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Toru Abe

Section

Cyberscience Center

Job title

Associate Professor

Degree

工学博士（東北大学）
工学修士（東北大学）

researchmap

https://researchmap.jp/read0092485

J-GLOBAL ID

200901025670963994

Committee Memberships 2

情報処理学会東北支部　広報幹事

2008/05 - 2010/04
情報処理学会東北支部　広報幹事

2008/05 - 2010/04

Professional Memberships 3

IPSJ
IEEE
IEICE

Research Interests 3

knowledge engineering
image understanding
pattern recognition

Research Areas 2

Informatics / Intelligent robotics /
Informatics / Intelligent informatics /

Awards 1

IEEE 7th Int. Conf. BioInformatics & BioEngineering, BIBE2007, Second Best Poster Award

2007/10/24　IEEE 7th Int. Conf. BioInformatics & BioEngineering, Poster judgeing committee　Chromosome region extraction and classification with local band patterns

Papers 133

Estimating City Microclimate using a Combination of Fixed and Mobile Sensors

Wataru Kunimi, Yuki Ito, Shunsuke Tomii, Toru Abe, Takuo Suganuma

GCCE 2024 - 2024 IEEE 13th Global Conference on Consumer Electronics　506-507　2024

DOI： 10.1109/GCCE62371.2024.10760249 　
NeO-Domotics: Network Operation for Domotics.

Luis Guillen, Tomofumi Kondo, Satoru Izumi, Toru Abe, Takuo Suganuma

GCCE　1131-1132　2023

DOI： 10.1109/GCCE59613.2023.10315318 　
An Energy Efficient SDN Controller Placement with Delay Constraints.

Tomofumi Kondo, Luis Guillen, Satoru Izumi, Toru Abe, Takaaki Mizuki, Takuo Suganuma

APNOMS　119-124　2023
An SDN-Based Moving Target Defense as a Countermeasure to Prevent Network Scans

Shoya CHIBA, Luis GUILLEN, Satoru IZUMI, Toru ABE, Takuo SUGANUMA

IEICE Transactions on Communications　E105.B　(11)　1400-1407　2022/11/01
Publisher: Institute of Electronics, Information and Communications Engineers (IEICE)
DOI： 10.1587/transcom.2021tmp0020 　

ISSN： 0916-8516

eISSN： 1745-1345
Design of a Network Scan Defense Method by Combining an SDN-Based MTD and IPS_

Shoya Chiba, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

IEICE Proceeding Series　67　273-278　2021/09/08
Publisher: The Institute of Electronics, Information and Communication Engineers
DOI： 10.34385/proc.67.ts7-3 　

eISSN： 2188-5079

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This paper proposes a Software-Defined Network (SDN)-based Moving Target Defense (MTD) mechanism to pro- tect the network from potential scans. The proposed mechanism can work in combination with an IPS without affecting its normal behavior. To do so, an SDN controller changes the packets’ headers passing through switches using virtual IP addresses while the operation of IPS continues monitoring the devices’ actual IP addresses. Preliminary results in an emulated environment show that it is possible to achieve a seamless collaboration between the MTD and IDS to detect low and high-rate scans.
A Resilient Mechanism for Multi-Controller Failure in Hybrid SDN-Based Networks_

Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

IEICE Proceeding Series　67　285-290　2021/09/08
Publisher: The Institute of Electronics, Information and Communication Engineers
DOI： 10.34385/proc.67.ts8-1 　

eISSN： 2188-5079

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SDN is an emerging network paradigm whose main characteristic is the separation of the Control from the Data Plane, allowing the implementation of innovative, robust, and flexible ways to program networks. Moreover, SDN has recently extended its coverage to Hybrid wired and/or wireless environ- ments. However, SDN-enabled devices must be connected to a controller (i.e., a central entity) to be programmable. Therefore, if multiple controllers fail in a short period, regardless of the ample resource availability in Hybrid SDN environments, the whole network infrastructure, and the overall service are compromised. This article presents a mechanism capable of handling multi- controller failure in SDN by considering the hybrid nature of the infrastructure and the scale of the failure. Preliminary results show that by applying the proposed mechanism, it is possible to increase the device’s controller coverage by up to 70% even if half of the controllers are unavailable compared to conventional approaches.
A Hierarchy-Based System for Recognizing Customer Activity in Retail Environments

Jiahao Wen, Luis Guillen, Toru Abe, Takuo Suganuma

Sensors　21　(14)　4712-4712　2021/07/09
Publisher: MDPI AG
DOI： 10.3390/s21144712 　

eISSN： 1424-8220

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Customer activity (CA) in retail environments, which ranges over various shopper situations in store spaces, provides valuable information for store management and marketing planning. Several systems have been proposed for customer activity recognition (CAR) from in-store camera videos, and most of them use machine learning based end-to-end (E2E) CAR models, due to their remarkable performance. Usually, such E2E models are trained for target conditions (i.e., particular CA types in specific store spaces). Accordingly, the existing systems are not malleable to fit the changes in target conditions because they require entire retraining of their specialized E2E models and concurrent use of additional E2E models for new target conditions. This paper proposes a novel CAR system based on a hierarchy that organizes CA types into different levels of abstraction from lowest to highest. The proposed system consists of multiple CAR models, each of which performs CAR tasks that belong to a certain level of the hierarchy on the lower level’s output, and thus conducts CAR for videos through the models level by level. Since these models are separated, this system can deal efficiently with the changes in target conditions by modifying some models individually. Experimental results show the effectiveness of the proposed system in adapting to different target conditions.
NFV-GUARD: Mitigating Flow Table-Overflow Attacks in SDN Using NFV

Mustafa Soylu, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

2021 IEEE 7th International Conference on Network Softwarization (NetSoft)　2021/06/28
Publisher: IEEE
DOI： 10.1109/netsoft51509.2021.9492584 　
A proposal of port scan detection method based on Packet‐In Messages in OpenFlow networks and its evaluation

Daichi Ono, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

International Journal of Network Management　2021/06/23
Publisher: Wiley
DOI： 10.1002/nem.2174 　

ISSN： 1055-7148

eISSN： 1099-1190
A Study on Heterogeneous Network Switching Time in IoT Environments Using SDN.

Ryoya Nozaki, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

10th IEEE Global Conference on Consumer Electronics(GCCE)　859-860　2021
Publisher: IEEE
DOI： 10.1109/GCCE53005.2021.9622084 　
A Resilient Mechanism for Multi-Controller Failure in Hybrid SDN-based Networks.

Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

22nd Asia-Pacific Network Operations and Management Symposium(APNOMS)　285-290　2021
Publisher: IEEE
DOI： 10.23919/APNOMS52696.2021.9562671 　
Design of a Network Scan Defense Method by Combining an SDN-based MTD and IPS.

Shoya Chiba, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

22nd Asia-Pacific Network Operations and Management Symposium(APNOMS)　273-278　2021
Publisher: IEEE
DOI： 10.23919/APNOMS52696.2021.9562686 　
A Visual Monitoring Method for Infants in a Room

Takumi Ohnuki, Toru Abe, Takuo Suganuma

2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020　258-259　2020/10/13
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/GCCE50665.2020.9292074 　
A design of port scan detection method based on the characteristics of packet-in messages in openflow networks

Daichi Ono, Satoru Izumi, Toru Abe, Takuo Suganuma

APNOMS 2020 - 2020 21st Asia-Pacific Network Operations and Management Symposium: Towards Service and Networking Intelligence for Humanity　120-125　2020/09/01
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.23919/APNOMS50412.2020.9237012 　
Pedestrian tracking with occlusion state estimation

Akihiro Enomura, Toru Abe, Takuo Suganuma

VISIGRAPP 2020 - Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications　4　704-713　2020
Publisher: SciTePress
A method for detecting human-object interaction based on motion distribution around hand

Tatsuhiro Tsukamoto, Toru Abe, Takuo Suganuma

VISIGRAPP 2020 - Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications　5　462-469　2020
Publisher: SciTePress
An Event-Based Hierarchical Method for Customer Activity Recognition in Retail Stores

Jiahao Wen, Luis Guillen, Muhammad Alfian Amrizal, Toru Abe, Takuo Suganuma

Advances in Visual Computing　263-275　2020
Publisher: Springer International Publishing
DOI： 10.1007/978-3-030-64556-4_21 　

