    ISSN: 1340-9050

    More details Close

    Heterogeneous multi-core processors are attracted by various type of applications from low-power media applications to high-performance computing due to their capability of drawing strengths of different cores to improve the overall performance. However, the data transfer bottlenecks between different cores becomes a serious problem. This paper presents two key methodologies to solve the data transfer bottoleneck: memory allocation considering a addressing function constraint and task allocation based on algorithm transformation. Moreover, in order to help to explore accelerator architecture suitable for applications, this paper presents a platform based on FPGAs where circuity is reconfigured by users after fabrication.

  72. Acceleration of Block Matching on a Low-Power Heterogeneous Multi-Core Processor Based on DTU Data-Transfer with Data Re-Allocation Peer-reviewed

    Yoshitaka Hiramatsu, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Toru Nojiri, Kunio Uchiyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E95C (12) 1872-1882 2012/12

    DOI: 10.1587/transele.E95.C.1872  

    ISSN: 0916-8524

    eISSN: 1745-1353

  73. Design of High-Performance Asynchronous Pipeline Using Synchronizing Logic Gates Peer-reviewed

    Zhengfan Xia, Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E95C (8) 1434-1443 2012/08

    DOI: 10.1587/transele.E95.C.1434  

    ISSN: 1745-1353

  74. Architecture of an Asynchronous FPGA for Handshake-Component-Based Design Peer-reviewed

    Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    The International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 133-136 2012/07

  75. Area-Efficient Design of Asynchronous Circuits Based on Balsa Framework for Synchronous FPGAs Peer-reviewed

    Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    The International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 113-118 2012/07

  76. Low-Power Heterogeneous Platform for High Performance Computing and Its Application to 2D-FDTD Computation Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    The International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 147-150 2012/07

  77. Hybrid Single/Double Precision Floating-Point Computation on GPU Accelerators for 2-D FDTD Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA) 1001-1002 2012/07

  78. An Asynchronous FPGA Based on Dual/Single-Rail Hybrid Architecture Peer-reviewed

    Zhengfan XIA, Shota ISHIHARA, Masanori HARIYAMA, Michitaka KAMEYAMA

    The International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 139-142 2012/07

  79. Zhengfan Xia, Shota Ishihara, Masanori Hariyama, and Michitaka Kameyama Peer-reviewed

    Zhengfan Xia, Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    IEEE International Symposium on Circuits and Systems(ISCAS) 3017-3020 2012/05/22

  80. Memory-Access-Driven Context Partitioning for Window-Based Image Processing on Heterogeneous Multicore Processors Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yosuke Ohbayashi, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E95D (2) 354-363 2012/02

    DOI: 10.1587/transinf.E95.D.354  

    ISSN: 0916-8532

  81. 高精度血管抽出に基づく門脈支配領域推定

    岡田 萌, 張山 昌論, 亀山 充隆, 下田 貢, 小林 康浩

    電気関係学会東北支部連合大会講演論文集 2012 68-68 2012

    Publisher: 電気関係学会東北支部連合大会実行委員会

    DOI: 10.11528/tsjc.2012.0_68  

  82. FPGA Implementation of Heterogeneous Multicore Platform with SIMD/MIMD Custom Accelerators Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yasuhiro Takei, Masanori Hariyama, Michitaka Kameyama

    2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012) 1339-1342 2012

    DOI: 10.1109/ISCAS.2012.6271489  

    ISSN: 0271-4302

  83. Implementation of a Low-Power FPGA Based on Synchronous/Asynchronous Hybrid Architecture Peer-reviewed

    Shota Ishihara, Ryoto Tsuchiya, Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E94C (10) 1669-1679 2011/10

    DOI: 10.1587/transele.E94.C.1669  

    ISSN: 0916-8524

    eISSN: 1745-1353

  84. Memory Allocation Exploiting Temporal Locality for Reducing Data-Transfer Bottlenecks in Heterogeneous Multicore Processors Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Yosuke Ohbayashi, Masanori Hariyama, Michitaka Kameyama

    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 21 (10) 1453-1466 2011/10

    DOI: 10.1109/TCSVT.2011.2162277  

    ISSN: 1051-8215

    eISSN: 1558-2205

  85. A low-power FPGA based on autonomous fine-grain power gating Peer-reviewed

    Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    IEEE Transactions on Very Large Scale Integration (VLSI) Systems 19 (8) 1394-1406 2011/08

    DOI: 10.1109/TVLSI.2010.2050500  

    ISSN: 1063-8210

  86. An FPGA Based on Synchronous/Asynchroous Hybrid Architecture with Area-Efficient FIFO Interfaces Peer-reviewed

    Masanori Hariyama, Yoshiya Komatsu, Shota Ishihara, Ryoto Tsuchiya, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA) 331-334 2011/07/19

  87. Data-Transfer-Aware Memory Allocation for Dynamically Reconfigurable Accelerators in Heterogeneous Multicore Processors Peer-reviewed

    Yosuke Ohbayashi, Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA) 282-288 2011/07/18

  88. Memory Allocation for Window-Based Image Processing on Multiple Memory Modules with Simple Addressing Functions Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E94A (1) 342-351 2011/01

    DOI: 10.1587/transfun.E94.A.342  

    ISSN: 0916-8508

    eISSN: 1745-1337

  89. An Implementation of an Asychronous FPGA Based on LEDR/Four-Phase-Dual-Rail Hybrid Architecture Peer-reviewed

    Yoshiya Komatsu, Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    2011 16TH ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC) 89-90 2011

    DOI: 10.1109/ASPDAC.2011.5722311  

  90. A Switch Block for Multi-Context FPGAs Based on Floating-Gate-MOS Functional Pass-Gates Using Multiple/Binary Valued Hybrid Signals Peer-reviewed

    Shota Ishihara, Noriaki Idobata, Yoshihiro Nakatani, Masanori Hariyama, Michitaka Kameyama

    JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING 17 (5-6) 553-580 2011

    ISSN: 1542-3980

    eISSN: 1542-3999

  91. Task Allocation with Algorithm Transformation for Reducing Data-Transfer Bottlenecks in Heterogeneous Multi-Core Processors: A Case Study of HOG Descriptor Computation Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Okumura, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E93A (12) 2570-2580 2010/12

    DOI: 10.1587/transfun.E93.A.2570  

    ISSN: 0916-8508

    eISSN: 1745-1337

  92. Implementation of a Low-Power FPGA Based on Self-Adaptive Voltage Control

    Shota Ishihara, Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama

    Student Organizing International Mini-Conference on Information Electronics Systems 57-58 2010/10/19

  93. Accelerator-Centric Mapping Methodologies for Heterogeneous Multicore Processors Invited

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    Integrated Circuits and Devices in Vietnam(ICDV) 49-54 2010/08/16

  94. A Switch Block Architecture for Multi-Context FPGAs Based on a Ferroelectric-Capacitor Functional Pass-Gate Using Multiple/Binary Valued Hybrid Signals Peer-reviewed

    Shota Ishihara, Noriaki Idobata, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E93D (8) 2134-2144 2010/08

    DOI: 10.1587/transinf.E93.D.2134  

    ISSN: 1745-1361

  95. An Asynchronous FPGA Based on LEDR/4-Phase-Dual-Rail Hybrid Architecture Peer-reviewed

    Shota Ishihara, Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E93C (8) 1338-1348 2010/08

    DOI: 10.1587/transele.E93.C.1338  

    ISSN: 0916-8524

    eISSN: 1745-1353

  96. Synchronising logic gates for wave-pipelining design Peer-reviewed

    Z. Xia, S. Ishihara, M. Hariyama, M. Kameyama

    ELECTRONICS LETTERS 46 (16) 1116-U36 2010/08

    DOI: 10.1049/el.2010.1602  

    ISSN: 0013-5194

  97. Architecture of an FPGA-Oriented Heterogeneous Multi-core Processor with SIMD-Accelerator Cores Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 179-186 2010/07/12

  98. Mapping for a Heterogeneous Multi-Core Media Processor Considering the Data Transfer Time Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Okumura, Masanori Hariyama, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 281-282 2010/07/12

  99. A Field-Programmable VLSI Based on Synchronous/Asynchronous Hybrid Architecture Peer-reviewed

    Masanori Hariyama, Ryoto Tsuchiya, Shota Ishihara, Michitaka Kameyama

    Proc. International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 271-274 2010/07/12

  100. Evaluation of a self-adaptive voltage control scheme for low-power FPGAs Peer-reviewed

    Shota Ishihara, Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama

    Journal of Semiconductor Technology and Science 10 (3) 165-175 2010

    Publisher: Institute of Electronics Engineers of Korea

    DOI: 10.5573/JSTS.2010.10.3.165  

    ISSN: 1598-1657

  101. Acceleration of Optical-Flow Extraction Using Dynamically Reconfigurable ALU Arrays Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 291-294 2009/07

  102. A Fine-Grain SIMD Architecture Based on Flexible Ferroelectric-Capacitor Logic Peer-reviewed

    Shota Ishihara, Noriaki Idobata, Masanori Hariyama, Michitaka Kameyama

    International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 271-274 2009/07

  103. FPGA Implementation of a High-Speed Stereo Matching Processor Based on Recursive Computation Peer-reviewed

    Masanori Hariyama, Keita Tanji, Michitaka Kameyama

    International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 263-266 2009/07

  104. An Asynchronous Field-Programmable VLSI Using LEDR/4-Phase-Dual-Rail Protocol Converters Peer-reviewed

    Shota Ishihara, Yoshiya Komatsu, Masanori Hariyama, Michitaka Kameyama

    International Conference on Engineering of Reconfigurable Systems and Algorithms(ERSA) 145-150 2009/07

  105. Implementation of a Partially Reconfigurable Multi-Context FPGA Based on Asynchronous Architecture Peer-reviewed

    Hasitha Muthumala WAIDYASOORIYA, Masanori HARIYAMA, Michitaka KAMEYAMA

    IEICE Transaction on Electron. E92-C (4) 539-549 2009/04

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI: 10.1587/transele.E92.C.539  

    ISSN: 0916-8524

    More details Close

    This paper presents a novel architecture to increase the hardware utilization in multi-context field programmable gate arrays (MC-FPGAs). Conventional MC-FPGAs use dedicated tracks to transfer context-ID bits. As a result, hardware utilization ratio decreases, since it is very difficult to map different contexts, area efficiently. It also increases the context switching power, area and static power of the context-ID tracks. The proposed MC-FPGA uses the same wires to transfer both data and context-ID bits from cell to cell. As a result, programs can be mapped area efficiently by partitioning them into different contexts. An asynchronous multi-context logic block architecture to increase the processing speed of the multiple contexts is also proposed. The proposed MC-FPGA is fabricated using 6-metal 1-poly CMOS design rules. The data and context-ID transfer delays are measured to be 2.03ns and 2.26ns respectively. We achieved 30% processing time reduction for the SAD based correspondance search algorithm.

  106. Optimal Periodic Memory Allocation for Image Processing With Multiple Windows Peer-reviewed

    Yasuhiro Kobayashi, Masanori Hariyama, Michitaka Kameyama

    IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 17 (3) 403-416 2009/03

    DOI: 10.1109/TVLSI.2008.2004547  

    ISSN: 1063-8210

  107. A Low-Power FPGA Based on Autonomous Fine-Grain Power-Gating Peer-reviewed

    Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    PROCEEDINGS OF THE ASP-DAC 2009: ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE 2009 119-120 2009

    DOI: 10.1109/ASPDAC.2009.4796461  

  108. Architecture of a Low-Power FPGA Based on Self-adaptive Voltage Control Peer-reviewed

    Shota Ishihara, Zhengfan Xia, Masanori Hariyama, Michitaka Kameyama

    2009 INTERNATIONAL SOC DESIGN CONFERENCE (ISOCC 2009) 274-277 2009

    DOI: 10.1109/SOCDC.2009.5423801  

  109. Evaluation of Interconnect-Complexity-Aware Low-Power VLSI Design Using Multiple Supply and Threshold Voltages Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E91A (12) 3596-3606 2008/12

    DOI: 10.1093/ietfec/e91-a.12.3596  

    ISSN: 0916-8508

    eISSN: 1745-1337

  110. Memory Allocation for Multi-Resolution Image Processing Peer-reviewed

    Yasuhiro Kobayashi, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E91D (10) 2386-2397 2008/10

    DOI: 10.1093/ietisy/e91-d.10.2386  

    ISSN: 1745-1361

  111. Evaluation of a field-programmable VLSI based on an asynchronous bit-serial architecture Peer-reviewed

    Masanori Hariyama, Shota Ishihara, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E91C (9) 1419-1426 2008/09

    DOI: 10.1093/ietele/e91-c.9.1419  

    ISSN: 0916-8524

    eISSN: 1745-1353

  112. Non-volatile Multi-Context FPGAs Using Hybrid Multiple-Valued/Binary Context Switching Signals Peer-reviewed

    Masanori Hariyama, Shota Ishihara, Noriaki Idobata, Michitaka Kameyama

    International Conference on Reconfigurable Systems and Algorithms(ERSA) 309-310 2008/07/14

  113. Implementation of a Multi-Context FPGA Based on Flexible-Context-Partitioning Peer-reviewed

    Waidyasooriya, Hasitha Muthumala, Masanori Hariyama, Michitaka Kameyama

    International Conference on Reconfigurable Systems and Algorithms(ERSA) 201-207 2008/07/14

  114. Design of a trinocular-stereo-vision VLSI processor based on optimal scheduling Peer-reviewed

    Masanori Hariyama, Naoto Yokoyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E91C (4) 479-486 2008/04

    DOI: 10.1093/ietele/e91-c.4.479  

    ISSN: 0916-8524

    eISSN: 1745-1353

  115. Multi-context FPGA using fine-grained interconnection blocks and its CAD environment Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Weisheng Chong, Masanori Hariyama, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E91C (4) 517-525 2008/04

    DOI: 10.1093/ietele/e91-c.4.517  

    ISSN: 0916-8524

    eISSN: 1745-1353

  116. Image Processing VLSI Architecture Based on Data Compression Peer-reviewed

    Masanori Hariyama, Hisashi Yoshida, Michitaka Kameyama, Yasubiro Kobayashi

    2008 51ST MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 430-+ 2008

    ISSN: 1548-3746

  117. FPGA implementation of a vehicle detection algorithm using three-dimensional information Peer-reviewed

    Masanori Hariyama, Kensaku Yamashita, Michitaka Kameyama

    2008 IEEE INTERNATIONAL SYMPOSIUM ON PARALLEL & DISTRIBUTED PROCESSING, VOLS 1-8 3475-3479 2008

  118. A Low-Power Field-Programmable VLSI Based on a Fine-Grained Power-Gating Scheme Peer-reviewed

    Masanori Hariyama, Shota Ishihara, Michitaka Kameyama

    2008 51ST MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 702-705 2008

    ISSN: 1548-3746

  119. FPGA implementation of a vehicle detection algorithm using three-dimensional information Peer-reviewed

    Masanori Hariyama, Kensaku Yamashita, Michitaka Kameyama

    IPDPS Miami 2008 - Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium, Program and CD-ROM 2008

    DOI: 10.1109/IPDPS.2008.4536535  

  120. Optimal Scheduling and Memory Allocation for Window-Type Image Processing Peer-reviewed

    Yasuhiro Kobayashi, Masanori Hariyama, Michitaka Kameyama

    IEICE Transaction J90-D (5) 1178-1193 2007/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 1880-4535

  121. Design of a multi-context FPVLSI based on an asynchronous bit-serial architecture Peer-reviewed

    Waidyasoorlya Hasitha Muthumala, Masanorl Hariyama, Michitaka Kameyama

    2007 IEEE DALLAS/CAS WORKSHOP ON SYSTEM-ON-CHIP (SOC): DESIGN, APPLICATIONS, INTEGRATION, AND SOFTWARE 59 (62) 59-62 2007

    DOI: 10.1109/DCAS.2007.4433216  

  122. A field-programmable VLSI based on an asynchronous bit-serial architecture Peer-reviewed

    Masanori Hariyama, Shota Ishihara, Chang Chia Wei, Michitaka Karneyarna.