ISSN： 0302-9743

eISSN： 1611-3349
On Designing a Resilient SDN C/M-Plane for Multi-Controller Failure in Disaster Situations

Luis Guillen, Hiroyuki Takahira, Satoru Izumi, Toru Abe, Takuo Suganuma

IEEE Access　8　141719-141732　2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
DOI： 10.1109/access.2020.3013323 　

eISSN： 2169-3536
Estimation of power consumption of ICT devices based on network traffic

Hayato Abe, Misumi Hata, Muhammad Alfian Amrizal, Satoru Izumi, Toru Abe, Takuo Suganuma

2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019　1047-1048　2019/10/01
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/GCCE46687.2019.9015288 　
Design and implementation of AR-Supported system for piano learning

Minya Cai, Muhammad Alfian Amrizal, Toru Abe, Takuo Suganuma

2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019　49-50　2019/10/01
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/GCCE46687.2019.9015530 　
Design of an ar-based system for group piano learning

Minya Cai, Muhammad Alfian Amrizal, Toru Abe, Takuo Suganuma

Adjunct Proceedings of the 2019 IEEE International Symposium on Mixed and Augmented Reality, ISMAR-Adjunct 2019　20-21　2019/10/01
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/ISMAR-Adjunct.2019.00020 　
SAND/3: SDN-Assisted Novel QoE Control Method for Dynamic Adaptive Streaming over HTTP/3 Peer-reviewed

Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

Electronics 2019　8　(8)　1-17　2019/08
Publisher: MDPI AG
DOI： 10.3390/electronics8080864 　

eISSN： 2079-9292

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Dynamic Adaptive Streaming over HTTP (DASH) is a widely used standard for video content delivery. Video traffic, most of which is generated from mobile devices, is shortly to become the most significant part of Internet traffic. Current DASH solutions only consider either client- or server-side optimization, leaving other components in DASH (e.g., at the transport layer) to default solutions that cause a performance bottleneck. In that regard, although it is assumed that HTTP must be necessarily transported on top of TCP, with the latest introduction of HTTP/3, it is time to re-evaluate its effects on DASH. The most substantial change in HTTP/3 is having Quick UDP Internet Connections (QUIC) as its primary underlying transport protocol. However, little is still know about the effects on standard DASH client-based adaption algorithms when exposed to the future HTTP/3. In this paper, we present SAND/3, an SDN (Software Defined Networking)-based Quality of Experience (QoE) control method for DASH over HTTP/3. Since the official deployment of HTTP/3 has not been released yet, we used the current implementation of Google QUIC. Preliminary results show that, by applying SAND/3, which combines information from different layers orchestrated by SDN to select the best QoE, we can obtain steadier media throughput, reduce the number of quality shifts in at least 40%, increase the amount downloaded content at least 20%, and minimize video interruptions compared to the current implementations regardless of the client adaption algorithm.
OpenFlow Based Information Flow Control Considering Route Switching Cost Peer-reviewed

Kosuke Gotani, Hiroyuki Takahira, Misumi Hata, Luis Guillen, Satoru Izumi, Toru Abe

The 2nd IEEE International Workshop on Information Flow Oriented Approaches in Internet of Things and Cyber-Physical Systems (InfoFlow 2019, COMPSAC Workshop)　527-530　2019/07
Publisher: IEEE
DOI： 10.1109/compsac.2019.10260 　
Basic Design of Network Control Method Based on Disaster Risk of OpenFlow C/M-Plane Peer-reviewed

Satoru Izumi, Hiroyuki Takahira, Kosuke Gotani, Misumi Hata, Luis Guillen, Toru Abe, Takuo Suganuma

The IEEE 43rd Annual Computer Software and Applications Conference (COMPSAC 2019, Fast Abstract)　958-959　2019/07
Publisher: IEEE
DOI： 10.1109/compsac.2019.00160 　
災害発生直後における被災の影響とデータ伝送量を考慮したネットワーク制御手法の提案とその評価 Peer-reviewed

高平寛之, 畑美純, ギリエルイス, 和泉諭, 阿部亨, 菅沼拓夫

情報処理学会論文誌　60　(3)　738-749　2019/03
A Proposal of Control Method Considering the Path Switching Time of SDN and Its Evaluation

Kosuke Gotani, Hiroyuki Takahira, Misumi Hata, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

Advances in Science, Technology and Engineering Systems Journal　4　(4)　388-393　2019
Publisher: ASTES Journal
DOI： 10.25046/aj040447 　

ISSN： 2415-6698

eISSN： 2415-6698
A Telexistence System Using Remote Control Robot and Omnidirectional Camera with QoE Control

Hayato Abe, Makoto Miura, Toru Abe, Takuo Suganuma

2018 IEEE 7th Global Conference on Consumer Electronics, GCCE 2018　831-833　2018/12/12
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/GCCE.2018.8574612 　
Design of an SDN Control Method Considering the Path Switching Time under Disaster Situations

Kosuke Gotani, Hiroyuki Takahira, Misumi Hata, Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma

2018 5th International Conference on Information and Communication Technologies for Disaster Management (ICT-DM)　2018/12
Publisher: IEEE
DOI： 10.1109/ict-dm.2018.8636384 　
SDN Based End-to-End Inter-Domain Routing Mechanism for Mobility Management and Its Evaluation Peer-reviewed

Misumi Hata, Mustafa Soylu, Satoru Izumi, Toru Abe, Takuo Suganuma

Sensors 2018　18　(12)　1-14　2018/12
SDN-based Network Control Method for Distributed Storage Systems Peer-reviewed

Luis Guillen, Satoru Izumi, Toru Abe, Hiroaki Muraoka, Takuo Suganuma

Advances in Science, Technology and Engineering Systems Journal　3　(5)　140-150　2018/09
Publisher: ASTES Journal
DOI： 10.25046/aj030518 　

eISSN： 2415-6698
Infrastructure-less communication platform for off-the-shelf android smartphones Peer-reviewed

Takuma Oide, Toru Abe, Takuo Suganuma

Sensors (Switzerland)　18　(3)　2018/03/04
Publisher: MDPI AG
DOI： 10.3390/s18030776 　

ISSN： 1424-8220
SDN implementation of multipath discovery to improve network performance in distributed storage systems Peer-reviewed

Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma, Hiroaki Muraoka

2017 13th International Conference on Network and Service Management, CNSM 2017　2018-　1-4　2018/01/12
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.23919/CNSM.2017.8256054 　
Design of SDN based end-to-end routing over multiple domains for mobility management Peer-reviewed

Misumi Hata, Mustafa Soylu, Satoru Izumi, Toru Abe, Takuo Suganuma

2017 13th International Conference on Network and Service Management, CNSM 2017　2018-　1-4　2018/01/12
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.23919/CNSM.2017.8256056 　
SDN-based hybrid server and link load balancing in multipath distributed storage systems. Peer-reviewed

Luis Guillen, Satoru Izumi, Toru Abe, Takuo Suganuma, Hiroaki Muraoka

2018 IEEE/IFIP Network Operations and Management Symposium, NOMS 2018, Taipei, Taiwan, April 23-27, 2018　1-6　2018
Publisher: IEEE
DOI： 10.1109/NOMS.2018.8406286 　
A design of SDN based IP mobility management considering inter-domain handovers and its evaluation Peer-reviewed

Misumi Hata, Mustafa Soylu, Satoru Izumi, Toru Abe, Takuo Suganuma

Adv. Sci. Technol. Eng. Syst. J.　2　(3)　922-931　2017/06/01
Implementation and evaluation of negotiation mechanism on server-less IoT application platform Peer-reviewed

Takuma Oide, Toru Abe, Takuo Suganuma

Proc. the 2nd Int. Workshop Internet Agents (IoA, AAMAS2017 Workshop)　36-55　2017/05/01
SDN Based Multipath Control Method for Distributed Storage Systems

Guillen Luis, Izumi Satoru, Abe Toru, Suganuma Takuo, Muraoka Hiroaki

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2017　151-151　2017
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2017.0_151 　
A Study on SDN Based End-to-end Routing Mechanism for Mobility Management in Multiple Domain Networks

Soylu Mustafa

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2017　150-150　2017
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2017.0_150 　
User-oriented video streaming service based on passive aggressive learning Peer-reviewed

Makoto Oide, Akiko Takahashi, Toru Abe, Takuo Suganuma

Int. J. Software Sci. Comput. Intell.　9　(1)　35-53　2017/01/01
A proposal of SDN based disaster-aware smart routing for highly-available information storage systems and its evaluation Peer-reviewed

Satoru Izumi, Misumi Hata, Hiroyuki Takahira, Mustafa Soylu, Asato Edo, Toru Abe, Takuo Suganuma

Int. J. Software Sci. Comput. Intell.　9　(1)　68-82　2017/01/01
A proposal of disaster-risk-aware network routing control method and its evaluation Peer-reviewed

Asato Edo, Satoru Izumi, Toru Abe, Takuo Suganuma

IEEJ Transactions on Electronics, Information and Systems　137　(3)　532-541　2017
Publisher: Institute of Electrical Engineers of Japan
DOI： 10.1541/ieejeiss.137.532 　

ISSN： 1348-8155 0385-4221
A control mechanism for live migration with data regulations preservation Peer-reviewed

Toshihiro Uchibayashi, Yuichi Hashi, Seira Hidano, Shinsaku Kiyomoto, Bernady Apduhan, Toru Abe, Takuo Suganuma, Masahiro Hiji

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)　10404　509-522　2017
Publisher: Springer Verlag
DOI： 10.1007/978-3-319-62392-4_37 　

ISSN： 1611-3349 0302-9743
COSAP: Contract-Oriented Sensor-Based Application Platform Peer-reviewed

Takuma Oide, Toru Abe, Takuo Suganuma

IEEE ACCESS　5　8261-8275　2017

DOI： 10.1109/ACCESS.2017.2696027 　

ISSN： 2169-3536
A parallel method for voxel-based multiview stereo Peer-reviewed

Masaru Fukushi, Yudai Tateishi, Toru Abe

IIEEJ Trans. Image Electron. Visual Comput.　4　(2)　136-144　2016/12/01
Publisher: The Institute of Image Electronics Engineers of Japan
ISSN： 2188-191X
Data flow control with SDN based mobility management Peer-reviewed

Misumi Hata, Mustafa Soylu, Satoru Izumi, Toru Abe, Takuo Suganuma

AEARU: 11th Web Technology and Computer Science Workshop 2016 (WTCS2016) - Computer Science and Data Science　31-32　2016/09/01
Region extraction of moving objects in dynamic background images Peer-reviewed

Yuya Kasahara, Toru Abe, Takuo Suganuma

AEARU: 11th Web Technology and Computer Science Workshop 2016 (WTCS2016) - Computer Science and Data Science　39-40　2016/09/01
Region extraction of multiple moving objects with image and depth sequence Peer-reviewed

Katsuya Sugawara, Ryosuke Tsuruga, Toru Abe, Takuo Suganuma

Proc. the 11th Int. Conf. Comput. Vision Theory Appl. (VISAPP2016)　255-262　2016/02/28
Basic Design of SDN Based Mobility Management for Multiple Domain Networks

Soylu Mustafa

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2016　19-19　2016
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2016.0_19 　
Fundamental Study of Resilient Routing for Urgent Situation after disaster Based on SDN

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2016　17-17　2016
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2016.0_17 　
Implementation of D2D Wireless Network Control Based on SDN

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2016　18-18　2016
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2016.0_18 　
Basic Design of A Sensor Position Estimation Method Using UAV for Outdoor WSN Management

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2016　16-16　2016
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2016.0_16 　
Hand Detection Using Convolutional Neural Network

Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan　2016　5-5　2016
Publisher: Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan
DOI： 10.11528/tsjc.2016.0_5 　
A Broker-less Participatory Sensing Scheme by User Matching Mechanism Based on Market Price Approach Peer-reviewed

Takuma Oide, Toru Abe, Takuo Suganuma

2016 IEEE INTERNATIONAL CONFERENCE ON PERVASIVE COMPUTING AND COMMUNICATION WORKSHOPS (PERCOM WORKSHOPS)　233-238　2016

DOI： 10.1109/PERCOMW.2016.7457104 　
Performance Evaluation of SDN Based Smart Routing for Disaster-resistant Storage Systems Peer-reviewed

Satoru Izumi, Asato Edo, Toru Abe, Takuo Suganuma

PROCEEDINGS 2016 5TH IIAI INTERNATIONAL CONGRESS ON ADVANCED APPLIED INFORMATICS IIAI-AAI 2016　965-970　2016

DOI： 10.1109/IIAI-AAI.2016.184 　
Design and Implementation of User-oriented Video Streaming Service based on Machine Learning Peer-reviewed

Makoto Oide, Akiko Takahashi, Toru Abe, Takuo Suganuma

2016 IEEE 15TH INTERNATIONAL CONFERENCE ON COGNITIVE INFORMATICS & COGNITIVE COMPUTING (ICCI*CC)　111-116　2016

DOI： 10.1109/ICCI-CC.2016.7862023 　
Disaster-Aware Smart Routing Scheme based on Symbiotic Computing for Highly-available Information Storage Systems Peer-reviewed

Satoru Izumi, Asato Edo, Toru Abe, Takuo Suganuma

2016 IEEE 15TH INTERNATIONAL CONFERENCE ON COGNITIVE INFORMATICS & COGNITIVE COMPUTING (ICCI*CC)　137-142　2016

DOI： 10.1109/ICCI-CC.2016.7862026 　
A Proposal of SDN Based Mobility Management in Multiple Domain Networks Peer-reviewed

Misumi Hata, Satoru Izumi, Toru Abe, Takuo Suganuma

2016 18TH ASIA-PACIFIC NETWORK OPERATIONS AND MANAGEMENT SYMPOSIUM (APNOMS)　1-4　2016

DOI： 10.1109/APNOMS.2016.7737263 　
Proposal of Dynamic Information Flow Management Method Under Disaster Situations Peer-reviewed

Satoru Izumi, Misumi Hata, Hiroyuki Takahira, Asato Edo, Toru Abe, Takuo Suganuma

ADJUNCT PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON MOBILE AND UBIQUITOUS SYSTEMS: COMPUTING NETWORKING AND SERVICES (MOBIQUITOUS 2016)　18-23　2016

DOI： 10.1145/3004010.3006381 　
Robust Region Extraction of Moving Objects in Dynamic Background Peer-reviewed

Shun Mori, Yuya Kasahara, Toru Abe, Takuo Suganuma

2016 23RD INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION (ICPR)　1971-1976　2016

DOI： 10.1109/ICPR.2016.7899925 　

ISSN： 1051-4651
A Design of Contract-oriented Sensor Application Platform Peer-reviewed

Takuma Oide, Toru Abe, Takuo Suganuma

2015 IEEE INTERNATIONAL CONFERENCE ON PERVASIVE COMPUTING AND COMMUNICATION WORKSHOPS (PERCOM WORKSHOPS)　172-177　2015
Data Management Scheme to Enable Efficient Analysis of Sensing Data for Smart Community Peer-reviewed

Yuichi Hashi, Kazuyoshi Matsumoto, Yoshinori Seki, Masahiro Hiji, Toru Abe, Takuo Suganuma

IEEE 39TH ANNUAL COMPUTER SOFTWARE AND APPLICATIONS CONFERENCE WORKSHOPS (COMPSAC 2015), VOL 3　182-187　2015

DOI： 10.1109/COMPSAC.2015.233 　

ISSN： 0730-3157
Design and Implementation of Data Management Scheme to Enable Efficient Analysis of Sensing Data Peer-reviewed

Yuichi Hashi, Kazuyoshi Matsumoto, Yoshinori Seki, Masahiro Hiji, Toru Abe, Takuo Suganuma

2015 IEEE INTERNATIONAL CONFERENCE ON AUTONOMIC COMPUTING　319-324　2015

DOI： 10.1109/ICAC.2015.58 　
An Adaptive Multipath Routing Scheme based on SDN for Disaster-resistant Storage Systems Peer-reviewed

Satoru Izumi, Asato Edo, Toru Abe, Takuo Suganuma

2015 10TH INTERNATIONAL CONFERENCE ON BROADBAND AND WIRELESS COMPUTING, COMMUNICATION AND APPLICATIONS (BWCCA 2015)　478-483　2015