    2007 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE, PROCEEDINGS OF TECHNICAL PAPERS 380-383 2007

    DOI: 10.1109/ASSCC.2007.4425710  

  123. Minimizing energy consumption based on dual-supply-voltage assignment and interconnection simplification Peer-reviewed

    Masanori Hariyama, Shigeo Yamadera, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E89C (11) 1551-1558 2006/11

    DOI: 10.1093/ietele/e89-c.11.1551  

    ISSN: 0916-8524

    eISSN: 1745-1353

  124. A multi-context FPGA using floating-gate-MOS functional pass-gates Peer-reviewed

    Masanori Hariyama, Sho Ogata, Michitaka Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E89C (11) 1655-1661 2006/11

    DOI: 10.1093/ietele/e89-c.11.1655  

    ISSN: 0916-8524

    eISSN: 1745-1353

  125. Fine-Grained Architectures for Field-Programmable VLSIs Invited

    Masanori Hariyama, Michitaka Kameyama

    International Workshop on Post-Binary ULSI Systems 1-5 2006/05/17

  126. Optimal periodical memory allocation for logic-in-memory image processors Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama, Yasuhiro Kobayashi

    IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI, PROCEEDINGS 193-+ 2006

    DOI: 10.1109/ISVLSI.2006.69  

  127. Switch Block Architecture for Multi-Context FPGAs Using Hybrid Multiple-Valued/Binary Context Switching Signals Peer-reviewed

    Yoshihiro Nakatani, Masanori Hariyama, Michitaka Kameyama

    ISMVL 2006: 36TH INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC 106-111 2006

    DOI: 10.1109/IPDPS.2006.1639467  

    ISSN: 0195-623X

  128. Switch Block Architecture for Multi-Context FPGAs Using Hybrid Multiple-Valued/Binary Context Switching Signals Peer-reviewed

    Yoshihiro Nakatani, Masanori Hariyama, Michitaka Kameyama

    ISMVL 2006: 36TH INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC 106-111 2006

    DOI: 10.1109/ISMVL.2006.40  

    ISSN: 0195-623X

  129. Processor architecture for road extraction based on projective transformation Peer-reviewed

    Sunggae Lee, Masanori Hariyama, Michitaka Kameyama

    2006 SICE-ICASE INTERNATIONAL JOINT CONFERENCE, VOLS 1-13 5808-+ 2006

  130. Dynamically reconfigurable gate array based on fine-grained switch elements and its CAD environment Peer-reviewed

    Masanori Hariyama, Waidyasooriya Hasitha Muthumala, Michitaka Kameyama

    2006 IEEE Asian Solid-State Circuits Conference, ASSCC 2006 155-158 2006

    DOI: 10.1109/ASSCC.2006.357874  

  131. 1000 Frame/sec stereo matching VLSI processor with adaptive window-size control Peer-reviewed

    Masanori Hariyama, Naoto Yokoyama, Michitaka Kameyama

    2006 IEEE Asian Solid-State Circuits Conference, ASSCC 2006 123-126 2006

    DOI: 10.1109/ASSCC.2006.357867  

  132. A multi-context FPGA using a Floating-Gate-MOS functional pass-gate and its CAD environment Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    2006 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS 1803-+ 2006

    DOI: 10.1109/APCCAS.2006.342169  

  133. GA-based assignment of supply and threshold voltages and interconnection simplification for low power VLSI design Peer-reviewed

    Waidyasooriya Hasitha Muthumala, Masanori Hariyama, Michitaka Kameyama

    2006 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS 1264-+ 2006

    DOI: 10.1109/APCCAS.2006.342393  

  134. FPGA implementation of a stereo matching processor based on window-parallel-and-pixel-parallel architecture Peer-reviewed

    M Hariyama, Y Kobayashi, H Sasaki, M Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E88A (12) 3516-3522 2005/12

    DOI: 10.1093/ietfec/e88-a.12.3516  

    ISSN: 0916-8508

    eISSN: 1745-1337

  135. Low-power field-programmable VLSI using multiple supply voltages Peer-reviewed

    W Chong, M Hariyama, M Kameyama

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E88A (12) 3298-3305 2005/12

    DOI: 10.1093/ietfec/e88-a.12.3298  

    ISSN: 1745-1337

  136. Architecture of a stereo matching VLSI processor based on hierarchically parallel memory access Peer-reviewed

    M Hariyama, H Sasaki, M Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E88D (7) 1486-1491 2005/07

    DOI: 10.1093/ietisy/e88-d.7.1486  

    ISSN: 0916-8532

  137. Genetic approach to minimizing energy consumption of VLSI processors using multiple supply voltages Peer-reviewed

    M Hariyama, T Aoyama, M Kameyama

    IEEE TRANSACTIONS ON COMPUTERS 54 (6) 642-650 2005/06

    DOI: 10.1109/TC.2005.100  

    ISSN: 0018-9340

  138. FPGA implementation of a stereo matching processor based on window-parallel-and-pixel-parallel architecture Peer-reviewed

    Masanori Hariyama, Naoto Yokoyama, Michitaka Kameyama, Yasuhiro Kobayashi

    Midwest Symposium on Circuits and Systems 2005 1219-1222 2005

    DOI: 10.1109/MWSCAS.2005.1594327  

    ISSN: 1548-3746

  139. Minimizing energy consumption of VLSI processors based on dual-supply-voltage assignment and interconnection simplification Peer-reviewed

    Masanori Hariyama, Shigeo Yamadera, Michitaka Kameyama

    Midwest Symposium on Circuits and Systems 2005 1867-1870 2005

    DOI: 10.1109/MWSCAS.2005.1594488  

    ISSN: 1548-3746

  140. DSP-specific field-programmable VLSI and its CAD environment Peer-reviewed

    Masanori Hariyama, Sho Ogata, Michitaka Kameyama

    Midwest Symposium on Circuits and Systems 2005 651-654 2005

    DOI: 10.1109/MWSCAS.2005.1594185  

    ISSN: 1548-3746

  141. Novel switch block architecture using non-volatile functional pass-gate for multi-context FPGAs Peer-reviewed

    M Hariyama, W Chong, S Ogata, M Kameyama

    IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI, PROCEEDINGS 46-50 2005

    ISSN: 2159-3477

  142. Design of a multi-context FPGA using a floating-gate-MOS functional pass-gate Peer-reviewed

    Masanori Hariyama, Sho Ogata, Michitaka Kameyama, Yasutoshi Morita

    2005 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE, PROCEEDINGS OF TECHNICAL PAPERS 421-424 2005

    DOI: 10.1109/ASSCC.2005.251755  

  143. Field-programmable VLSI based on a bit-serial fine-grain architecture Peer-reviewed

    M Hariyama, WS Chong, M Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E87C (11) 1897-1902 2004/11

    ISSN: 1745-1353

  144. Design of a Stereo Vision VLSI Processor Based on an Optimal Scheduling Peer-reviewed

    Masanori Hariyama, Toshiki Takeuchi, Michitaka Kameyama

    IEICE transaction on fundamentals of electronics, communications and computer sciences Vol.J87-A (5) 672-680 2004/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5707

  145. Recursive computation-based stereo matching and its implementation in VLSI Peer-reviewed

    K Miura, M Hariyama, M Kameyama

    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 87 (12) 19-27 2004

    ISSN: 8756-663X

  146. Road extraction VLSI processor based on optimal allocation and its application to highly safe intelligent vehicles Peer-reviewed

    M Hariyama, T Kudoh, M Kameyama

    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 87 (6) 49-57 2004

    DOI: 10.1002/ecjb.20094  

    ISSN: 8756-663X

  147. A field-programmable VLSI processor based on direct allocation of a control/data flow graph Peer-reviewed

    N Ohsawa, M Hariyama, M Kameyama

    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 87 (7) 28-37 2004

    DOI: 10.1002/ecjb.10076  

    ISSN: 8756-663X

  148. Low-power field-programmable VLSI processor using dynamic circuits Peer-reviewed

    WS Chong, M Hariyama, M Kameyama

    VLSI 2004: IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI, PROCEEDINGS 243-248 2004

    ISSN: 2159-3477

  149. Program-counter-less bit-serial field-programmable VLSI processor with mesh-connected cellular array structure Peer-reviewed

    N Ohsawa, O Sakamoto, M Hariyama, M Kameyama

    VLSI 2004: IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI, PROCEEDINGS 258-259 2004

    DOI: 10.1109/ISVLSI.2004.1339547  

    ISSN: 2159-3477

  150. VLSI processor for reliable stereo matching based on window-parallel logic-in-memory architecture Peer-reviewed

    M Hariyama, M Kameyama

    2004 SYMPOSIUM ON VLSI CIRCUITS, DIGEST OF TECHNICAL PAPERS 166-169 2004

  151. Architecture of a stereo matching VLSI processor based on hierarchically parallel memory access Peer-reviewed

    M Hariyama, H Sasaki, M Kameyama

    2004 47TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL II, CONFERENCE PROCEEDINGS 245-247 2004

  152. Design of a VLSI Processor Based on Hierarchically Parallel Memory Access\\\\ for Moving-Object-Trajectory Prediction Peer-reviewed

    Masanori Hariyama, Hideki Kazama, Michitaka Kameyama

    IEICE Trans. J86C (8) 760-770 2003/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 1345-2827

  153. Recursive-Computation-Based Stereo Matching and Its VLSI Implementation Peer-reviewed

    Kiyoshi Miura, Masanori Hariyama, Michitaka Kameyama

    IEICE Trans. J86-C (8) 752-759 2003/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 1345-2827

  154. High-Level Synthesis of a Logic-in-Memory VLSI Processor Based on a Genetic Algorithm Peer-reviewed

    Takao Kudoh, Masanori Hariyama, Michitaka Kameyama

    Journal of Information Processing Society of Japan 44 (5) 1206-1215 2003/05

  155. Periodical Memory Allocation Method for Window Operation and ItsApplication to a VLSI Image Processor Peer-reviewed

    Masanori Hariyama, Takao Kudoh, Michitaka Kameyama

    IEICE Trans. J86-C (5) 524-533 2003/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 1345-2827

  156. Highly Reliable Stereo Matching Based on Adaptive Window-Size Selection and Its VLSI Implementation Peer-reviewed

    Masanori Hariyama, Toshiki Takeuchi, Michitaka Kameyama

    Trans. SICE 39 (3) 225-233 2003/03

    Publisher:

    DOI: 10.9746/sicetr1965.39.225  

    ISSN: 0453-4654

  157. Chip design of a field programmable VLSI processor using memory-based cells Peer-reviewed

    N Ohsawa, O Sakamoto, M Hariyama, A Kameyama

    SICE 2003 ANNUAL CONFERENCE, VOLS 1-3 1973-1977 2003

  158. Stereo vision VLSI processor based on a recursive computation algorithm Peer-reviewed

    K Miura, M Hariyama, M Kameyama

    SICE 2003 ANNUAL CONFERENCE, VOLS 1-3 1564-1567 2003

  159. Field ProgrammableVLSI Processor Based on Direct Allocation of a Control/Data Flow Graph Peer-reviewed

    Naotaka OHSAWA, Masanori HARIYAMA, Michitaka KAMEYAMA

    IEICE Trans. Electron J85-C (5) 384-392 2002/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 1345-2827

  160. Architecture of a field-programmable VLSI processor using memory-based cells Peer-reviewed

    N Ohsawa, M Hariyama, M Kameyama

    SICE 2002: PROCEEDINGS OF THE 41ST SICE ANNUAL CONFERENCE, VOLS 1-5 1849-1852 2002

  161. Optical flow extraction based on reuse of intermediate results and VLSI implementation Peer-reviewed

    M Hariyama, M Kameyama

    SICE 2002: PROCEEDINGS OF THE 41ST SICE ANNUAL CONFERENCE, VOLS 1-5 1845-1848 2002

  162. High-performance field programmable VLSI processor based on a direct allocation of a control/data flow graph Peer-reviewed

    N Ohsawa, M Hariyama, M Kameyama

    ISVLSI 2000: IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI - NEW PARADIGMS FOR VLSI SYSTEMS DESIGN 95-100 2002

    DOI: 10.1109/ISVLSI.2002.1016881  

    ISSN: 2159-3477

  163. Pixel-Serial and Window-Parallel VLSI Processor for Stereo Matching Using a Variable Window Size Peer-reviewed

    Masanori HARIYAMA, Michitaka KAMEYAMA

    Interdisciplinary Information Sciences 7 (2) 289-297 2001/09

    Publisher: Tohoku University

    DOI: 10.4036/iis.2001.289  

    ISSN: 1340-9050

    More details Close

    This paper presents a stereo-matching algorithm to establish reliable correspondence between images by selecting a desirable window size for SAD (Sum of Absolute Differences) computation. In SAD computation, a degree of parallelism between pixels in a window changes depending on its window size, while a degree of parallelism between windows is predetermined by the input-image size. Based on this consideration, a window-parallel and pixel-serial architecture is proposed to achieve 100% utilization of processing elements. Not only 100% utilization but also a simple interconnection network between memory modules and processing elements makes the VLSI processor much superior to conventional processors.

  164. Design Methodology for Human-Oriented Intelligent Integrated Systems Peer-reviewed

    Michitaka KAMEYAMA, Masanori HARIYAMA

    Interdisciplinary Information Sciences 7 (2) 279-287 2001/09

    Publisher: Tohoku University

    DOI: 10.4036/iis.2001.279  

    ISSN: 1340-9050

    More details Close

    Several concepts from viewpoints of applications, system integrations, algorithms and VLSI processor architectures are proposed to realize a human-oriented information society. These concepts are merged together to design VLSI processors for human-oriented intelligent integrated systems. As a typical example, a VLSI processor for a ball-catching robot is presented to demonstrate usefulness of the design methodology.

  165. Design of a Collision Detection VLSI Processor for Highly Safe Intelligent Vehicles Based on a Hierarchical Obstacle Representation Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    Trans. IEE of Japan 121-C (6) 1016-1025 2001/06

    Publisher:

    ISSN: 0385-4221

  166. Road Extraction VLSI Processor Based on an Optimal Allocation and Its Application to Highly Safe Intelligent Vehicles Peer-reviewed

    Masanori Hariyama, Takao Kudoh, Michitaka Kameyama

    IEICE Trans. Information and Systems J84-D-I (6) 531-539 2001/06

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0915-1915

  167. Highly-parallel stereo vision VLSI processor based on arm optimal parallel memory access scheme Peer-reviewed

    M Hariyama, S Lee, M Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E84C (3) 382-389 2001/03

    ISSN: 1745-1353

  168. Implementation of an Ultra-High-Speed Path Planning VLSI Processor Peer-reviewed

    Masanori Hariyama, Fumitake Yamaguchi, Michitaka Kameyama

    Trans. SICE 37 (3) 235-241 2001/03

    Publisher:

    DOI: 10.9746/sicetr1965.37.235  

    ISSN: 0453-4654

  169. Highly-parallel stereo vision VLSI processor based on an optimal parallel memory access scheme

    M. Hariyama, S. Lee, M. Kameyama

    IEICE Transactions on Electronics E84-C (3) 382-389 2001

    Publisher: Institute of Electronics, Information and Communication, Engineers, IEICE

    ISSN: 0916-8524

  170. Prospects of Intelligent Integrated Systems for Real-World Applications Peer-reviewed

    Michitaka Kameyama, Masanori Hariyama

    The Society of Instrument and Control Engineers 40 (12) 841-847 2001

    Publisher:

    DOI: 10.11499/sicejl1962.40.841  

    ISSN: 0453-4662

  171. VLSI processor for reliable stereo matching based on adaptive window-size selection Peer-reviewed

    M Hariyama, T Takeuchi, M Kameyama

    2001 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS I-IV, PROCEEDINGS 1168-1173 2001

    DOI: 10.1109/ROBOT.2001.932769  

    ISSN: 1050-4729

  172. An FPGA-oriented motion-stereo processor with a simple interconnection network for parallel memory access Peer-reviewed

    S Lee, M Hariyama, M Kameyama

    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E83D (12) 2122-2130 2000/12

    ISSN: 1745-1361

  173. VLSI Processor for Hierarchical Template Matching and Its Application to a Ball-Catching Robot System Peer-reviewed

    Masanori Hariyama, Hideki Kazama, Michitaka Kameyama

    Proc. IEEE International Symposium on Intelligent Signal Processing and Communication Systems 2 613-618 2000/11

  174. VLSI-Oriented Algorithm for Reliable Stereo Matching Peer-reviewed

    Masanori Hariyama, Toshiki Takeuchi, Michitaka Kameyama

    Proc. IEEE International Symposium on Intelligent Signal Processing and Communication Systems 2 625-630 2000/11

  175. Stereo Vision VLSI Processor Based on Pixel-Serial and Window-Parallel Architecture Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    Journal of Robotics and Mechatronics 12 (5) 521-526 2000/10

  176. Path Planning Based on Distance Transformation and Its VLSI Implementation Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    Journal of Robotics and Mechatronics 12 (5) 527-533 2000/10

  177. Design of a VLSI Processor Based on an Immediate Output Generation Scheduling for Ball-Trajectory Prediction Peer-reviewed

    Hideki Kazama, Masanori Hariyama, Michitaka Kameyama

    Journal of Robotics and Mechatronics 12 (5) 534-540 2000/10

  178. Design of a Motion Stereo VLSI Processor Based on a Transfer Bottleneck-Free Sensor/Memory Architecture Peer-reviewed

    Masanori Hariyama, Seunghwan Lee, Michitaka Kameyama

    Trans. IEEE of Japan 120-E (5) 237-244 2000/05

    Publisher: The Institute of Electrical Engineers of Japan

    DOI: 10.1541/ieejsmas.120.237  

    ISSN: 1341-8939

    More details Close

    This paper presents an architecture for parallel image processing that breaks the bottleneck of data transfer between an image sensor, memories and functional units. By employing an integrated image sensor, parallel data transfer between the sensor and memories can be achieved. Moreover, for parallel memory access, an optimal memory allocation is proposed that maps pixels to be accessed in parallel onto different memory modules. A functional unit allocation for local communication is also proposed to minimize the complexity of the interconnection network between memories and functional units.

  179. Architecture of a high-performance stereo vision VLSI processor Peer-reviewed

    M Hariyama, S Lee, M Kameyama

    ADVANCED ROBOTICS 14 (5) 329-332 2000

    ISSN: 0169-1864

  180. Reliable stereo matching for highly-safe intelligent vehicles and its VLSI implementation Peer-reviewed

    M Hariyama, T Takeuchi, M Kameyama

    PROCEEDINGS OF THE IEEE INTELLIGENT VEHICLES SYMPOSIUM 2000 128-133 2000

  181. Collision detection VLSI processor for intelligent vehicles using a hierarchically-content-addressable memory Peer-reviewed

    M Hariyama, K Sasaki, M Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E82C (9) 1722-1729 1999/09

    ISSN: 1745-1353

  182. Collision Detection VLSI Processor for Highly-Safe Intelligent Vehicles Using a Multiport Content-Addressable Memory Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    Interdisciplinary Information Sciences 5 (2) 109-115 1999

    Publisher: Tohoku University

    DOI: 10.4036/iis.1999.109  

    ISSN: 1340-9050

    More details Close

    High-speed collision detection plays an essential role in a collision warning system for highly-safe vehicles. In collision detection, high computational power is required to perform matching operation between discrete points of obstacles and a vehicle. This paper presents design of a collision detection VLSI processor using content-addressable memories (CAMs) for parallel matching operation. The VLSI processor consists of identical CAMs and processing elements (PEs) for coordinate transformation. If they are fully utilized and the fixed computation time of the VLSI processor is given as a constraint, area minimization of the VLSI processor is attributed to minimization of the area-time product of the CAM and the PE. To reduce the area-time product of the CAM, a multiport CAM (MCAM) is proposed. Each word stored in the MCAM is shared between multiple matching units so that matching operation can be performed in parallel with multiple input words without increasing memory capacity. It is shown that the area of the VLSI processor using 4-port CAMs can be reduced to 43% in comparison with the area of the VLSI processor without them under a time constraint.

  183. Innovation of Intelligent Integrated System Architecture Peer-reviewed

    Michitaka Kameyama, Takahiro Hanyu, Masanori Hariyama

    International Symposium on Future of Intellcetual Integrated Electronics 231-247 1999

  184. Optimal Design of a Parallel VLSI Processor Based on Minimization of Area-Time Products and Its Application Peer-reviewed

    Masanori Hariyama, Michitaka Kameyama

    Proc. the Workshop on Synthesis and System Integration of Mixed Technologyies 179-185 1998

  185. Design of a collision detection VLSI processor based on minimization of area-time products Peer-reviewed

    M Hariyama, M Kameyama

    1998 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS 1-4 3691-3696 1998

    ISSN: 1050-4729

  186. A three-dimensional instrumentation VLSI processor based on a concurrent memory-access scheme Peer-reviewed

    S Lee, M Hariyama, M Kameyama

    IEICE TRANSACTIONS ON ELECTRONICS E80C (11) 1491-1498 1997/11

    ISSN: 0916-8524

    eISSN: 1745-1353

  187. Collision detection VLSI processor for intelligent vehicles based on ROM-type content-addressable memory Peer-reviewed

    M Hariyama, M Kameyama

    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 80 (5) 62-69 1997/05

    ISSN: 8756-663X

  188. A robot vision VLSI processor for the rectangular solid representation of three-dimensional objects Peer-reviewed

    Masanori Hariyama, Yuichi Araumi, Michitaka Kameyama

    Systems and Computers in Japan 28 (2) 54-61 1997

    Publisher: John Wiley and Sons Inc.

    DOI: 10.1002/(SICI)1520-684X(199702)28:2<54::AID-SCJ6>3.0.CO;2-Q  

    ISSN: 0882-1666

  189. Collision detection VLSI processor for intelligent vehicles based on a hierarchical obstacle representation Peer-reviewed

    M Hariyama, M Kameyama

    IEEE CONFERENCE ON INTELLIGENT TRANSPORTATION SYSTEMS 830-834 1997

  190. Design of a VLSI processor chip for three-dimensional instrumentation Peer-reviewed

    SW Lee, M Hariyama, M Kameyama

    SICE '97 - PROCEEDINGS OF THE 36TH SICE ANNUAL CONFERENCE, INTERNATIONAL SESSION PAPERS 951-954 1997

  191. 読出し専用型連想メモリに基づく高安全自動車用衝突チェックVLSIプロセッサ Peer-reviewed

    張山 昌論, 亀山 充隆

    電子情報通信学会論文誌 J79-C-II (11) 698-705 1996/11

  192. 3次元物体直方体表現用ロボットビジョンVLSIプロセッサ Peer-reviewed

    張山 昌論, 荒海 雄一, 亀山 充隆

    電子情報通信学会論文誌 J79-D (5) 245-252 1996/05

  193. Collision detection VLSI processor for intelligent vehicles based on efficient coordinate transformation scheme Peer-reviewed

    M Hariyama, M Kameyama

    PROCEEDINGS OF THE 1996 IEEE IECON - 22ND INTERNATIONAL CONFERENCE ON INDUSTRIAL ELECTRONICS, CONTROL, AND INSTRUMENTATION, VOLS 1-3 755-760 1996

    ISSN: 1553-572X

  194. High-performance VLSI architecture for three-dimensional instrumentation based on a new concurrent memory-access scheme Peer-reviewed

    S Lee, M Hariyama, M Kameyama

    APCCAS '96 - IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS '96 500-503 1996

  195. A Collision Detection Multiprocessor for Intelligent Vehicles Using a High-Density CAM Peer-reviewed

    M. Hariyama, T. Hanyu, M. Kameyama

    IEEE Intelligent Vehicles Symposium 143-148 1994/10

  196. DESIGN OF A CAM-BASED COLLISION DETECTION VLSI PROCESSOR FOR ROBOTICS Peer-reviewed

    M HARIYAMA, M KAMEYAMA

    IEICE TRANSACTIONS ON ELECTRONICS E77C (7) 1108-1115 1994/07

    ISSN: 0916-8524

    eISSN: 1745-1353

  197. Rule-Based Highly-Safe Intelligent Vehicle Using a New Content-Addressable Memory Peer-reviewed

    M. Hariyama, T. Hanyu, M. Kameyama

    IEEE Proc. of the Intelligent Vehicles Symposium 143-148 1994

  198. A COLLISION DETECTION PROCESSOR FOR INTELLIGENT VEHICLES Peer-reviewed

    M HARIYAMA, M KAMEYAMA

    IEICE TRANSACTIONS ON ELECTRONICS E76C (12) 1804-1811 1993/12

    ISSN: 0916-8524

    eISSN: 1745-1353

  199. A PARALLEL COLLISION DETECTION VLSI PROCESSOR FOR ROBOTICS USING A CONTENT-ADDRESSABLE MEMORY Peer-reviewed

    M HARIYAMA, M KAMEYAMA

    PROCEEDINGS OF THE IECON 93 - INTERNATIONAL CONFERENCE ON INDUSTRIAL ELECTRONICS, CONTROL, AND INSTRUMENTATION, VOLS 1-3 1512-1516 1993

Show all ︎Show first 5

Misc. 106

  1. 最新の画像技術と手術 3D-CTシミュレーションから超音波3D画像を用いたナビゲーションシステムの構築

    下田 貢, 張山 昌論, 大城 幸雄, 鈴木 修司

    日本外科系連合学会誌 44 (3) 427-427 2019/05

    Publisher: 日本外科系連合学会

    ISSN: 0385-7883

    eISSN: 1882-9112

  2. 術前肝機能を考慮した最適肝切除領域自動抽出ソフトウエアの開発

    下田 貢, 張山 昌論, 鈴木 修司

    日本外科学会定期学術集会抄録集 118回 1656-1656 2018/04

    Publisher: (一社)日本外科学会

  3. 術前肝機能を考慮した最適肝切除領域自動抽出ソフトウエアの開発

    下田貢, 張山昌論, 鈴木修司

    日本外科学会定期学術集会(Web) 118th ROMBUNNO.PS‐035‐3 (WEB ONLY)-1656 2018/04

    Publisher: (一社)日本外科学会

  4. OpenCL-Based FPGA Platform for FDTD Computation

    116 (56) 17-20 2016/05/20

    Publisher: 電子情報通信学会

    ISSN: 0913-5685

  5. Evaluation of an OpenCL-Based FPGA Accelerator for Phase-Only Correlation

    116 (53) 103-108 2016/05/19

    Publisher: 電子情報通信学会

    ISSN: 0913-5685

  6. Evaluation of an OpenCL-Based FPGA Platform for Particle Filter

    116 (53) 109-113 2016/05/19

    Publisher: 電子情報通信学会

    ISSN: 0913-5685

  7. Design of an FPGA Platform for Stencil Computation Using OpenCL

    116 (53) 9-12 2016/05/19

    Publisher: 電子情報通信学会

    ISSN: 0913-5685

  8. OpenCL-Based Design of an FPGA Accelerator for Phase-Only Correlation

    28 377-382 2015/08/03

    Publisher: [電子情報通信学会]

  9. An FPGA Architecture for Text Search Using a Wavelet-Tree-Based Succinct-Data-Structure Peer-reviewed

    Hasitha Muthumala Waidyasooriya, Daisuke Ono, Masanori Hariyama, Michitaka Kameyama

    International Conference on Parallel and Distributed Processing Techniques and Applications 354-359 2015

  10. Design of an FPGA-Based Accelerator for Shortest-Path Search over Large-Scale Graphs

    TAKEI Yasuhiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 114 (75) 79-83 2014/06/11

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Shortest-path search over large scale graphs plays an important role in various applications. However, shortest path algorithms such as the Dijkstra's algorithm include complex processings. It is difficult for accelerators such as GPUs to accelerate these algorithms. This paper presents the FPGA-based accelerator for the shortest-paths algorithm. In order to design the efficient architecture for large scale graphs, we consider about the task-parallelized scheduling and data structures on the memory. From the result of the evaluation, the proposed architecture is able to deal with graphs with about 800,000 nodes on the Altera StratixV. The proposed architecture is better performance per cycles than that of the Intel Core i7.