DOI： 10.1109/BWCCA.2015.73 　
Design and Implementation of SDN-based Smart Routing for Disaster-resistant File Transfer Peer-reviewed

Satoru Izumi, Asato Edo, Toru Abe, Takuo Suganuma

The 3rd Asian Conference on Information Systems (ACIS2014)　560-565　2014/12
A QoS Control Method for Camera Network based People Detection Systems Peer-reviewed

Toru Abe, Adrian Agusta, Yuto Mitsuhashi, Takuo Suganuma

PROCEEDINGS OF THE 2014 9TH INTERNATIONAL CONFERENCE ON COMPUTER VISION, THEORY AND APPLICATIONS (VISAPP 2014), VOL 3　242-248　2014
A Flexible Selection of Internet Connections based on Network Expert Knowledge Peer-reviewed

Jin Ito, Asato Edo, Satoru Izumi, Toru Abe, Takuo Suganuma

2014 IEEE 13TH INTERNATIONAL CONFERENCE ON COGNITIVE INFORMATICS & COGNITIVE COMPUTING (ICCI-CC)　251-257　2014

DOI： 10.1109/ICCI-CC.2014.6921468 　
A Memory Efficient Parallel Method for Voxel-based Multiview Stereo Peer-reviewed

Yudai Tateishi, Masaru Fukushi, Toru Abe

2014 SECOND INTERNATIONAL SYMPOSIUM ON COMPUTING AND NETWORKING (CANDAR)　367-372　2014

DOI： 10.1109/CANDAR.2014.101 　
Development of an energy saving lighting control system based on an inverse problem solving for light diming Peer-reviewed

Shinji Kitagami, Yosuke Kaneko, Toru Abe, Hisao Koizumi, Takuo Suganuma

IEEJ Transactions on Electronics, Information and Systems　133　(3)　642-651　2013
Publisher: Institute of Electrical Engineers of Japan
DOI： 10.1541/ieejeiss.133.642 　

ISSN： 1348-8155 0385-4221
Primitive Human Action Recognition Based on Partitioned Silhouette Block Matching Peer-reviewed

Toru Abe, Masaru Fukushi, Daisuke Ueda

ADVANCES IN VISUAL COMPUTING, PT II　8034　308-317　2013

DOI： 10.1007/978-3-642-41939-3_30 　

ISSN： 0302-9743
Autonomous control method using AI planning for energy-efficient network systems Peer-reviewed

Kouta Awahara, Satoru Izumi, Toru Abe, Takuo Suganuma

Proceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013　628-633　2013

DOI： 10.1109/BWCCA.2013.111 　
A design of state acquisition function using range image sensor for 3D symbiotic space Peer-reviewed

Takuya Kawamura, Toru Abe, Takuo Suganuma

Proceedings - 2013 8th International Conference on Broadband, Wireless Computing, Communication and Applications, BWCCA 2013　622-627　2013

DOI： 10.1109/BWCCA.2013.110 　
PARALLELIZATION OF VOXEL BASED MULTIVIEW STEREO FOR ARBITRARILY CONFIGURED VIEWPOINTS Peer-reviewed

Masaru Fukushi, Naoki Sekiguchi, Toru Abe

2012 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP 2012)　1701-1704　2012

DOI： 10.1109/ICIP.2012.6467206 　

ISSN： 1522-4880
A parallelization method for multiview stereo Peer-reviewed

Masaru Fukushi, Naoki Sekiguchi, Toru Abe

Proc. The 12th IAPR Conference on Machine Vision Applications (MVA2011)　385-388　2011/06/01
Speech identification with time-varying visual information extracted from the lip area Peer-reviewed

Kaori Asakawa, Shuichi Sakamoto, Akihiro Tanaka, Toru Abe, Yukio Iwaya, Yôiti Suzuki

Proc. 2011 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP’11)　3PM2-3-2　419-420　2011/03
AN EFFECTIVE METHOD OF SEARCHING FOR SUBREGIONS IN CHROMOSOME IMAGES Peer-reviewed

Toru Abe, Chieko Hamada

2011 18TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP)　1613-1616　2011

DOI： 10.1109/ICIP.2011.6115759 　

ISSN： 1522-4880
A classifiable sub-flow selection method for traffic classification in mobile IP networks Peer-reviewed

Akihiro Satoh, Toshiaki Osada, Toru Abe, Gen Kitagata, Norio Shiratori, Tetsuo Kinoshita

Journal of Information Processing System　6　(3)　307-322　2010/09/01
A Chromosome Image Recognition Method Based on Subregions Peer-reviewed

Toru Abe, Chieko Hamada, Tetsuo Kinoshita

COMPUTER VISION - ACCV 2009, PT III　5996　611-620　2010

ISSN： 0302-9743
Knowledge oriented network fault resolution method based on Active Information Resource Peer-reviewed

Yusuke Takahashi, Daisuke Misugi, Akira Sakatoku, Akihiro Satoh, Akiko Takahashi, Kazuto Sasai, Gen Kitagata, Toru Abe, Tetsuo Kinoshita

Proceedings - 2010 IEEE/WIC/ACM International Conference on Intelligent Agent Technology, IAT 2010　2　361-364　2010

DOI： 10.1109/WI-IAT.2010.123 　
A PARALLELIZATION METHOD FOR MULTI-STEREO 3D SHAPE RECONSTRUCTION Peer-reviewed

Naoki Sekiguchi, Masaru Fukushi, Toru Abe, Tetsuo Kinoshita

2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING　4493-4496　2010

DOI： 10.1109/ICIP.2010.5652277 　

ISSN： 1522-4880
A Chromosome Image Recognition Method Based on Subregions Peer-reviewed

Toru Abe, Chieko HAMADA, Tetsuo KINOSHITA

Proc. of The 9th Asian Conf. on Computer Vision, ACCV2009　1-10　2009/09/01
Chromosome image recognition with local band patterns Peer-reviewed

Toru Abe, Chieko Hamada, Tetsuo Kinoshita

Proc. The 11th IAPR Conference on Machine Vision Applications (MVA2009)　308-315　2009/05/01
CHROMOSOME REGION RECOGNITION WITH LOCAL BAND PATTERNS Peer-reviewed

Toru Abe, Chieko Hamada, Tetsuo Kinoshita

BIOSIGNALS 2009: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON BIO-INSPIRED SYSTEMS AND SIGNAL PROCESSING　49-+　2009
CHROMOSOME IMAGE RECOGNITION WITH SUBREGION SEARCH ITERATION Invited Peer-reviewed

Toru Abe, Chieko Hamada, Tetsuo Kinoshita

2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6　4169-+　2009

DOI： 10.1109/ICIP.2009.5414537 　
Traffic Classification in Mobile IP Network Peer-reviewed

Akihiro Satoh, Toshiaki Osada, Toru Abe, Gen Kitagata, Norio Shiratori, Tetsuo Kinoshita

PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON UBIQUITOUS INFORMATION TECHNOLOGIES & APPLICATIONS (ICUT 2009)　316-+　2009

DOI： 10.1109/ICUT.2009.5405754 　

ISSN： 1976-0035
染色体画像解析のための領域長正規化手法 Peer-reviewed

阿部亨, 濱田智栄子, 木下哲男

電子情報通信学会論文誌D　J91-D　(12)　2983-2987　2008/12/01
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 1880-4535
Chromosome Region Recognition Based on Local Band Patterns Peer-reviewed

Toru Abe, Chieko Hamada, Tetsuo Kinoshita

8TH IEEE INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOENGINEERING, VOLS 1 AND 2　1152-+　2008

DOI： 10.1109/BIBE.2008.4696846 　

ISSN： 2471-7819
Exploiting Domain Ontologies and Intelligent Agents: An Automated Network Management Support Paradigm Peer-reviewed

Sameera Abar, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

Lecture Notes in Computer Science　(3961)　823-832　2006/10/01
Region extraction with cooperative active contours Peer-reviewed

Takatoshi MURAMATSU, Suguru YAMAGUCHI, Toru ABE, Tetsuo KINOSHITA

情報科学技術レターズ　5　215-217　2006/09/01
A cellular automata model considering diversity associated with HIV infection Peer-reviewed