  11. Highly-Parallel FPGA Accelerator for DNA Sequence Alignment Using the Burrows-Wheeler Algorithm

    WAIDYASOORIYA Hasitha Muthumala, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 114 (75) 17-20 2014/06/11

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    The mapping of millions of short DNA fragments to a large genome is a very important aspect of the modern bioinformatics. However, software-based DNA sequence mapping takes many days to complete. This paper proposes an FPGA-based hardware accelerator to increase the mapping speed. Proposed accelerator maps over hundred short DNA fragments simultaneously. We apply a data encoding scheme that reduces the genome data size to just 4%, and propose a hardware decoder to decode the data in single clock cycle. We also design customized data paths to increase the speed for random data access. According to the experimental results, the speed-up of the proposed architecture is 15 times compared to its equivalent software application.

  12. Platform and Mapping Methodology for Heterogeneous Multicore Processors

    HARIYAMA Masanori, WAIDYASOORIYA Hasitha Muthumala, TAKEI Yasuhiro, KAMEYAMA Michitaka

    Interdisciplinary Information Sciences 18 (2) 175-184 2012/12/10

    Publisher: Graduate School of Information Sciences, Tohoku University

    ISSN: 1347-6157

  13. Computing Technologies for Human-Centered Real-World Intelligent Systems

    HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report. Image engineering 112 (248) 31-33 2012/10/11

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Both of high performance and low power play essential roles for human-centered applications such as intelligent robots, medical area and welfare area. For the purpose, we must consider various design layers such as the system layer, software layer, processor architecture layer and circuit layer. This paper presents our efforts to three-dimensional image processing, processor architecture and its optimizing technology, reconfigurable computing and adaptive low-power technology based on asynchronous circuit.

  14. Low-Power Heterogeneous Platform for High Performance Computing and Its Application to 2-D FDTD Computation

    HARIYAMA Masanori, HASITHA Muthumalawaidyasoority, TAKEI Yasuhiro, KAMEYAMA Michitaka

    IEICE technical report 112 (203) 89-93 2012/09/18

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Heterogeneous processing with CPUs and accelerators attracts many attentions since they can achieve both of high performance and low power. This paper proposes a heterogeneous computing platform with GPU and FPGA accelerators. The GPU is suitable for floating-point computation with high-degree of parallelism and regular data-flow, while the FPGA is suitable for fixed-point computation. Therefore, combining GPUs and FPGAs can accelerate various types of computation. For GPU-based acceleration, we propose a hybrid single/double precision floating point computation to accelerate 2-D FDTD on GPUs. Single-precision is exploited when the dynamic range of the electromagnetic field. Our experimental result shows that we can achieve over 35 times of speed-up compared to the CPU implementation and over 1.79 times speed-up compared to the conventional GPU acceleration. For FPGA-based acceleration, we found that 95% of the computation can be done using 32-bit fixed point arithmetic without suffering a major precision loss. The same performance of CPU/GPU computing with 10 times less power consumption by using the proposed low-power heterogeneous platform.

  15. An Evaluation of An FPGA Based on Synchronous/Asynchronous Hybrid Architecture

    KOMATSU Yoshiya, HARIYAMA Masanori, ISHIHARA Shota, TSUCHIYA Ryoto, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 111 (388) 93-96 2012/01/19

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents an FPGA architecture that combines synchronous and asynchronous architectures. Datapath components such as logic blocks and switch blocks are designed so as to run in asynchronous and synchronous modes. Moreover, a logic block is presented that implements area-efficient First-in-first-out(FIFO) interfaces, which are usually used for communication between synchronous and asynchronous logic cores. The FPGA based on the hybrid architecture is fabricated in a 65nm process.

  16. An Evaluation of An FPGA Based on Synchronous/Asynchronous Hybrid Architecture

    2012 (17) 1-4 2012/01/12

  17. Dual-Rail/Single-Rail Hybrid Logic Design for High-Performance Asynchronous Circuit

    Zhengfan Xia, Shota Ishihara, Masanori Hariyama, Michitaka Kameyama

    IEEE International Symposium on Circuits and Systems 3017-3020 2012

    DOI: 10.1109/ISCAS.2012.6271954  

  18. グラフ構造解析に基づく肝臓血管の自動抽出

    尾形吉隆, 張山昌論, 亀山充隆, 下田貢

    電気関係学会東北支部連合大会講演論文集(CD-ROM) 2012 (0) 67-67 2012

    Publisher: 電気関係学会東北支部連合大会実行委員会

    DOI: 10.11528/tsjc.2012.0_67  

  19. FPGA Platform for Heterogeneous Multicore Processors with MIMD-ALU-array-type Dynamically Reconfigurable Accelerators

    TAKEI Yasuhiro, WAIDYASOORIYA Hasitha Muthumala, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 111 (258) 73-76 2011/10/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Heterogeneous multi-core architectures with CPUs and accelerators attract many attentions since they can achieve energy-efficient computing for various areas such as media processing and high-performance computing. It is important to explore the suitable architecture for each application since the suitable architectures are different from application to application. This paper reports an FPGA implementation of a heterogeneous multicore architecture with a MIMD-2D-type accelerator where independently-controlled ALUs are aligned in a 2-dimensional array.

  20. Simultaneous Optimization of a CDFG Structure and a Schedule Based on Super-node Representation

    HIRATA Akira, WAUDYASOORIYA Hasitha MUTHUMALA, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 111 (258) 101-105 2011/10/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    In high-level synthesis, control-data flow graphs(CDFGs) are frequently used to describe the behavior of circuits since they can explicitly represents the parallelism and dependency of algorithms. The structure of CDFGs has great impact on the results of the high-level synthesis tasks such as scheduling and allocation. Although it is desirable to find the CDFG structure that is suitable for the constraints of the high-level synthesis tasks, the search for the suitable structure is very time-consuming. This paper presents an CDFG representation using a super node which is a virtual operation node merging several operations nodes. In order to handle the super nodes in the scheduling task, the list-based scheduling is extended such that operations are identified by their inputs. The proposed list-based scheduling minimizes the numbers of control steps and registers under resource constraints based on the priority functions that also optimize the CDFG structure.

  21. FPGA Platform for Heterogeneous Multicore Processors with MIMD-ALU-array-type Dynamically Reconfigurable Accelerators

    2011 (13) 1-4 2011/10/17

  22. Simultaneous Optimization of a CDFG Structure and a Schedule Based on Super-node Representation

    2011 (18) 1-5 2011/10/17

  23. Acceleration of Block Matching by using Multiple Alignments on Heterogeneous Multi-Core Processor

    HIRAMATSU Yoshitaka, WAIDYASOORIYA Hasitha Muthumala, HARIYAMA Masanori, NOJIRI Tohru, UCHIYAMA Kunio

    IEICE technical report 110 (380) 57-62 2011/01/13

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    The large data-transfer time among different cores and data-supply time to arithmetic unit is a big problem in heterogeneous multi-core processors. To reduce the data-supply time, an efficient method based on complex memory allocation was proposed. However, the data-transfer-modules cannot be used to accelerate the data transfer since the method does not use linear or stride data transfers. This paper presents a method by alignment in the data transfer and arithmetic processing respectively so that we can accelerate the data transfers exploiting data-transfer-units together with complex memory allocation. We use block matching to evaluate our technique. The proposed method reduces the data-transfer time by 42% compared to the method that use only complex memory allocation.

  24. Accelerator-Centric Task Allocation Based on Algorithm Transformation for Heterogeneous Multicore Processors

    HARIYAMA Masanori, MUTHUMALA WAIDYASOORIYA Hasitha, KAMEYAMA Michitaka

    IEICE technical report 110 (210) 7-12 2010/09/20

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Heterogeneous multi-core processors are attracted by the media processing applications due to their capability of drawing strengths of different cores to improve the overall performance. However, the data transfer bottlenecks and limitations in the task allocation due to the accelerator-incompatible operations prevents us from gaining full potential of the heterogeneous multi-core processors. This paper presents a task allocation method based on algorithm transformation to increase the freedom of task allocation. We use approximation methods such as CORDIC algorithms to map the accelerator-incompatible operations to accelerator cores. According to the experimental results using HOG descriptor computation, the proposed task allocation method reduces the data transfer time by more than 82% and the total processing time by more than 79% compared to the conventional task allocation method.

  25. Structure of a Low-Power FPGA Based on Synchronous/Asynchronous Hybrid Architecture

    ISHIHARA Shota, TSUCHIYA Ryoto, KOMATSU Yoshiya, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 110 (204) 91-95 2010/09/09

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    An asynchronous circuit is power-efficient for low-workload sub-circuits since there is no power consumption of the clock tree. On the other hand, a synchronous circuit is power-efficient for high-workload sub-circuits because of its simple hardware. Exploiting the advantages of the synchronous circuit and the asynchronous circuit, each sub-circuit of the proposed FPGA performs as either synchronous circuit or asynchronous circuit according to its workload. Since the hardware amount of the asynchronous circuit is about double that of the synchronous circuit, the major concern is designing the functional unit which is efficient for both asynchronous and synchronous circuits. In order to fully exploiting the hardware resources, in the proposed FPGA, a functional unit can be selected to perform as either a single asynchronous four-input LUT or two synchronous four-input LUTs.

  26. FPGA-Oriented Heterogeneous Multi-core Processor : SIMD-Accelerator Core and Its Evaluation

    HARIYAMA Masanori, MUTHUMALA WAIDYASOORIYA Hasitha, MATSUDA Takehisa, KAMEYAMA Michitaka

    IEICE technical report 109 (405) 105-108 2010/01/21

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Heterogeneous multi-core processors are attracted by the image processing and recognition applications due to their capability of drawing strengths of different cores to improve the overall performance. The sizes and performances of FPGAs rapidly grows to the extent that they can include a heterogeneous multi-core processor. Our research objective is to make a platform of heterogeneous multi-core processors and their design environment. As a first step, we implements a heterogeneous multi-core processor with a CPU core and a GPU-like accelerator core. This paper reports the results and discuss the problems.

  27. An Asynchronous FPGA Using LEDR/4-Phase-Dual-Rail Protocol Converters

    ISHIHARA Shota, KOMATSU Yoshiya, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 109 (198) 103-108 2009/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents an asynchronous FPGA that combines the 4-phase dual-rail encoding and the Level-Encoded Dual-Rail (LEDR) encoding. The 4-phase dual-rail encoding is employed to achieve small area for function units, while the LEDR encoding is employed to achieve high throughput and low power for the data transfer using programmable interconnection resources. Area-efficient protocol converters are also proposed in transistor-level optimization. The proposed architecture is designed using a 90nm CMOS process. Compared to the 4-phase-dual-rail-based FPGA, the throughput and the power consumption are respectively by 45% higher and by 36% lower with almost the same transisitor count. Compared to the LEDR-based FPGA, the transistor count is by 35% lower with almost the same power consumption.

  28. Next-Generation Intelligent Systems for Real-World Application and Requirements for Media Processors

    Michitaka Kameyama, Masanori Hariyama

    The Journal of the Institute of Image Information and Television Engineers 63 (9) 1182-1184 2009/09

    Publisher: The Institute of Image Information and Television Engineers

    DOI: 10.3169/itej.63.1181  

    ISSN: 1342-6907

  29. C-033 Optimal Memory Allocation for Heterogeneous Multicore Architecture for Multimedia Applications

    Matsuda Takehisa, Waidyasooriya Hasitha Muthumala, Hariyama Masanori, Kameyama Michitaka

    8 (1) 511-512 2009/08/20

    Publisher: Forum on Information Technology

  30. A Low-Power Field-Programmable VLSI Based on Autonomous Fine-Grain Power Gating

    HARIYAMA Masanori, ISHIHARA Shota, KAMEYAMA Michitaka

    IPSJ SIG Notes 2009 (1) 51-55 2009/01/06

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

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    This paper presents a field-programmable VLSI (FPVLSI) based on fine-grain power gating with small overheads. The asynchronous architecture inherently has the information about the activity of a cell. This greatly reduces the area and power overheads of power gating control because a sequencer and a power-control-timing storage are not required. Detecting data arrival in advance prevents delay for wake-up and unnecessary power switching. The proposed architecture is fabricated in the ASPLA 90nm CMOS process with dual threshold voltages. When the utilization is 20%, the static power is reduced to 34%.

  31. A Low-Power Field-Programmable VLSI Based on Autonomous Fine-Grain Power Gating

    HARIYAMA Masanori, ISHIHARA Shota, KAMEYAMA Michitaka

    2009 (1) 51-55 2009/01/06

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

    More details Close

    This paper presents a field-programmable VLSI (FPVLSI) based on fine-grain power gating with small overheads. The asynchronous architecture inherently has the information about the activity of a cell. This greatly reduces the area and power overheads of power gating control because a sequencer and a power-control-timing storage are not required. Detecting data arrival in advance prevents delay for wake-up and unnecessary power switching. The proposed architecture is fabricated in the ASPLA 90nm CMOS process with dual threshold voltages. When the utilization is 20%, the static power is reduced to 34%.

  32. A Low-Power Field-Programmable VLSI Based on Autonomous Fine-Grain Power Gating

    HARIYAMA Masanori, ISHIHARA Shota, KAMEYAMA Michitaka

    IEICE technical report 108 (375) 51-56 2009/01/06

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    This paper presents a field-programmable VLSI (FPVLSI) based on fine-grain power gating with small overheads. The asynchronous architecture inherently has the information about the activity of a cell. This greatly reduces the area and power overheads of power gating control because a sequencer and a power-control-timing storage are not required. Detecting data arrival in advance prevents delay for wake-up and unnecessary power switching. The proposed architecture is fabricated in the ASPLA 90nm CMOS process with dual threshold voltages. When the utilization is 20%, the static power is reduced to 34%.

  33. C-017 Parallel Programming for GPU-Based Image Processing

    Tago Masaki, Waidyasooriya Hasittha Muthumala, Hariyama Masanori, Kameyama Michitaka

    473-474 2009

    Publisher: Forum on Information Technology

  34. Interconnect-Aware High-Level Design Methodologies For Low-Power VLSIs

    Michitaka Kameyama, Masanori Hariyama

    The 12th International Symposium on Wireless Personal Multimedia Communications (WPMC’09) 2009

  35. Design of a Multi-Context Field Programmable VLSI Using Ferroelectric-Based Functional Pass-Gates

    IDOBATA Noriaki, ISHIHARA Shota, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 108 (28) 57-62 2008/05/13

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Multi-Context FPGAs have multiple memory bits per configuration bit forming configuration planes for fast switching between contexts. Large amount of memory causes significant overhead in area and power consumption. In order to overcome the overhead, this paper presents a ferroelectric-based functional pass-gate that merges storage and switching functions for a multi-context switch (MC-switch). The transistor count of the proposed MC-switch is reduced to 86% in comparison with that of a SRAM-based one. This paper reports the implementation and its result.

  36. Architecture of a Stereo Matching VLSI Based on Recursive Computation

    TANJI Keita, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 108 (28) 63-67 2008/05/13

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a processor architecture for high-speed and reliable trinocular stereo matching based on recursive computation of SAD (Sum of Absolute Differences) computation. The major disadvantage of the trinocular stereo matching is its large computational amount that is double of binocular stereo matching in typical approaches. This is because two SAD results are required to find the depth of a single pixel. To solve this problem, the intermediate results to merge the two SAD results are fully exploited. Moreover, the interconnectaware scheduling is proposed to obtain highly-parallel architecture.

  37. Architecture of a Stereo Matching VLSI Based on Recursive Computation

    TANJI Keita, HARIYAMA Masanori, KAMEYAMA Michitaka

    IPSJ SIG Notes 2008 (39) 63-67 2008/05/06

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

    More details Close

    This paper presents a processor architecture for high-speed and reliable trinocular stereo matching based on recursive computation of SAD (Sum of Absolute Differences) computation. The major disadvantage of the trinocular stereo matching is its large computational amount that is double of binocular stereo matching in typical approaches. This is because two SAD results are required to find the depth of a single pixel. To solve this problem, the intermediate results to merge the two SAD results are fully exploited. Moreover, the interconnectaware scheduling is proposed to obtain highly-parallel architecture.

  38. Design of a Multi-Context Field Programmable VLSI Using Ferroelectric-Based Functional Pass-Gates

    IDOBATA Noriaki, ISHIHARA Shota, HARIYAMA Masanori, KAMEYAMA Michitaka

    IPSJ SIG Notes 2008 (39) 57-62 2008/05/06

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

    More details Close

    Multi-Context FPGAs have multiple memory bits per configuration bit forming configuration planes for fast switching between contexts. Large amount of memory causes significant overhead in area and power consumption. In order to overcome the overhead, this paper presents a ferroelectric-based functional pass-gate that merges storage and switching functions for a multi-context switch (MC-switch). The transistor count of the proposed MC-switch is reduced to 86% in comparison with that of a SRAM-based one. This paper reports the implementation and its result.

  39. Human Extraction Algorithm Using Shape Features and Its VLSI Architecture

    HASHIMOTO Shota, SASAKI Akio, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 107 (382) 77-82 2007/12/06

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a human detection algorithm using 3-dimensional (3-D) and shape-feature information, and its VLSI architecture. For high-speed acquisition of 3-D information, feature-based stereo matching is employed to reduce search area. We propose VLSI architecture with local data transfer between memory modules and processing elements.

  40. A Field-programmable VLSI based on an asynchronous bit-serial architecture (コンシューマエレクトロニクス)

    張山 昌論, 石原 翔太, 亀山 充隆

    映像情報メディア学会技術報告 31 (63) 83-87 2007/12

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  41. Vehicle Detection Algorithm Using Three-Dimensional Information and Its VLSI Architecture

    YAMASHITA Kensaku, SASAKI Akio, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 107 (287) 5-9 2007/10/18

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a vehicle detection algorithm using 3-dimensional(3-D) information and its VLSI architecture. For high-speed acquisition of 3-D information, feature-based stereo matching is employed to reduce search area. Our algorithm consists of some tasks with high degree of column-level parallelism. Based on the parallelism, we propose VLSI architecture with local data transfer between memory modules and processing elements.

  42. Image Processing VLSI Architecture Based on Data Compression and Its Application

    YOSHIDA Hisashi, KOBAYASHI Yasuhiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 107 (287) 11-14 2007/10/18

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    To design low-power and high-speed image processors, the reduction of the number of interconnection units plays an important role. This paper presents a data-compression-based VLSI architecture that reduces the number of interconnection units between processing elements and memory modules without performance degradation. For example of a stereo matching VLSI, the number of interconnection units is reduced to 25%.

  43. C-12-11 Development of Field-Programmable VLSIs Based on Fine-Grained Architectures

    Hariyama Masanori, Kameyama Michitaka

    Proceedings of the Society Conference of IEICE 2007 (2) 66-66 2007/08/29

    Publisher: The Institute of Electronics, Information and Communication Engineers

  44. Architecture for Multi-Context FPGAs Using Ferroelectric-Based Functional Pass-Gates

    NAKATANI Yoshihiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    ITE technical report 30 (65) 1-6 2006/12/14

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  45. Design of a Trinocular-Stereo-Vision VLSI Processor Based on Optimal Scheduling

    YOKOYAMA Naoto, HARIYAMA Masanori, KAMEYAMA Michitaka

    ITE technical report 30 (65) 55-60 2006/12/14

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  46. Design of a Trinocular-Stereo-Vision VLSI Processor Based on Optimal Scheduling

    YOKOYAMA Naoto, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 106 (425) 55-60 2006/12/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    This paper presents a processor architecture for high-speed and reliable trinocular stereo matching based on adaptive window-size control of SAD (Sum of Absolute Differences) computation. To reduce its computational complexity, SADs are computed using images divided into non-overlapping regions, and the matching result is iteratively refined by reducing a window size. Window-parallel-and-pixel-parallel architecture is also proposed to achieve to fully exploit the potential parallelism of the algorithm. The architecture also reduces the complexity of an interconnection network between memory and functional units based on regularity of reference pixels. The stereo matching processor is designed in a 0.18μm CMOS technology.

  47. Architecture for Multi-Context FPGAs Using Ferroelectric-Based Functional Pass-Gates

    NAKATANI Yoshihiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE technical report 106 (425) 1-6 2006/12/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Multi-Context FPGAs have multiple memory bits per configuration bit forming configuration planes for fast switching between contexts. Large amount of memory causes significant overhead in area and power consumption. In order to overcome the overhead, this paper presents a ferroelectric-based functional pass-gate that merges storage and switching functions for a multi-context switch (MC-switch). The transistor count of the proposed MC-switch is reduced to 86% in comparison with that of a SRAM-based one.

  48. Optimal Memory Allocation for Image Processor

    HARIYAMA Masanori, KOBAYASHI Yasuhiro, KAMEYAMA Michitaka

    IPSJ SIG Notes 2006 (62) 95-100 2006/06/09

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

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    One major issue in designing image processors is to design a memory system that supports parallel access with a simple interconnection network. This paper presents an efficient memory allocation to minimize the number of memory modules and processing elements with a parallel access capability based on regularity of window-type image processing.

  49. Optimal Memory Allocation for Image Processor

    HARIYAMA Masanori, KOBAYASHI Yasuhiro, KAMEYAMA Michitaka

    IEICE technical report 106 (92) 95-100 2006/06/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    One major issue in designing image processors is to design a memory system that supports parallel access with a simple interconnection network. This paper presents an efficient memory allocation to minimize the number of memory modules and processing elements with a parallel access capability based on regularity of window-type image processing.

  50. Stereo Vision Processor Based on Window-Parallel-and-Pixel-Parallel Architecture

    YOKOYAMA Naoto, HARIYAMA Masanori, KOBAYASHI Yasuhiro, KAMEYAMA Michitaka

    ITE technical report 30 (8) 43-46 2006/01/26

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  51. Architecture of Multi-Context FPGA Using a Hybrid Multiple-Valued/Binary Context Switching Signal

    NAKATANI Yoshihiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    ITE technical report 30 (8) 37-42 2006/01/26

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  52. Stereo Vision Processor Based on Window-Parallel-and-Pixel-Parallel Architecture

    YOKOYAMA Naoto, HARIYAMA Masanori, KOBAYASHI Yasuhiro, KAMEYAMA Michitaka

    IEICE technical report 105 (569) 43-46 2006/01/19

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    This paper presents a processor architecture for high-speed and reliable stereo matching based on adaptive window-size control of SAD(Sum of Absolute Differences) computation. To reduce its computational complexity, SADs are computed using images divided into non-overlapping regions, and the matching result is iteratively(repeatedly) refined by reducing a window size. Window-parallel-and-pixel-parallel architecture is also proposed to achieve to fully exploit the potential parallelism of the algorithm. The architecture also reduces the complexity of an interconnection network between memory and functional units based on regularity of reference pixels. The stereo matching processor is implemented on an FPGA. Its performance is 80 times faster than that of a general-purpose microprocessor (Pentium4@2GHz), and is enough to generate a 3-D depth image at the video rate of 33MHz.

  53. Low-Power Field-Programmable VLSI Using Multiple Supply Voltages

    CHONG Weisheng, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE transactions on fundamentals of electronics, communications and computer sciences 88 (12) 3298-3305 2005/12/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0916-8508

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    A low-power field-programmable VLSI (FPVLSI) is presented to overcome the problem of large power consumption in field-programmable gate arrays (FPGAs). To reduce power consumption in routing networks, the FPVLSI consists of cells that are based on a bit-serial pipeline architecture which reduces routing block complexity. Moreover, a level-converter-less multiple-supply-voltage scheme using dynamic circuits is proposed, where the cells in non-critical paths use a low supply voltage for low power under a speed constraint. The FPVLSI is evaluated based on a 0.18-μm CMOS design rule. The power consumption of the FPVLSI using multiple supply voltages is reduced to 17% or less compared to that of the static-circuit-based FPVLSI using multiple supply voltages.

  54. Supply-Voltage Assignment Using Regularity for Low Power Design

    YAMADERA Shigeo, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. VLD 104 (709) 1-6 2005/03/11

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a design method to minimize energy of both functional units (FUs) and an interconnection network between FUs. To reduce complexity of the interconnection network, data transfers between FUs are classified according to FU types of operations in a data flow graph. The basic idea behind reducing the complexity of the interconnection network is that the interconnection resource can be shared among data transfers with the same FU type of a source node and the same FU type of a destination node. Moreover, an efficient method based on a genetic algorithm is presented for large-size problems.

  55. Novel switch-block architecture using reconfigurable context memory for multi-context FPGAs

    W. Chong, M. Hariyama, M. Kameyama

    International Workshop on Applied Reconfigurable Computing,Portugal 2005

  56. Architecture of a Multi-Context FPGA Using Reconfigurable Context Memory

    Weisheng CHONG, Sho Ogata, Masanori HARIYAMA, Michitaka KAMEYAMA

    Proc. International Parallel and Distributed Processing Symposium 2005

    DOI: 10.1109/IPDPS.2005.112  

  57. Field-Programmable VLSI Based on a Bit-Serial Fine-Grain Architecture

    HARIYAMA Masanori, CHONG Weisheng, KAMEYAMA Michitaka

    IEICE Trans. Electron., C 87 (11) 1897-1902 2004/11/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0916-8524

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    This paper presents a novel architecture to solve two problems of existing FPGAs : the large delay and area due to complex programmable switch blocks, and the large area due to coarse-grain logic blocks that are underutilized to a great degree. A mesh-connected cellular array based on a bit-serial pipeline architecture is introduced to minimize complexity of switch blocks. A fine-grain logic block architecture with a functionality of a bit-serial adder is presented to minimize the number of inputs and outputs of the logic block since increase in the number of inputs and outputs directly increases the complexity of a switch block. For an area-efficient design, the logic block is implemented based on a hybrid of a programmable logic gate and a dedicated carry logic. The hybrid architecture allows us to use a small lookup table to implement the logic gate. Moreover, the carry logic uses a functional pass-gate that merges both logic and storage functions compactly. The performance of the fine-grain field-programmable VLSI (FPVLSI) is evaluated to be more than 2 times higher than that of a coarse-grain FPVLSI.

  58. Low-Power Field-Programmable VLSI Using Multiple Supply Voltages

    CHONG Weisheng, HARIYAMA Masanori, KAMEYAMA Michitaka

    ITE technical report 28 (49) 17-22 2004/09/10

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  59. Design of a Stereo Vision VLSI Processor Based on an Optimal Scheduling

    HARIYAMA Masanori, KAMEYAMA Michitaka

    ITE technical report 28 (49) 11-15 2004/09/10

    Publisher: 映像情報メディア学会

    ISSN: 1342-6893

  60. Low-Power Field-Programmable VLSI Using Multiple Supply Voltages

    CHONG Weisheng, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 104 (288) 17-22 2004/09/03

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper proposes a low-power field-programmable VLSI processor (FPVLSI) to overcome the problem of large power consumption in field-programmable gate arrays (FPGAs). Large power consumption in FPGAs is mainly caused by complex routing networks. To reduce the complexity of routing networks, an area-efficient bit-serial pipeline architecture is introduced in the FPVLSI. A fine-grain supply-voltage-control scheme is proposed where a supply voltage of each logic block is programmable. To realize the scheme in an area-efficient way, a level-converter-less logic block using dynamic circuits is presented. The FPVLSI is evaluated based on a 0.18-^m CMOS design rule. The power consumption of the FPVLSI is reduced to 40% compared to that of the FPGA.

  61. Design of a Stereo Vision VLSI Processor Based on an Optimal Scheduling

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 104 (288) 11-15 2004/09/03

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    A window-parallel architecture is presented to achieve high-speed stereo matching based on SAD (Sum of Absolute Differences) computation. If a disparity constraint is used to reduce the computational amount, the number of candidate windows for SAD computation changes depending on the reference-window position. This article presents a new scheduling method selecting a pair of reference windows such that the candidate-window number becomes constant. As a result, 100% utilization of processing elements can be achieved. The performance of the VLSI processor becomes 500 times higher than that of a general-purpose processor (Pentium4@2GHz).

  62. SC-11-16 Fine-Grain Field-Programmable VLSI Using Ferroelectric Devices

    Hariyama Masanori, Ohsawa Naotaka, Kameyama Michitaka

    Proceedings of the IEICE General Conference 2004 (2) "S-81"-"S-82" 2004/03/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

  63. Stereo Matching VLSI Processor Based on Hierarchically Parallel Memory Access

    SASAKI Haruka, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. VLD 103 (703) 1-6 2004/03/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a high-speed and reliable stereo matching algorithm based on adaptive window-size control of SAD(Sum of Absolute Differences) computation. To reduce its computational complexity, SADs are computed using multi-resolution images. In designing the VLSI processor, parallel memory access is essential for highly parallel image processing. For parallel memory access, this paper also presents optimal memory allocation for multi-resolution-based SAD computation. In the memory allocation, we consider minimization of the number of memory modules under the parallel memory access condition.

  64. Design of a Field Programmable VLSI Processor Based on Bit -Serial- Pipeline Architectures

    OHSAWA Naotaka, SAKAMOTO Osamu, HARIYAMA Masanori, KAMEYAMA Michitaka

    2003 (105) 145-149 2003/10/23

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

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    This paper presents a field programmable VLSI processor (FPVLSI) based on bit-serial pipeline architecture that reduces complexity of a programmable interconnection network. The direct allocation of a control/data flow graph (CDFG) is employed where only a single node in a CDFG is mapped into a single cell so that the inter-connection complexity is greatly reduced. Two-dimensional mesh network and bit-serial pipeline architecture also reduces the complexity of switch blocks. The FPVLSI with 64 cells is designed in a 0.18/mi CMOS design rule. The performance of the FPVLSI is evaluated to be 13 times higher than that of the conventional FPGA in a typical application.