Hiroshi Ueda, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

Artificial Life and Robotics　10　(1)　73-76　2006/07

DOI： 10.1007/s10015-005-0380-6 　

ISSN： 1433-5298
Exploiting domain ontologies and intelligent agents: An automated network management support paradigm Peer-reviewed

Sameera Abar, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

INFORMATION NETWORKING　3961　823-832　2006

ISSN： 0302-9743
A behavioral characteristics model for flexible distributed system Peer-reviewed

Akiko Takahashi, Takuo Suganuma, Toru Abe, Yukio Iwaya, Tetsuo Kinoshita

20TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 1, PROCEEDINGS　1　275-+　2006

DOI： 10.1109/AINA.2006.10 　
An academic information retrieval system based on multiagent framework Peer-reviewed

Toru Abe, Yuu Chiba, Suoya, Baoning Li, Tetsuo Kinoshita

INFORMATION RETRIEVAL TECHNOLOGY, PROCEEDINGS　4182　497-507　2006

ISSN： 0302-9743
Knowledge-based support of network management tasks using active information resource Peer-reviewed

Susumu Konno, Abar Sameera, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

2006 IEEE/WIC/ACM INTERNATIONAL CONFERENCE ON INTELLIGENT AGENT TECHNOLOGY, PROCEEDINGS　195-199　2006

DOI： 10.1109/IAT.2006.84 　
HIVの多様性を考慮したセル・オートマトンによるHIV感染モデル Peer-reviewed

上田浩, 岩谷幸雄, 阿部亨, 木下哲男

情報処理学会論文誌「数理モデル化と応用」　42　(SIG17(TOM13))　114-121　2005/12/01
能動的情報資源を用いた自律的なネットワーク監視システム Peer-reviewed

今野将, 吉村智志, 岩谷幸雄, 阿部亨, 木下哲男

情報科学技術レターズ　2005/09/01
能動化された状態情報に基づくネットワーク管理支援方式 Peer-reviewed

今野将, 吉村智志, 羽鳥秀明, 岩谷幸雄, 阿部亨, 木下哲男

情報処理学会論文誌　46　(2)　493-505　2005/02
On the diversity of HIV using cellular automata approach Peer-reviewed

Hiroshi Ueda, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

Proc. the 10th Int. Symposium on Artificial Life and Robotics, AROB10 '05　GS5-2　2005/02/01
Agent-based knowledge acquisition in network management domain Peer-reviewed

S Abar, H Hatori, T Abe, T Kinoshita

19TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 1, PROCEEDINGS　1　687-692　2005

DOI： 10.1109/AINA.2005.80 　
A semantic knowledge model for agent-based network management system Peer-reviewed

S Abar, H Hatori, T Abe, T Kinoshita

Soft Computing as Transdisciplinary Science and Technology　808-818　2005

ISSN： 1615-3871
AIR-NMSにおけるネットワーク運用・管理知識の管理手法 Peer-reviewed

羽鳥秀明, 今野将, 岩谷幸雄, 阿部亨, 木下哲男

情報科学技術レターズ　3　91-93　2004/09
有用性評価のためのウェブページ構造の特徴分析法 Peer-reviewed

蓬莱一朗, 岩谷幸雄, 阿部亨, 木下哲男

情報科学技術レターズ　3　307-308　2004/09
Design of network management support system based on active information resource Peer-reviewed

S Konno, Y Iwaya, T Abe, T Kinoshita

18TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 1 (LONG PAPERS), PROCEEDINGS　1　102-106　2004

DOI： 10.1109/AINA.2004.1283895 　
A next generation knowledge management system architecture Peer-reviewed

S Abar, T Abe, T Kinoshita

18TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 2 (REGULAR PAPERS), PROCEEDINGS　2　191-195　2004

DOI： 10.1109/AINA.2004.1283784 　
能動的情報資源を用いたネットワーク管理支援システム Peer-reviewed

今野将, 加藤真也, 岩谷幸雄, 阿部亨, 木下哲男

情報科学技術レターズ　2　135-137　2003/09
エージェントシステムのためのインタラクティブな開発支援環境 Peer-reviewed

高垣暁, 打矢隆弘, 原英樹, 阿部亨, 木下哲男

情報科学技術レターズ　2　143-144　2003/09
Agent based knowledge management system Peer-reviewed

Sameera Abar, Toru Abe, Tetsuo Kinoshita

Proc. the 1st Int. Conf. Agent-Based Technologies and Systems, ATS2003　73-80　2003/08
Design of agent-based active information resource Peer-reviewed

Baoning Li, Toru Abe, Tetsuo Kinoshita

Proc. the 1st Int. Conf. Agent-Based Technologies and Systems, ATS2003　233-244　2003/08
Active information resource: Design concept and example Peer-reviewed

BN Li, T Abe, K Sugawara, T Kinoshita

AINA 2003: 17TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS　274-277　2003

DOI： 10.1109/AINA.2003.1192887 　
Reuse of bibliography in a database using customized output rule Peer-reviewed

Y Saeki, Y Iwaya, T Abe, T Kinoshita

ITRE2003: INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY: RESEARCH AND EDUCATION　380-384　2003

DOI： 10.1109/ITRE.2003.1270642 　
Active contour model using a priori knowledge of region shape Peer-reviewed

T Abe, Y Matsuzawa

2003 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL 3, PROCEEDINGS　III　409-412　2003
初期輪郭線から得られる形状情報を用いた動的輪郭モデル Peer-reviewed

松澤悠樹, 阿部亨, 熊沢逸夫

信学論(D-II)　J85-D-II　(9)　1436-1445　2002/09
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0915-1923
輪郭線周囲のクラスタリングによる動的輪郭モデルの制御 Peer-reviewed

松澤悠樹, 阿部亨, 熊沢逸夫

信学論(D-II)　J85-D-II　(2)　252-261　2002/02
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0915-1923
Clustering-based control of active contour model Peer-reviewed

T Abe, Y Matsuzawa

16TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL II, PROCEEDINGS　II　663-667　2002

ISSN： 1051-4651
Corner detection using slit rotational edge-feature detector Peer-reviewed

Y Etou, T Sugiyama, K Abe, T Abe

2002 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL II, PROCEEDINGS　II　797-800　2002
Corner detection using slit rotational edge-feature detector Peer-reviewed

Yasutaka Etou, Takahiro Sugiyama, Keiichi Abe, Toru Abe

Proc. of 6th Joint International Conference on Advanced Science and Technology, JICAST2001　41-44　2001/12
Indexing of panoramic images using wavelet transform and SOM Peer-reviewed

Md. Mahabubur Rahman, Toru Abe, Susumu Horiguchi

Proc. of World Multiconference on Systemics, Cybernetics and Informatics 2001, ISAS SCI 2001　XIII　555-560　2001/07
Region Extraction Using Competition of Multiple Active Contour Models Peer-reviewed

Yuki Matsuzawa, Toru Abe

Systems and Computers in Japan　32　(5)　1-11　2001/05

DOI： 10.1002/scj.1021 　

ISSN： 0882-1666
Performance evaluation of a partial retraining scheme for defective multi-layer neural networks Peer-reviewed

K Yamamori, T Abe, S Horiguchi

PROCEEDINGS OF THE 6TH AUSTRALASIAN COMPUTER SYSTEMS ARCHITECTURE CONFERENCE, ACSAC 2001　23　(4)　138-145　2001

DOI： 10.1109/ACAC.2001.903376 　
Region extraction with multiple active contour models Peer-reviewed

T Abe, Y Matsuzawa

SECOND INTERNATIONAL WORKSHOP ON DIGITAL AND COMPUTATIONAL VIDEO, PROCEEDINGS　56-63　2001

DOI： 10.1109/DCV.2001.929942 　
Region extraction method based on clustering along an object contour Peer-reviewed

Y Matsuzawa, Kumazawa, I, T Abe

2001 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL III, PROCEEDINGS　WA03.07　86-89　2001
胃粘膜内視鏡画像による腫瘍自動鑑別のための病変境界モデル Peer-reviewed

小越咲子, 阿部亨

信学論(D-II)　J83-D-II　(6)　1559-1563　2000/06
複数の動的輪郭モデルの競合による領域抽出 Peer-reviewed

松澤悠樹, 阿部亨

信学論(D-II)　J83-D-II　(4)　1100-1109　2000/04
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0915-1923
Theoretical learning-speed evaluation of parallel back-propagation algorithms Peer-reviewed

Kunihito Yamamori, Toru Abe, Susumu Horiguchi

Systems Research and Info. Systems　9　121-148　2000/01
Two-stage parallel partial retraining scheme for defective multi-layer neural networks Peer-reviewed

K. Yamamori, T. Abe, S. Horiguchi

Proceedings - 4th International Conference/Exhibition on High Performance Computing in the Asia-Pacific Region, HPC-Asia 2000　2　642-647　2000
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI： 10.1109/HPC.2000.843515 　
Multiple active contour models with application to region extraction Peer-reviewed

T Abe, Y Matsuzawa

15TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL 1, PROCEEDINGS　I　626-630　2000

ISSN： 1051-4651
A region extraction method using multiple active contour models Peer-reviewed

T Abe, Y Matsuzawa

IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, PROCEEDINGS, VOL I　1　64-69　2000

ISSN： 1063-6919
超並列計算機上でのニューラルネットワークの並列学習法 Peer-reviewed

山森一人, 阿部亨, 堀口進

信学論(D-II)　J80-D-II　(1)　350-353　1997/01
準概略図を用いたハイブリッドニューラルネットワークによる3次元物体認識 Peer-reviewed

猪瀬博和, 山森一人, 阿部亨, 堀口進

信学論(D-II)　J78-D-II　(12)　1927-1931　1995/12
Automatic identification of human faces by 3‐d shape of surfaces‐using vertices of b‐spline surface Peer-reviewed

Toru Abe, Hirotomo Aso, Masayuki Kimura

Systems and Computers in Japan　22　(7)　96-105　1991

DOI： 10.1002/scj.4690220710 　

ISSN： 1520-684X 0882-1666
Automatic Identification of Human Faces from 3-D Data Using Vertices of B-spline Surface Peer-reviewed

Toru Abe, Hirotomo Aso, Masayuki Kimura

Proc.Pac.Rim.Int.Conf.on AI '90　1　575-580　1990/11
3次元表面形状による人間の顔の自動識別 - B-スプライン曲面の制御点を利用して - Peer-reviewed

阿部亨, 阿曽弘具, 木村正行

信学論(D-II)　J73-D-II　(9)　1477-1484　1990/09
Publisher:
ISSN： 0915-1923
3次元データより得られる横顔輪郭線を用いた人間の顔の自動識別 Peer-reviewed

阿部亨, 阿曽弘具, 木村正行

信学論(D-II)　J73-D-II　(9)　1468-1476　1990/09
Publisher:
ISSN： 0915-1923
色符号化スリット光を用いた人間の顔の3次元形状計測 Peer-reviewed

阿部亨, 木村正行

信学論(D-II)　J72-D-II　(12)　2061-2069　1989/12
Publisher:
ISSN： 0915-1923

Show all ︎Show first 5

Misc. 216

Opportunistic Digital Twin のためのマルチエージェントフレームワークの一構成

富井, 駿介, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第32回マルチメディア通信と分散処理ワークショップ論文集　143-148　2024/10/23

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様々な都市問題をセンサ技術やIoTなどの先進技術を用いて解決するスマートシティの取り組みが注目されている．スマートシティを実現するプラットフォームは多数提案されているが，近年，偶発的なセンサ移動による環境センシングから，高精度に都市環境を把握する新たなDigital Twin技術として，Opportunistic Digital Twin(ODT)が提案されている．しかし，ODTのためのプラットフォームの整備は不十分であり，偶発的な接続機会を十分に活かすことができていない課題がある．そこで本研究では，新たなODTのためのプラットフォームとして，マルチエージェントシステムを用いたフレームワークを提案する．本発表では，提案フレームワークの概要とマルチエージェントシステムのプロトコル設計と初期実装，及びフレームワークを用いたユースケースについて述べる．
Controller placement to reduce the power consumption on SDN

2023　135-136　2023/11/30
MicroPADE：地域内分散型IoTアプリケーションのためのエージェントフレームワークの開発

富井, 駿介, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第31回マルチメディア通信と分散処理ワークショップ論文集　259-263　2023/10/18

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センサ技術や通信技術の発達に伴い，IoT アプリケーションの普及が進んでいる．IoT アプリケーションを地域性と管理性という観点から分類すると，地域性が強く分散型の IoT アプリケーション向けのプラットフォームに関する研究は不十分である．そこで本研究では，地域内分散型の IoT アプリケーション向けのマルチエージェントプラットフォームを提案し，センサデバイスのような限られた計算資源でも動作するエージェントフレームワーク MicroPADE を実装した．本デモでは，提案プラットフォームを利用して開発した地域内分散型のチャットアプリケーションを示す．
地域内分散型IoTアプリケーションのためのエージェント化デバイスの開発

伊藤, 優樹, 富井, 駿介, 阿部, 亨, 菅沼, 拓夫

第31回マルチメディア通信と分散処理ワークショップ論文集　169-171　2023/10/18

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IoT アプリケーションを管理性と地域性の 2 軸に基づく観点から分類を行ったとき，地域性が強く分散型の IoT アプリケーションに関する研究は不十分である．本研究では，地域内分散型 IoT アプリケーションのためマルチエージェントプラットフォームを提案し，プラットフォーム上での限られた計算資源で動作するエージェントフレームワーク MicroPADE を実装している．本稿では，MicroPADE のためのエージェント化デバイスについて，ハードウェアを中心に報告する．
地域性の強い非管理型IoTアプリケーションのためのエージェントフレームワークの提案

富井, 駿介, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第85回全国大会講演論文集　2023　(1)　101-102　2023/02/16

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センサやネットワーク技術の普及に伴い、様々な分野でIoTアプリケーションが実用化されつつある。IoTアプリケーションを、データの産出／利活用の地域的性質、およびサービスの管理的性質の2観点により分類すると、地域性が強く、サービスの管理性が弱い、アドホックなアプリケーション向けの開発支援環境が不十分である。そこで本研究では、そのような特性を持ったIoTアプリケーションのためのエージェントフレームワークを提案する。本発表では提案プラットフォームの概念と、設計および初期実装について述べる。
消費電力とネットワーク性能を考慮したSDNコントローラ配置を決定するモデルの一検討

近藤, 智文, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 水木, 敬明, 菅沼, 拓夫

第85回全国大会講演論文集　2023　(1)　175-176　2023/02/16

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近年、ネットワークをコントローラプレーンとデータプレーンに分離して柔軟に全体最適な制御を行うSDNが注目されている。大規模なSDNにおいてはフロー遅延の制約や耐障害性の観点からコントローラを複数配置する必要があり、その際どのようにコントローラを配置するかを決定するController Placement Problem (CPP)が検討されている。また、企業や大学等の組織において電気代の節約や環境への配慮からICT機器の消費電力を削減する需要が高まっている。本研究では、SDNにおいてネットワーク性能を維持しつつ消費電力を削減することを目的としたCPPのモデルを提案する。
小型行動認識センサーを用いた軽運動活動認識に関する一考察

遠藤, 和基, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第84回全国大会講演論文集　2022　(1)　1025-1026　2022/02/17

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高齢者の健康寿命延伸のためには、ウォーキング、ジョギング、体操等の軽い運動（軽運動）が効果的であることが広く知られている。近年のIoT技術の進展により、様々な身体活動を認識し、そのフィードバックによって適切な動作を促すシステム等の開発が進んでいるが、軽運動の状況をリアルタイムでかつ正確に把握し、その運動強度の適正さなど、健康を維持するアドバイスを的確なタイミングで提示することは困難である。本研究では、独自に開発している小型行動認識センサーと機械学習を用いた軽運動の活動認識を行うためのシステムを開発する。本発表では当該システムの基本設計について述べる。（276字／300字以内）
LPWAを用いたIoTアプリケーション向けエージェントフレームワークの設計と実装

高橋, 大夢, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第84回全国大会講演論文集　2022　(1)　369-370　2022/02/17