  65. Architecture of a Recursive -Computation- Based Stereo Matching VLSI Processor

    MIURA Kiyoshi, HARIYAMA Masanori, KAMEYAMA Michitake

    2003 (105) 117-122 2003/10/23

    Publisher: Information Processing Society of Japan (IPSJ)

    ISSN: 0919-6072

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    High-speed correspondence matching is essential for stereo vision. A typical method for correspondence matching is one based on SAD (Sum of Absolute Differences) computation. This paper presents a stereo matching algorithm that minimizes the computational amount by re-using the intermediate results of SADs. A VLSI processor architecture is also proposed based on an optimal allocation that minimizes the complexity of the inter-connection network. As a result, the performance of the VLSI processor becomes 5000 times faster than that of a general-purpose processor.

  66. Architecture of a Recursive-Computation-Based Stereo Matching VLSI Processor

    MIURA Kiyoshi, HARIYAMA Masanori, KAMEYAMA Michitake

    Technical report of IEICE. DSP 103 (380) 25-30 2003/10/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    High-speed correspondence matching is essential for stereo vision.A typical method for correspondence matching is one based on SAD(Sum of Absolute Differences) computation. This paper presents a stereo matching algorithm that minimizes the computational amount by re-using the intermediate results of SADs. A VLSI processor architecture is also proposed based on an optimal allocation that minimizes the complexity of the interconnection network. As a result, the performance of the VLSI processor becomes 5000 times faster than that of a general-purpose processor.

  67. Design of a Field Programmable VLSI Processor Based on Bit-Serial-Pipeline Architectures

    OHSAWA Naotaka, SAKAMOTO Osamu, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. DSP 103 (380) 53-57 2003/10/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper presents a field programmable VLSI processor (FPVLSI) based on bit-serial pipeline architecture that reduces complexity of a programmable interconnection network. The direct allocation of a control/data flow graph (CDFG) is employed where only a single node in a CDFG is mapped into a single cell so that the interconnection complexity is greatly reduced. Two-dimensional mesh network and bit-serial pipeline architecture also reduces the complexity of switch blocks. The FPVLSI with 64 cells is designed in a 0.18μm CMOS design rule. The performance of the FPVLSI is evaluated to be 13 times higher than that of the conventional FPGA in a typical application.

  68. Architecture of a High Performance Field Programmable VLSI Processor Using Memory-Based Cells

    Ohsawa Naotaka, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the Society Conference of IEICE 2003 (2) 78-78 2003/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

  69. C-12-4 Low Power Field Programmable VLSI Processor Using Multiple Supply Voltages

    CHONG Wei Sheng, HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the Society Conference of IEICE 2003 (2) 79-79 2003/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

  70. Design and Evaluation of a Field Programmable VLSI Processor Using Memory Based Cells

    Ohsawa Naotaka, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the IEICE General Conference 2003 (2) 74-74 2003/03/03

    Publisher: The Institute of Electronics, Information and Communication Engineers

  71. High-Level Synthesis for Low Power VLSI Processors Based on a Genetic Algorithm

    AOYAMA Tetsuya, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. DSP 102 (399) 25-31 2002/10/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Increasing clock frequencies and complexity of VLSI processors drive the needs for high-level synthesis for low power. For energy consumption minimization problems. under time and area constraints, the integer linear programming (ILP) methods have been reported until now. However, the execution time increases with the size of problems. This paper presents an efficient search method based on a genetic algorithm. Efficient search can be achieved by crossover that seldom generates non-valid individuals and a local search is also utilized in the algorithm. Experimental results for large-size problems demonstrate that it is possible to get high quality solutions in reasonable time.

  72. Recursive-Computation-Based Stereo Matching and VLSI Implementation

    Miura Kiyoshi, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the Society Conference of IEICE 2002 (2) 80-80 2002/08/20

    Publisher: The Institute of Electronics, Information and Communication Engineers

  73. High-Level Synthesis for a Field Programmable VLSI Processor Based on Regularity of a Data Flow Graph

    Ohsawa Naotaka, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the Society Conference of IEICE 2002 (2) 81-81 2002/08/20

    Publisher: The Institute of Electronics, Information and Communication Engineers

  74. Design of a Field Programmable VLSI Processor Based on Bit-Serial-Operation Cells

    OHSAWA Naotaka, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 102 (274) 1-6 2002/08/16

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    As cost-effective approach to develop special-purpose processors, field programmable gate arrays (FP-GAs) are widely used. However, their major disadvantage is their low performance because of large delays of programmable interconnection networks. This paper presents a field programmable VLSI processor (FPVLSI) based on a two-dimensional mesh network and bit-serial architecture. As an area-efficient design of a cell, a bit-serial-operation cell that consists of shift registers is proposed. One of the arithmetic/logic, memory and control functions is selected in the cell. Based on the regular data flow of a bit-serial operation, the shift register allow bit-by-bit memory access and an one-hot counter for control function can be realized without complex control circuits. Moreover, a lookup table for arithmetic/logic function can be realized using shift register by selecting the output of D flip flops in the shift register. As a result, area of the cell is reduced and highly-parallel cell array can be constructed.

  75. Design of a Field Programmable VLSI Processor Based on Bit-Serial-Operation Cells

    OHSAWA Naotaka, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. SDM 102 (272) 1-6 2002/08/16

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    As cost-effective approach to develop special-purpose processors, field programmable gate, arrays (FPGAs) are widely used. However, their major disadvantage is their low performance because of large delays of programmable interconnection networks. This paper presents a field programmable VLSI processor (FPVLSI) based on a two-dimensional mesh network and bit-serial architecture. As an area-efficient design of a cell, a bit-serial-operation cell that consists of shift registers is proposed. One of the arithmetic/logic, memory and control functions is selected in the cell. Based on the regular data flow of a bit-serial operation, the shift register allow bit-by-bit memory access and an one-hot counter for control function can be realized without complex control circuits. Moreover, a lookup table for arithmetic/logic function can be realized using shift register by selecting the output of D flip flops in the shift register. As a result, area of the cell is reduced and highly-parallel cell array can be constructed.

  76. High-Level Synthesis for Low Power VLSI Processors and Its Search Method

    Aoyama Tetsuya, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the IEICE General Conference 2002 (2) 100-100 2002/03/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

  77. High-Level Synthesis for Low-Power VLSI Processors and Its Efficient Search Method

    HARIYAMA Masanori, AOYAMA Tetsuya, KAMEYAMA Michitaka

    Technical report of IEICE. VLD 101 (695) 25-31 2002/03/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    The emergence of mobile computing and mobile communication devices such as laptop computers, cellular phones, wireless modems, etc., drive the needs for low-power design of VLSI processors. Moreover, development of high-level methodologies for low-power design becomes important because of increasing complexities of VLSI processors. The use of multiple supply voltages is one efficient technique to obtain low-power implementations at reduced performance overheads. This paper presents an integer linear programming model for energy-consumption minimization using multiple supply voltages. Moreover, an efficient genetic algorithm is proposed based on a new crossover method using cutsets of a data-flow graph.

  78. Optical Flow Extraction Based on Reuse of Intermediate Results and VLSI Implementation

    M. Hariyama, M. Kameyama

    Proc. SICE2002 2366-2369 2002

  79. Architecture of a Field-Programmable VLSI Processor Using Memory-Based Cells

    N. Ohsawa, M. Hariyama, M. Kameyama

    Proc. SICE2002 2370-2373 2002

  80. VLSI Computing and System Integration for Real-World Applications

    Michitaka Kameyama, Masanori Hariyama

    2002 International Symposium on New Paradigm VLSI Computing 13-16 2002

  81. Desgin of a VLSI Image Processor Based on a Periodical Memory Allocation

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 101 (386) 9-14 2001/10/19

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Parallel memory access with the minimum hardware cost plays an essential role for design of VLSI processors for highly parallel image processing. For the purpose, it is desired to find a memory allocation with a minimum memory capacity and the minimum number of memory modules. Exhaustive search is impractical since its execution time grows rapidly with an image size. This paper presents an efficient search method based on a periodical allocation where an allocation for a total image is obtained by repeating an allocation for a sub-image periodically.

  82. High-Performance Stereo Vision VLSI Processor and Its Applications

    HARIYAMA Masanori, TAKEUCHI Toshiki, KAMEYAMA Michitaka

    Technical report of IEICE. ICD 101 (266) 39-44 2001/08/17

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Stereo vision is a well-known method of three-dimensional instrumentation. A major issue of stereo vision is to establish reliable correspondence between images. This article presents a reliable stereo-matching algorithm based on SAD(Sum of Absolute Differences)computation. Reliable corresponding points can be found by selecting a desirable window size of the SAD computation based on the uniqueness of a minimum value of the SAD graph. A pixel-serial window-parallel scheduling is also proposed to achieve 100% utilization of processing elements. The stereo vision VLSI processor is fabricated in a gate-array-based approach. Its performance is more than 400 times higher than that of a general-purpose processor.

  83. Architecture of High Performance Field Programmable VLSI Processor

    OHSAWA Naotaka, HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. SDM 101 (247) 23-30 2001/07/27

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    Field programmable gate arrays(FPGAs)are flexible and cost-effective in implementing special-purpose processors. However, there are two major problems in FPGAs. One is that large delay exists in interconnection modules. The other is that an area of a processing element(PE)becomes large. To solve the problems, this article describes a field programmable VLSI processor(FPVLSI)with a direct allocation of a control/data flow graph and data transfer between adjacent PEs. As a result, the performance of the stereo vision processor using an FPVLSI is superior to that using the conventional FPGAs.

  84. 2P1-N3 Implementation of High-Performance Stereo Vision VLSI Processor

    2001 65-65 2001/06/08

    Publisher: The Japan Society of Mechanical Engineers

  85. Design of a Field Programmable VLSI Based on Direct Mapping of a Data Flow Graph

    Ohsawa Naotaka, Hariyama Masanori, Kameyama Michitaka

    Proceedings of the IEICE General Conference 2001 (2) 116-116 2001/03/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

  86. High-Level Synthesis for Energy Consumption Minimization under Time and Area Constraints

    Hariyama Masanori, Aoyama Tetsuya, Kameyama Michitaka

    Proceedings of the Society Conference of IEICE 68-68 2001

    Publisher: The Institute of Electronics, Information and Communication Engineers

  87. An FPGA-Oriented Motion-Stereo Processor with a Simple Interconnection Network for Parallel Memory Access

    LEE Seunghwan, HARIYAMA Masanori, KAMEYAMA Michitaka

    IEICE Trans. Inf. & Syst. 83 (12) 2122-2130 2000/12/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0916-8532

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    In designing a field-programmable gate array(FPGA)-based processor for motion stereo, a parallel memory system and a simple interconnection network for parallel data transfer are essential for parallel image processing. This paper, firstly, presents an FPGA-oriented hierarchical memory system. To reduce the bandwidth requirement between an on-chip memory in an FPGA and external memories, we propose an efficient scheduling:Once pixels are transferred to the on-chip memory, operations associated with the data are consecutively performed. Secondly, a rectangular memory allocation is proposed which allocates pixels to be accessed in parallel onto different memory modules of the on-chip memory. Consequently, completely parallel access can be achieved. The memory allocation also minimizes the required capacity of the on-chip memory and thus is suitable for FPGA-based implementation. Finally, a functional unit allocation is proposed to minimize the complexity between memory modules and functional units. An experimental result shows that the performance of the processor becomes 96 times higher than that of a 400MHz Pentium II.

  88. High-Performance Path Planning VLSI Processor and Its Application to Highly-Safe Intelligent Vehicles

    Hariyama Masanori, Kameyama Michitaka

    Technical report of IEICE. FTS 100 (30) 25-31 2000/04/28

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    To realize a collision warning system, high-speed path planning for finding a collision-free path is essential.For high-speed path planning, it is important to develop a parallel VLSI processor that executes intelligent processings with an enormous amount of input data.In designing a parallel VLSI processor, one major issue is to overcome a transfer bottleneck between memory modules and processing elements.A logic-in-memory architecture plays an important role for the purpose.This paper presents a path planning VLSI processor based on the logic-in-memory architecture.Its evaluation shows that it is clearly superior to a general-purpose processor.

  89. Stereo Vision VLSI Processor Based on Optimization of a Periodic Memory Allocation

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the IEICE General Conference 2000 (2) 120-120 2000/03/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

  90. 1A1-50-066 ボール軌道予測 VLSI プロセッサの最適設計とその FPGA による実現

    風間 英樹, 張山 昌論, 亀山 充隆

    ロボティクス・メカトロニクス講演会講演概要集 2000 38-38 2000

    Publisher: 一般社団法人日本機械学会

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    リアルワールド応用においては, 運動物体が将来どのような位置軌道をとるかを予測する, 軌道予測が重要な基礎技術となる。運動物体軌道予測の一例として, 動いているボールの軌道を予測し, 捕球するシステムをとりあげる。このようなシステムにおいては, ボール抽出の処理時間が膨大となるという問題点がある。そこで, ボール抽出を高速に行うVLSIプロセッサの最適設計法とそのFPGAによる実現について述べる。

  91. 1A1-50-068 高信頼ステレオマッチングとその VLSI 化

    張山 昌論, 竹内 俊樹, 亀山 充隆

    ロボティクス・メカトロニクス講演会講演概要集 2000 38-38 2000

    Publisher: 一般社団法人日本機械学会

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    ステレオビジョンにおいては, 信頼性が高い対応点探索が重要となる。テンプレートマッチングに基づく対応点探索において, 信頼性を高めるためには適切なウィンドウサイズの決定が重要となる。本稿では, ウィンドウサイズを変化させた場合の類似度の履歴に基づき最も信頼性の高い候補点を選択するアルゴリズムを提案する。さらに, ウィンドウサイズ可変対応点探索に適合するVLSIアーキテクチャを提案する。

  92. 1A1-50-067 距離変換に基づくロボットマニピュレータ障害物回避 VLSI プロセッサ

    山口 文武, 張山 昌論, 亀山 充隆

    ロボティクス・メカトロニクス講演会講演概要集 2000 38-38 2000

    Publisher: 一般社団法人日本機械学会

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    障害物回避は, 自律的に作業を遂行する知能ロボットを実現するための基本的な処理である。障害物回避軌道の計画においては, 通常, 膨大な数の回避軌道の候補点に対して衝突チェックを行うため, 処理時間が膨大となる。本稿では, 障害物から離れた候補点が回避軌道となる可能性が高いことに着目し, 計算量を大幅に減少するアルゴリズムと, そのVLSIアーキテクチャについて述べる。

  93. Collision Detection VLSI Processor for Intelligent Vehicles Using a Hierarchically-Content-Addressable Memory

    HARIYAMA Masanori, SASAKI Kazuhiro, KAMEYAMA Michitaka

    IEICE Trans. Electron., C 82 (9) 1722-1729 1999/09/25

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0916-8524

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    High-speed collision detection is important to realize a highly-safe intelligent vehicle. In collision detection, high-computational power is required to perform matching operation between discrete points on surfaces of a vehicle and obstacles in real-world environment. To achieve the highest performance, a hierarchical matching scheme is proposed based on two representations: the coarse representation and the fine representation. A vehicle is represented as a set of rectangular solids in the fine representation (fine rectangular solids), and the coarse representation, which is also a set of rectangular solids, is produced by enlarging the fine representation. If collision occurs between an obstacle discrete point and a rectangular solid in the coarse representation (coarse rectangular solid), then it is sufficient to check the only fine rectangular solids contained in the coarse one. Consequently, checks for the other fine rectangular solids can be omitted. To perform the hierarchical matching operation in parallel, a hierarchically-content-addressable memory (HCAM) is proposed. Since there is no need to perform matching operation in parallel with fine rectangular solids contained in different coarse ones, the fine ones are mapped onto a matching unit. As a result, the number of matching units can be reduced without decreasing the performance. Under the condition of the same execution time, the area of the HCAM is reduced to 46.4% in comparison with that of the conventional CAM in which the hierarchical matching scheme is not used.

  94. Parallel Path-Planning VLSI Processor Architecture for Highly-Safe Vehicles

    SAWADA Masayuki, HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the IEICE General Conference 1999 (2) 134-134 1999/03/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

  95. Data-Compression VLSI Architecture for On-Chip Communication

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the IEICE General Conference 1999 (2) 121-121 1999/03/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

  96. Design of a High-Performance Collision-Detection VLSI Processor Based on a Hierarchical Representation of a Vehicle and Obstacles

    SASAKI Kazuhiro, HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the IEICE General Conference 1998 (2) 139-139 1998/03/06

    Publisher: The Institute of Electronics, Information and Communication Engineers

  97. Design of a VLSI Processor for Intelligent Integrated Systems Based on Area-Time Product Minimization and Its Application

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. DSP 96 (301) 65-70 1996/10/18

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    This paper describes a high-performance collision detection VLSI processor for intelligent vehicles which is a typical example of intelligent integrated systems. In the collision detection, high-computational power is essential in not only coordinate transformation but also the matching operation between vehicle and obstacle pixels. In the processor, a content-addressable memory is introduced to store vehicle pixel information, so that the matching operation is drastically accelerated. Coordinate transformation is also performed by several processing elements(PEs) in parallel. When the utilized ratios of the CAM and PEs are 100%, the minimization of the delay time under an area constraint can be attributed to the area-time product minimization of the CAM and PEs. As a result, it is made clear that a high-performance architecture using a ROM-type CAM and a bit-serial pipelined PE is superior to other ones.

  98. Architecture of a Collision Detection VLSI Processor for Intelligent Vehicles Based on a Hierarrchical Obstacle Representation

    KAMEYAMA Michitaka, HARIYAMA Masanori

    Proceedings of the Society Conference of IEICE 1996 (2) 315-316 1996/09/18

    Publisher: The Institute of Electronics, Information and Communication Engineers

  99. Architecture of a High-Performance Collision Detection VLSI Processor for Intelligent Vehicles

    Hariyama Masanori, Kameyama Michitaka

    Proceedings of the IEICE General Conference 1996 (2) 290-291 1996/03/11

    Publisher: The Institute of Electronics, Information and Communication Engineers

  100. A collision detection VLSI processor based on a ROM-type content-addressable memory for intelligent vehicles

    HARIYAMA M.

    IEICE Trans. 79 (11) 698-705 1996

  101. Architecture of a Collision Detection VLSI Processor for Intelligent Vehicles Based on a ROM-Type Content-Addressable Memory

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Technical report of IEICE. DSP 95 (299) 87-94 1995/10/20

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

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    In the collision detection of intelligent Vehicles, high-computational power is essential to check a conflict between a vehicle and an obstacle. For the matching operations, a vehicle representation based on a set of rectangular, solids is used, so that they are performed by only magnitude comparison which is suitable for the processing using a content-addressable memory(CAM). When the vehicle pixel information can be stored in advance, it is not necessary to change the CAM in real time. As a result, a new ROM-type CAM is efficiently employed for the high-speed matching operations.

  102. High-Performance CAM-Based Collision Detection VLSI Processor

    HARIYAMA Masanori, KAMEYAMA Michitaka

    Proceedings of the Society Conference of IEICE 1995 (2) 193-193 1995/09/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

  103. Architecture of a Collision Detection VLSI Processor Based on a Hicrarchical Manipulator Representation

    HARIYAMA Masanori, KAMEYAMA Michitaka

    1994 (2) 165-165 1994/09/26

    Publisher: The Institute of Electronics, Information and Communication Engineers

  104. Design of a VLSI Processor for Highly Safe Vehicles′ Based on an I ntelligent Collision Detection Algorithm

    Hariyama Masanori, Kameyama Michitaka

    Technical report of IEICE. ICD ICD94-106 1994

    Publisher: The Institute of Electronics, Information and Communication Engineers

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    For safe driving,the high-speed collision detection is essential. In the collision detection,a large memory capacity is usually required to store 3-dimensional obstacle information.Moreover,high- computational power is essential in not only coordinate transformation but also matching operation.In the proposed VLSI processor,a compact obstacle representation based on a union of rectangular solids is introduced,so that the matching operation is drastically accelerated by using a content-addressable memory.A parallel and pipelined architecture for high-speed coordinate transformation is proposed based on the CORDIC algorithms.The collision detection is performed in parallel by the VLSI processors without any communication between them,so that a desired performance can be achieved unless there is limitation-on the number of the VLSI processors.For an example,a collision waming system for a maximum running speed of 40 km, h can be constructed with 20 VLSI processors.

  105. Architecture of a CAM-Based Collision Detection VLSI Processor for a Vehicle

    Hariyama Masanori, Kameyama Michitaka

    Technical report of IEICE. ICD 93 (187) 39-46 1993/08/19

    Publisher: The Institute of Electronics, Information and Communication Engineers

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    Since carelessness in driving causes a terrible traffic accident, it is an important subject for a vehicle to avoid collision autonomously.Real-time collision detection between a vehicle and obstacles will be a key target for the next-generation car electronics system.In collision detection,a large storage capacity is usually required to store the 3-D information on the obstacles located in a workspace.Moreover,high-computational power is essential in not only coordinate transformation but also matching operation.In the proposed collision detection VLSI processor,the matching operation is drastically accelerated by using a Content- Addressable Memory(CAM)which evaluates the magnitude relationships between an input word and all the stored words in parallel.An new obstacle representation based a union of rectangular solids is also used to reduce the obstacle memory capacity,so that collision detection can be performed by only magnitude comparison in parallel.Parallel architecture using several identical processor elements(PEs)is employed to perform the coordinate transformation at high speed,and each PE performs coordinate transformation at high speed based on the COordinate Rotation DIgital Computation algorithms.When 100 PEs are used,the performance is evaluated to be more than one million times higher than that of the 28.5 MIPS workstation.

  106. Design of a Robot Vision VLSI Processor for Obstacle Avoidance of an Intelligent Robot

    Araumi Yuichi, Hariyama Masanori, Kameyama Michitaka

    Technical report of IEICE. VLD 17-23 1993

    Publisher: The Institute of Electronics, Information and Communication Engineers

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    The collision detection is one of the most important processings for intelligent robots to move autonomously.In collision detection, a large memory capacity is required to store three-dimensional obstacle information.To solve this problem,we proposed a rectangular solid representation.A VLSI-oriented algorithm is proposed by which an obstacle represented by discrete points is transformed to the rectangular solid representation.Since high- computational power is required for the matching operation between rectangular solid and discrete points,a special-purpose VLSI processor is essential.In the proposed VLSI processor,A content- addressable memory is introduced to perform the matching operation by magnitude comparison.As a result,it becomes 20000 times faster than a 28.5 MIPS workstation.

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Books and Other Publications 5

  1. Design of FPGA-Based Computing Systems with OpenCL

    Hasitha Muthumala Waidyasooriya, Masanori Hariyama, Kunio Uchiyama

    2017/11

  2. FPGAの原理と構成

    張山昌論

    オーム社 2016/03

  3. Emerging Trends in Image Processing, Computer Vision, and Pattern Recognition

    Masanori Hariyama, Mitsugi Shimoda

    Morgan Kaufmann Publishers 2015/01

  4. Towards Green ICT

    M.Kameyama, M.Hariyama

    River Publishers Series in Communications 2010/07

  5. 映像情報メディア工学大事典

    張山昌論

    オーム社 2010/06

    ISBN: 9784274208690

Presentations 2

  1. FPGAを用いたヘテロジニアスマルチコアプロセッサのプラットフォーム開発

    電子情報通信学会集積回路研究会主催 第2回アクセラレーション技術発表討論会 2010/09/10

  2. リアルワールド知能システムとヘテロジニアスマルチコアアーキテクチャの展望

    第8回 SuperH フォーラム 2009/09/04

Research Projects 21

  1. High-efficiency Heterogeneous Custom Accelerator Foundation for Transformer

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2024/04/01 - 2028/03/31

  2. 細胞社会は互いのコミュニケーションをどのようにとっているか:複雑系の視点

    岸本 聡子, 井上 健一, 張山 昌論

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 獨協医科大学

    2021/04/01 - 2024/03/31

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    生きた組織において骨髄由来の細胞と間質細胞の活性化を蛍光色素で区別するため、2種類の蛍光タンパク(DsRed, GFP)のトランスジェニックマウスを使用した実験系を構築した。活性化した間質細胞で赤色蛍光タンパクを合成するDsRedマウスをX線照射によって骨髄抑制し、緑色蛍光タンパクを合成するGFPマウスの骨髄細胞を移植した。作製したマウスの精巣上体周囲脂肪に外科的に傷害刺激を加え、再生する脂肪組織をタイムラプス蛍光顕微鏡で観察した。これにより、骨髄細胞が傷害箇所に空間配置される様子、空間の網羅度、移動軌跡、細胞間距離、間質細胞が活性化する前後の時系列の情報を得ることができる。その結果、急性炎症期に骨髄から動員された細胞は、組織内では傷害部位に集合するという明確な目的をもって遊走する姿が捉えられ、血管内では傷害部位近くの血管内を行き来しながら血管外遊走する細胞も観察された。 このような急性炎症における骨髄細胞、活性化する間質細胞、産生・分解されるサイトカイン、細胞外マトリクスそれぞれのふるまいを模擬する生体シミュレーションを、空間微分と時間微分の異なるアルゴリズムで再現した。空間微分は、細胞周囲の全方位にセンサーがあり、サイトカインの濃度がより高い方向に誘因されるアルゴリズムである。時間微分は、細胞がランダムに探索行動をする過程で感知するサイトカイン濃度の時間変化を定量し、増加した場合をシグナルと定義するアルゴリズムである。空間微分アルゴリズムにおいて細胞は、サイトカインの発生源に「迷いなく」集まってくる。集まった複数の細胞は「シグナルセンサー」を形成し、恒常的にシグナルを維持する。時間微分アルゴリズムにおいて細胞は、サイトカインの発生源に「高い確率で」集まってくる。これまでの結果、生きた組織において観察された骨髄由来の細胞は、空間微分の法則に従って遊走していることが示唆された。

  3. Custom Accelerators for Quantum-Annealing-Assisted Material Informatics

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2020/04/01 - 2024/03/31

  4. Establishment of Effective Science Education during School Age utilizing Brain Science-based Methods by a Medical Doctor and a Psychologist

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Seitoku University

    2021/04/01 - 2022/03/31

  5. Development of epigenomic markers that enable to perform early assessment and intervention for neurodevelopmental disorders

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Seitoku University

    2018/06/29 - 2022/03/31

  6. Intraoperative planning and navigation based on three-dimensional image processing combining ultrasound and CT

    Shimoda Mitsugi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tokyo Medical University

    2016/04/01 - 2020/03/31

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    We worked on the development of whether the 2D ultrasound images that were conventionally used in liver surgery could be converted into 3D images. (1) Development of high-precision real-time 3D image technology based on ultrasonic probe position/orientation information and ultrasonic images from a highly accurate magnetic sensor. (2) We have developed a highly accurate real-time automatic recognition technology for blood vessels and tumors of the liver from ultrasonic 3D images. A high-precision magnetic sensor (electromagnetic field type measurement system AURORA) is used as a position/orientation sensor, and the magnetic sensor is incorporated into the ultrasonic probe. First, ultrasonic images of the liver are taken from the body surface at intervals of about 30 sheets per second. And acquired a 3D image. It was considered possible to create an ultrasonic 3D image by using a magnetic sensor.

  7. Development of Highly-reliable and Low-power reconfigurable VLSI Based on Asynchronous architecture and Non-volatile memory

    Masanori Hariyama

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2018/03/31

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    We are aiming at the development of FPGA architecture for high reliability and low power based on the use of MRAM technology and asynchronous architecture. It is expected to be efficiently used for automotive, communication, big data application, and artificial intelligence. We develop architectures for various applications, and consider the FPGA architecture based on the MRAM and asynchronous technologies.

  8. Development of Heterogeneous-Computing Platform with Custom Accelerators for Embedded HPC Applications

    Hariyama Masanori, Waidyasooriya Hasitha Muthumala

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2012/04/01 - 2016/03/31

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    This research is aiming at design technologies for a heterogeneous computing platform consisting of CPU cores, GPUs, and FPGAs. FPGAs allows us to build the application-specific accelerators since it's datapath can be reconfigured by programming after fabrication. One major difficulty in designing the heterogeneous computing platform is to find task allocation maximizing the performance and to design the FPGA datapath as easily as possible. In order to solve this problem, we develop high-level synthesis technologies for the heterogeneous computing platform.

  9. Development of Surgery Navigation System Based on Real-time Intelligent Image Processing and Augmented Reality

    SHIMODA Mitsugi, HARIYAMA Masanori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Dokkyo Medical University

    2012/04/01 - 2015/03/31

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    In order to support liver surgery, we have developed technologies for 1) pre-operative planning using three-dimensional(3D) CT images, and 2) navigation exploiting Augmented-Reality (AR) where information from computers can be super-imposed onto real scene. In the conventional pre-operative planning, surgeons determine the resected region based on their empirical knowledge. To solve this problem, we have developed a method that finds the optimal resected region based on the geometrical relation between a tumor and liver vessels under the condition of patient’s liver function. This approach allows both of reducing the resected volume and preventing tumor metastasizing. Moreover, a navigation system has been developed using a see-through-type head-mount display that super-impose the 3-D content onto the patient’s abdomen, and a touch-less user interface to manipulate the 3-D content.

  10. Low-Power FPGA Based on Fine-grained Autonomous Supply-Voltage Control

    HARIYAMA Masanori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2009 - 2011

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    FPGAs attract much attention since their functions and interconnection network can be reconfigured by post-fabrication programming. However, their major problem is its large area and power consumption because of their high redundancy. In this research, we develop novel architecture that can control the supply voltage and threshold voltage of each look-up table so as to minimize the power consumption under the constraint of the processing time. Moreover, we develop architecture that can gate the power when LUTs do not work.