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センサ技術、無線ネットワーク技術等の普及に伴い、様々な分野でIoTアプリケーションの実用化が進んでいる。IoTアプリケーションを地域性の強弱、およびセンサ情報利用者／提供者の関係の強弱の2観点により分類すると、これからすぐに行ける程度の近隣地の状況把握など、地域性が強く、利用者／提供者の関係がアドホックなアプリケーション向けの開発支援環境が不十分である。そこで本研究では、マルチエージェントに基づく地産地消型アプリケーション向けのIoTプラットフォームを提案する。本発表では提案プラットフォームの設計と実装について述べる。
SDNに基づくインターネットアクセス回線選択手法の検討

井上, 大誠, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 水木, 敬明, 菅沼, 拓夫

第84回全国大会講演論文集　2022　(1)　225-226　2022/02/17

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Wi-Fi, WiMAX, LTE, 4G/5Gなど,インターネットを通じたデータ通信を行うためのアクセス回線の選択肢が多様化している.しかしながら,アクセス回線の状況や利用するアプリケーションに応じて適切なアクセス回線は異なるが,一般の利用者がそれらを考慮して,適切なアクセス回線を選択して利用することは困難である.本研究では,Software Defined Networkを用いたアプリケーションやユーザの要件に基づく柔軟なアクセス回線選択手法を提案する.
SDN環境における利用者の状況に応じた動的なアクセス制御に関する一検討

佐々木, 優, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 水木, 敬明, 菅沼, 拓夫

第84回全国大会講演論文集　2022　(1)　547-548　2022/02/17

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近年，教育現場などにおいて情報端末の導入や生徒が自身の情報端末を授業で使用するBring Your Own Device（BYOD）環境の導入が進んでいる．BYOD環境では様々な利用者が様々な情報端末でネットワークを利用することから，セキュリティ上のリスクが存在する．その対策の一つとしてアクセス制御がある．しかしながら，従来のアクセス制御は静的に設定したポリシーによりアクセス可能な資源が固定的に決定される．そこで本研究では，Software Defined Network（SDN）技術を利用して，同一の利用者であっても状況に応じてアクセス可能な資源の範囲を動的に変更する手法について検討する．
A study on Network Resilience in Multi-Domain Communication in SDN Environments

野崎亮也, GUILLEN Luis, 和泉諭, 阿部亨, 阿部亨, 水木敬明, 水木敬明, 菅沼拓夫, 菅沼拓夫

電子情報通信学会大会講演論文集(CD-ROM)　2022　2022

ISSN： 1349-144X
An SDN-Based Moving Target Defense as a Countermeasure to Prevent Network Scans

CHIBA Shoya, GUILLEN Luis, IZUMI Satoru, ABE Toru, ABE Toru, SUGANUMA Takuo, SUGANUMA Takuo

IEICE Transactions on Communications (Web)　E105.B　(11)　2022

ISSN： 1745-1345
A Performance Evaluation of Network Scan Defense Method by Combining an SDN-based MTD and IPS

2021　40-47　2021/11/18
装着型CO2センサを用いた人の行動認識手法に関する基礎的検討

高橋, 大夢, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第83回全国大会講演論文集　2021　(1)　327-328　2021/03/04

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建物内で人同士が対面して行う会話などの行動を認識することは建物のデマンド制御や昨今の新型コロナ感染症対策などに有効である．行動認識手法の既存研究として，カメラの映像情報を利用する方法や，対象者の音声情報を利用する方法などがある．しかしながら，カメラやマイクから得られる情報がプライバシーを含む情報であり，情報の取り扱いや管理が難しく，ユーザがシステムを導入する際の弊害になるなどの課題がある．そこで本研究ではCO2センサを内蔵した装着型デバイスを利用した行動認識手法を提案する．本発表では，CO2濃度を利用した会話状況の推定や，室内におけるCO2濃度分布推定などに関する基礎的検討について述べる．
SDN環境におけるNFVを用いたテーブルオーバーフローの緩和の一検討

ムスタファ, ソユル, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫

第83回全国大会講演論文集　2021　(1)　79-80　2021/03/04

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Software Defined Networking（SDN）において， SDNスイッチはフローテーブルに格納されているフローエントリに基づいて，トラィックを処理して，ネットワークの管理や制御を実現している．このフローテーブルは容量が限られているため，DDoS攻撃などにより，テーブルがオーバーフローする問題がある．先行研究ではフローテーブルをネットワーク上に分散させるアプローチがあるが，ネットワークトポロジに依存する課題がある．そこで本研究ではネットワーク機能仮想化（NFV）を用い，攻撃者を動的にフィルタリングすることによりSDNでのテーブルオーバーフロー攻撃を緩和する手法を検討する．
SDNに基づくMoving Target Defenseのセキュリティ機能の高度化に関する一考察

千葉, 翔也, 小野, 大地, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫

第83回全国大会講演論文集　2021　(1)　267-268　2021/03/04

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Moving Target Defense (MTD) は標的となる資産を移動させることで攻撃から防御するセキュリティのアプローチである．ネットワークにおけるMTDでは， IPアドレスなどのランダム化などで標的の移動を実現し，攻撃者からのスキャンを防御する．しかし，アドレスなどを頻繁に変化することから，実運用上において，通信継続などネットワーク管理面で課題が存在する．本研究では，それらの課題をSoftware Defined Network (SDN) の機能を用いて解決することで，より実用性の高いMTDの実現方法を検討する．
教師なし学習を用いたDDoS攻撃検知に関する一検討

榧場, 叶耀, 小野, 大地, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫

第83回全国大会講演論文集　2021　(1)　451-452　2021/03/04

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近年，Distributed Denial of Service (DDoS) 攻撃による被害が増加しており，DDoS攻撃の検知手法が数多く提案されている．その中でも，機械学習を用いた検知手法は高い検知精度が示されている．多くの研究では教師あり学習を採用しており，検知モデルを構築するために膨大な正常データと攻撃データを収集し，データに対してラベル付けを行うアノテーション作業が必要となる．本稿では，学習に攻撃データを必要とせず，正常データのみでのモデル構築を可能とする教師なし学習を用いたDDoS攻撃の検知手法について検討を行う．
SDNを用いた災害時の異種ネットワーク切替に関する一検討

野崎, 亮也, ルイス, ギリエ, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫

第83回全国大会講演論文集　2021　(1)　171-172　2021/03/04

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光ファイバーやLTE, Wi-Fiなど有線・無線含めた様々なネットワーク環境が普及してきている．これら異種ネットワーク環境を同時に複数使うことで，災害時における通信継続の実現が期待できる．しかし，これらは表現形式や規格の違いなどにより切り替えや集約が難しい．本研究ではSoftware-Defined Networking(SDN) を利用して，これら異種ネットワーク環境を統一的に扱い，効率よく切り替える手法を検討する．また実デバイス上への展開を検討する．
疫学調査効率化のための高齢者の対面型コミュニケーション検出手法の設計

上野, 正義, 伊藤, 優樹, 阿部, 亨, 菅沼, 拓夫

第82回全国大会講演論文集　2020　(1)　461-462　2020/02/20

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疫学調査により，他者との対面型コミュニケーションが高齢者の健康維持に重要であることがわかっており，コミュニケーションの質・量と健康寿命延伸との関係性のさらなる解明が期待されている．しかし，疫学調査における対面型コミュニケーション状況の分析は，通常，対象者へのアンケートをもとに行われており，網羅性や正確性の欠如による状況把握の不十分さが課題となっている．そこで本研究では，高齢者の他者との対面型コミュニケーションの様子を正確に把握する行動認識システムを開発し，疫学調査の効率化を実現することを目的とする．本稿では，コミュニケーション検出のための解析アルゴリズムの設計について述べる．
AR技術を用いた技能習得支援システムの設計と実装 Peer-reviewed

古川詩帆, 内林俊洋, 阿部亨, 菅沼拓夫

第26回マルチメディア通信と分散処理ワークショップ (DPSWS2018)　156-159　2018/11
Design of an AR-supported System for Skill Training