  11. Optimal VLSI Design for a Highly-Safe Intelligent Vehicle Based on a System Integration Theory

    KAMEYAMA Michitaka, HARIYAMA Masanori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2005 - 2007

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    Intelligent algorithms, advanced VLSI architectures and a system integration theory are studied to develop a highly-safe intelligent vehicle. (1) System-Application-Level Design Theory A real-world intelligent integrated system consists of three basic modules of environment recognition, prediction or estimation, and behavior planning. A system integration theory including derivation of performance specification is studied to bridge the gap between the various design levels as well as their VLSI-oriented intelligent algorithms. (2) Processing Module for Highly-Safe Intelligent Vehicles VLSI-oriented algorithms for road extraction, vehicle extraction and human extraction using 3-dimensional image information are developed. Moreover, motion estimation of a vehicle is done based on Bayesian Network The problem is equivalent to estimation of a driver's intention. The driver's intentions are hierarchically defined, so that the designed Bayesian Network becomes as simple as possible. Then, causal relation between the intentions is discussed to reflect the real-world motion process. (3) Optimal Design Theory of VLSI Processors for Intelligent Integrated Systems To achieve power minimization under a time/area constraint, high-level synthesis techniques are investigated based on scheduling and allocation. One typical example is a parallel VLSI for 3-dimensional image processing with optimal memory allocation which solves the data transfer bottleneck between processing elements and memory modules. (4) Reconfigurable VLSI Computing Fine-grained reconfigurable VLSIs for real-world applications superior to the conventional FPGAs are designed and implemented based on new architectures such as direct allocation of a control-data-flow graph, a bit-serial arithmetic operation, a dynamic control of power dissipation, and a logic-in-memory architecture utilizing nonvolatile devices.

  12. リアルワールド知能システム用超高速ステレオビジョンVLSIプロセッサの開発

    張山 昌論

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究(B)

    Institution: 東北大学

    2004 - 2006

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    安全性・セキュリティの確保などを重視した「人にやさしい情報社会」のためには,家庭用サービスロボット,高安全自動車などの人間を支援する知能システムが重要となる.このような知能システムを実現するためには,環境情報を高速に取得することが望まれる.最も重要な環境情報として,物体の3次元情報(位置,姿勢,形状)があげられる.そこで,本研究では,究極的高性能化のために,計算量最小化を指向したVLSI向きアルゴリズム,高性能・低消費電力プロセッサアーキテクチャ,先進回路技術 最適設計理論といった各階層における要素技術を確立・統合する.これにより,高信頼な3次元画像取得を数ミリ秒以下で行え,知能システムの実現が大きく促進される. 本年度は,前年度までに提案したウィンドウサイズを可変とする高信頼アルゴリズムとプロセッサアーキテクチャを基に,高安全自動車用道路抽出プロセッサの開発を行った.フィールドプログラマブルゲートアレイ(FPGA)を用いた実装により,マイクロプロセッサでの処理と比較して,数10倍の高速化が達成できることを示した. また,ステレオビジョンのさらなる高信頼化のために,3眼ステレオピジョン用プロセッサアーキテクチャを提案した.演算スケジュールを最適化することにより,2眼カメラのハードウェア量とほぼ同じハードウェア量・処理時間で3眼ステレオビジョンの処理を達成した.0.18μCMOSプロセスを用いて,32画素x32画素のサイズの入力画像,最大ウィンドウサイズ4x4に対するテストチップを試作した.その結果,動作周波数100MHzで1000フレーム/secで動作する見積もりを得た.

  13. リアルワールド応用低消費電力リコンフィギャラブルVLSIプロセッサの開発

    張山 昌論

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究(B)

    Institution: 東北大学

    2001 - 2002

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    安全性・セキュリティの確保などを重視した「人にやさしい情報杜会」を実現するためには,動的に変化するリアルワールド環境を自律的に認識し,人間を支援する知能システムを実現するためには,膨大なリアルワールド情報を瞬時に処理する高性能な専用VLSIプロセッサの構成が望まれる.従来の専用プロセッサの開発方法は,(1)フルカスタム方式,(2)FPGA(書き換え可能ゲートアレイ)を用いた方法に大別される.フルカスタム方式,すなわちASICで実現するアプローチでは,開発コストが高く、よほど大量のチップが市場に出荷されることでなければ、現実性に乏しい.一方,従来のFPGAを用いた方法では,ユーザープログラムにより機能を変更できるため低コスト化が可能である.しかしながら,演算器間の相互結合網が複雑であるため演算器間の通信時間がボトルネックとなる,メモリを用いて等価的に演算器を実現しているため性能が大幅に低下するなどの問題がある. このような問題を解決するために,本研究では,応用に応じて最適な並列構造を再構成できるリコンフィギャラブルVLSIプロセッサの開発を行う.本年度は,高性能化を指向したリコンフィギャラブルVLSIプロセッサのアーキテクチャとして,演算器稼働率を高めるためのビットシリアルメモリベースセルを提案した.メモリベーストセルを用いない場合に比べ2倍程度の高性能化を達成できることを明らかにした.

  14. Development of VLSI Processor Chip Family for Highly-Safe Intelligent Vehicles Based on Optimal Design Mythologies

    KAMEYAMA Michitaka, HARIYAMA Masanori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2000 - 2002

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    Intelligent vehicle applications are expected to be one of promising future system LSI applications. If these applications become realistic, any real-worldapplications will be posslit1e. As typical case studies, intelligent vehicle applications are useful to develop a high-level synthesis methology of system LSI. From the point of view, the following technologies are studied 1. VLSI chip family for intelligent vehicles The highest performance VLSI chip family is developed for highly-safe intelligent vehicles. These are VLSI processors for stereo vision, optical-flow extraction, path planning and trajectory perdition based on probabilistic inference. These VLSI-oriented algorithms are also discussed to reduce the computational complexity. Moreover, a high-performance field-programmable VLSI which is very superior to the conventional FPGAS is developed 2. System integration and intelligent algorithms Sensing of environment information and prediction of the dynamic change are very important technologies to realize real-world applications. A system integration methology is developed considering measurement and prediction errors. The condition of a sampling period is discussed based on a real-world signal processing model. 3. Design theory of VLSI processors One of the most serious problems in recent VLSI systems is large delay due to interconnection complexity between memories and processing elements. To solve the problem, a parallel processing module composed of a processing element and a local memory is defined as a basic building block to make interconnection delay as small as possible. Still, there exists propagation delay for data transfer between the modules. A high-level synthesis method considering the data transfer time is discussed on the hardware model, when a data-dependency graph corresponding to a processing algorithm is given. We must simultaneously consider both scheduling and allocation for the time optimization problem under a constraint of achip area. A branch and bound method and a genetic algorithm are effectively employed to find an optimum solution. Extension of the above methologies is also considered to solve the following general problems ・Minimization of processing under chip area constraint ・Minimization of chip area under processing time constraint ・Minimization of dissipation energy under processing time and chip area constraint

  15. Reconfigurable Architecture and its applications Competitive

    System: The Other Research Programs

    2000/04 -

  16. Implementation of a One-Transistor Multiple-Valued Content-Addressalbe Memory and Its Application

    HANYU Takahiro, KAMEYAMA Michitaka

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B).

    Institution: Tohoku Univesity

    1997 - 2000

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    Communication bottleneck between memory and logic modules is one of the most serious problems in the multimedia VLSI systems on a chip. A logic-in-memory structure, in which logic-circuit elements are distributed over a memory-cell array, is a key technology to solve the above problem. A content-addressable memory (CAM) is one of the typical logic-in-memory VLSIs. However, CAMs have been more complex to build and had lower storage density than a normal memory such as RAMs because of the overhead involved in the storage and logic elements. In this project, a high-performance multiple-valued CAM based on floating-gate-MOS pass-transistor logic is proposed to perform highly parallel magnitude comparisons in a limited chip area. Multiple-valued stored data in the proposed CAM correspond to the threshold voltage of a floating-gate MOS transistor, so that the CAM cell circuit can be designed by using only a single MOS transistor. Moreover, a logic-in-memory VLSI architecture based on such a multiple-valued floating-gate-MOS pass-transistor network is also proposed to realize parallel arithmetic and logic circuits with multiple-valued inputs and binary outputs. The main results of this project are listed below : (1) Highly Parallel Magnitude-Comparison Hardware Algorithm for CAMs, (2) Logic-in-Memory VLSI Architecture Using Floating-Gate MOS-Based Multiple-Valued Pass-Transistor Network, (3) Functional Pass Gate Based on Ferroelectric Devices and Their Application, (4) Current/Voltage-Hybrid-Mode Multiple-Valued Integrated Circuits.

  17. 面積・時間積最小化に基づく最高性能知能集積システム用VLSIプロセッサの開発

    張山 昌論

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東北大学

    1998 - 1999

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    本研究では,高安全自動車や家庭用サービスロボットなどにおいて重要となる,自動車(またはロボット)と障害物の衝突をチェックする衝突チェックVLSIプロセッサを開発し,それに基づいた衝突警報システムを構築し,その総合的評価を行うことを目的としている.このような目的のために,本年度は以下の成果を得た. 1.計算量の少ないVLSI向き衝突チェックアルゴリズムの確立 VLSIでの実現のためには,処理の規則性・並列性が重要となる.そこで,計算量を減少しつつ並列処理にも適合する衝突チェックアルゴリズムを提案した.自動車の表面離散点情報の表現法として精密な直方体表現と,大枠直方体表現を用いる階層的直方体表現を提案した.この表現を用いることにより,チェックの精度を段階的に高めることにより,計算量を大幅に減少できる. 2.面積・時間積最小化に基づく最適設計のための連想メモリの開発 前年度の研究により研究者が提案した並列性の高いVLSI向きアルゴリズムに基づいた稼働率100%の負荷分散型の並列アーキテクチャでは,全体の最適設計,例えば,面積制約下での処理時間最小化は,1個の処理要素(PE)の面積・時間積に帰着されることを見いだしている.そこで,照合演算を並列に行う連想メモリの面積・時間積最小化を実現するためのアーキテクチャとして,メモリの各ワードを複数の照合回路により共有したマルチポート連想メモリを提案した.このアーキテクチャではメモリセルの稼働率を高めることにより、同等の面積で従来の連想メモリの数倍の性能を達成できることが確認された. 3.衝突チェックVLSIプロセッサの基本回路のフルカスタム試作・評価 衝突チェックVLSIプロセッサの基本回路として,128ワード連想メモリとPEを0.5μmCMOS設計ルールにより試作した.動作周波数50MHzまでの動作が確認され,その性能は従来の汎用ワークステーションと比較して3桁以上高いことが実証された.

  18. Development of a Chip Family for Ultra-Highly-Parallel Multiple-Valued Integrated Circuits and Its Applications

    KAMEYAMA Michitaka, HARIYAMA Masanori, HANYU Takahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: TOHOKU UNIVERSITY

    1997 - 1999

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    In this study, hardware algorithms for highly parallel arithmetic circuits, logic-in-memory VLSI architecture, and low-power, high-speed multiple-valued integrated circuits are considered in detail. The usefulness of the multiple-valued integrated circuits based on level multiplexing is established, and we can develop fundamental technology of a multiple-valued chip family. The major results of this research are shown below: 1. Design of highly-parallel multiple-valued arithmetic and logic circuits The following three method are proposed to find code assignment for ultimately parallel multiple-valued operation circuits. When a functional specification of a k-ary operation is given by mapping relationship between input and output symbols. (1) Reed-Muller expansion by a sparse matrix, (2) Partion theory, and (3) Hierarchical code assignment using hot codes etc. 2. Development of current-mode multiple-valued integrated circuits The use of a differential logic circuit with a pair of dual-rail inputs makes the input voltage swing small, which results in a high driving capability at a lower supply voltage. The optimal circuit design is further considered to improve the performance with lower power dissipation. It is made clear that the use of two supply voltages is very useful for the improvement. Moreover, we developed asynchronous and self-checking design methods for the multiple-valued VLSI. As a result, we can obtain fundamental technology for the next-generation multiple-valued VLSI system. 3. Development of logic-in-memory multiple-valued VLSI system A new logic-in-memory VLSI architecture based on multiple-valued floating-gate-MOS pass logic is proposed to solve communication bottleneck between memory and logic modules. A multiple-valued sorted data is represented by a threshold voltage of the floating-gate-MOS transistor, so that a single floating-gate MOS transistor is effectively employed for merging a threshold-literal and a pass-switch function. As a typical example of the logic-in-memory VLSI, a fully parallel magnitude compartor is developed. The performance of the proposed VLSI is about 26 times higher than that of a corresponding binary implementation. Moreover, its effective chip area and power dissipation are reduced to about 42% and 20%, respectively.

  19. High-Level Synthesis of High-Performance VLSI Processors for Intelligent Integrated System

    KAMEYAMA Michitaka, HARIYAMA Masanori, HANYU Takahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: TOHOKU UNIVERSITY

    1997 - 1999

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    Real-world applications need to achieve very quick response for dynamically changing real-world environment. As broad typical examples of the real-world applications, highly-safe systems, robot systems and multimedia systems are considered, and High-level synthesis for their VLSI processors are studied. An optimization problem such that an objective function corresponding to a certain physical factor is discussed under physical constraints in the high-level synthesis. Our approach for the high-level synthesis starts from concrete applications. They are a stereo vision VLSI processor, a collision detection VLSI processor and a path-planning VLSI processor. First, we considered a VLSI-oriented algorithm for each application. Then, optimal structure of arithmetic and logic blocks are derived from the view points of performances and chip areas. The major results are shown below: 1. To design high performance VLSI processors in deep-submicron age, it is required to find the architecture such that there is no effect on interconnection delay in parallel data transfer between memories and arithmetic modules. For the high-speed and efficient parallel data transfer, an optimal allocation method is developed, and it is applied to design of a stereo vision VLSI processor. The evaluation shows that the performance is greatly increased over the conventional architecture. 2. As a collision detection VLSI processor, we proposed a VLSI-oriented algorithm based on hierarchically iteration of coordinate transformation and matching operation. It is confirmed by implementation of the chip that Read-only content addressable memory and bit-serial pipeline architecture make the performance of the VLSI processor very high. 3. As an intelligent robot which works autonomously in unknown environment, we proposed a fast path planning algorithm to find a feasible collision-free path. One of the most promising configuration is selected according to a distance between every point in free space and the nearest obstacle. The configuration selection keeps a robot as far away as possible from obstacles, and reduces the number of configurations for collision detection. Moreover, a highly-parallel processor based on logic-in-memory architecture and redundancy of processing elements is proposed to overcome a transfer bottleneck between memory and processing elements.

  20. Highly-Safe Intelligent Integrated System Competitive

    1993/08 -

  21. Robot Electronics System Competitive

    1993/08 -

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