Shiho Furukawa, Toshihiro Uchibayashi, Toru Abe, Takuo Suganuma

2018/09
OpenFlow管理回線の災害リスクを考慮したネットワーク制御手法の設計

和泉, 諭, 高平, 寛之, 後谷, 浩輔, 畑, 美純, Luis, Guillen, 阿部, 亨, 菅沼, 拓夫

第80回全国大会講演論文集　2018　(1)　17-18　2018/03/13

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災害時にスイッチやリンクが切断され,重要情報の損失やデータ通信の不通が社会問題となった.そこで,コントローラがネットワーク内のスイッチを柔軟に制御可能なOpenFlowを用いて,災害時にネットワーク状況に応じて通信経路を動的に制御することで,バックアップ伝送の効率化やデータ通信の維持を目指した研究が行われている.しかし従来研究では,スイッチ間のデータ回線が破損する確率(災害リスク)のみを考慮しており,コントローラとスイッチ間の管理回線が破損した場合はネットワーク制御が困難となる.本稿では,OpenFlow管理回線の災害リスクを考慮したネットワーク制御手法を提案し,その基本設計を示す.
OpenFlowにおける経路切り替えコストを考慮したネットワーク制御手法の一検討

後谷, 浩輔, 高平, 寛之, 畑, 美純, Luis, Guillen, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫

第80回全国大会講演論文集　2018　(1)　279-280　2018/03/13

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クラウドの普及に伴うサーバやスイッチの増加により,データセンタのネットワークが大規模かつ複雑になっていることから,通信経路の制御やトポロジの管理が煩雑になり運用者の負担が増大している.そこで,コントローラでネットワーク内のスイッチを集中制御することで柔軟な運用を実現できるOpenFlowが注目されている.しかし,機器の障害やトポロジの変更により通信経路を切り替える際に,制御パケットの送信時間やスイッチの処理時間等の影響で,時間がかかり,ネットワーク稼働率の低下が懸念される.本稿では,OpenFlowにおける経路の切り替えにかかるコストを考慮することで,経路の切り替えを高速化する手法を検討する.
Kinectを用いた遮蔽に頑健な転倒検出手法に関する一考察

榎村昭宏, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(2)　2.245‐2.246　2018/03/13
遠隔操作ロボットと全方位カメラを用いた遠隔臨場感システムのQoS制御に関する一検討

阿部隼斗, 三浦誠, 生出拓馬, 阿部亨, 菅沼拓夫, 阿部亨, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(3)　3.81‐3.82　2018/03/13
手の周辺領域の状態に着目したインタラクション検出の検討

塚本竜広, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(2)　2.443‐2.444　2018/03/13
人物の骨格情報を用いた所持品検出手法に関する一検討

三浦誠, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(2)　2.445‐2.446　2018/03/13
AR技術を用いた機器管理のための各行動に対応した作業支援システム

石川渓太, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(4)　4.155‐4.156　2018/03/13
AR技術を用いた技能習得支援に関する一考察

古川詩帆, 石川渓太, 内林俊洋, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(4)　4.755‐4.756　2018/03/13
OpenFlowにおける経路切り替えコストを考慮したネットワーク制御手法の一検討

後谷浩輔, 高平寛之, 畑美純, GUILLEN Luis, 和泉諭, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(3)　2018
OpenFlow管理回線の災害リスクを考慮したネットワーク制御手法の設計

和泉諭, 高平寛之, 後谷浩輔, 畑美純, LUIS Guillen, 阿部亨, 菅沼拓夫, 阿部亨, 菅沼拓夫

情報処理学会全国大会講演論文集　80th　(3)　2018
Design and Implementation of a Network Control Method Considering Route Switching Time for OpenFlow

後谷浩輔, 高平寛之, 畑美純, GUILLEN Luis, 和泉諭, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

電子情報通信学会技術研究報告　118　(206(NS2018 87-104)(Web))　2018

ISSN： 0913-5685
A Background Subtraction Method with an Image Set as a Background Model

笠原優也, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

電子情報通信学会技術研究報告　117　(362(PRMU2017 101-111))　65‐70　2017/12/10

ISSN： 0913-5685
Design of Resource-aware Streaming Data Quality Controller Using Reinforcement Learning

生出真人, 阿部亨, 菅沼拓夫

電子情報通信学会技術研究報告　117　(353(IN2017 46-69))　121‐126　2017/12/07

ISSN： 0913-5685
SDN Based End-to-end Inter-domain Routing Mechanism for Mobility Management and Its Implementation (インターネットアーキテクチャ)

HATA Misumi, SOYLU Mustafa, IZUMI Satoru, ABE Toru, SUGANUMA Takuo

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報　117　(299)　71-76　2017/11/15
Publisher: 電子情報通信学会
ISSN： 0913-5685
Design of an SDN based network control method for Multipath Distributed Storage Systems (情報ネットワーク)

GUILLEN Luis, IZUMI Satoru, ABE Toru, SUGANUMA Takuo, MURAOKA Hiroaki

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報　117　(205)　19-24　2017/09/07
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Proposal for Personal Data Control Assistant Based on User's Preference Clearness

117　(205)　1-6　2017/09/07
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Proposal of Network Control Method Considering Disaster Risk and Data Transfer Time during Disasters

117　(205)　67-72　2017/09/07
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Study of Performance Enhancement of Resource Retrieval Considering Physical Connection Relationship in Mobile Ad Hoc Network

117　(205)　55-60　2017/09/07
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Study on Network Performance for Distributed Storage Systems

Luis, Guillen, 和泉, 諭, 阿部, 亨, 菅沼, 拓夫, 村岡, 裕明

第79回全国大会講演論文集　2017　(1)　9-10　2017/03/16

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The need for transferring large amounts of data in distributed storage systems with a faster rate is growing exponentially, thus, we need to increase the bandwidth and the overall throughput for effective data transferring. One of the techniques to improve network performance is Link Aggregation which consists on aggregating different links in pursue of the required bandwidth increase. However, regardless of the relatively easy implementation and deployment, it leverages the control plane and consequently network performance to vendor specifications. In our research, we utilize Software Defined Networking to control network for effective usage of network bandwidth. In this paper, we conducted preliminary experiments and conform limitations and problems of Link Aggregation. We briefly discuss SDN based solutions.
分散ストレージシステム向けSDN型ネットワーク制御手法の提案

和泉, 諭, Luis, Guillen, 阿部, 亨, 菅沼, 拓夫, 村岡, 裕明

第79回全国大会講演論文集　2017　(1)　11-12　2017/03/16

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データの大容量化やクラウド技術の普及に伴い，複数のストレージに分散してデータを管理・複製する分散ストレージシステムに注目が集まっている．分散ストレージシステムでは複数のストレージにネットワーク経由でデータを伝送し，その管理や複製を行う．しかし，大量のデータを伝送する場合ではストレージの読込・書込速度やネットワーク帯域がボトルネックとなり，データ伝送に多くの時間を有する問題が発生する．そこで本研究ではネットワーク帯域のボトルネックの解消に着目し，Software Defined Networking技術を用いたネットワーク制御手法を提案する．本手法はネットワーク状況やデータサイズに応じて転送する経路を動的に制御することで，分散ストレージにおけるデータ伝送の効率化を実現する．本稿では，提案手法の基本設計をその効果について述べる．
機械学習を用いたHTTP Adaptive StreamingのQoS制御に関する一検討

生出真人, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　79th　(3)　3.477‐3.478　2017/03/16
遠隔操作ロボットと全方位カメラを用いた遠隔臨場感システムに関する一考察

三浦誠, 内林俊洋, 阿部亨, 菅沼拓夫

情報処理学会全国大会講演論文集　79th　(3)　3.505‐3.506　2017/03/16
HOG特徴量を用いた時系列画像からの人物検出

荻莊裕太, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　79th　(4)　4.279‐4.280　2017/03/16
superpixelを用いた背景の変動に頑健な移動物体領域抽出手法

笠原優也, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　79th　(2)　2.271‐2.272　2017/03/16
携帯型プロジェクタとカメラを用いた作業支援のための情報投影手法の検討

越後佑暉, 釣賀亮佑, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

電子情報通信学会大会講演論文集(CD-ROM)　2017　ROMBUNNO.D‐11‐10　2017/03/07

ISSN： 1349-144X
A Study on Network Performance for Distributed Storage Systems

LUIS Guillen, IZUMI Satoru, ABE Toru, SUGANUMA Takuo, MURAOKA Hiroaki

情報処理学会全国大会講演論文集　79th　(3)　2017
分散ストレージシステム向けSDN型ネットワーク制御手法の提案

和泉諭, LUIS Guillen, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫, 村岡裕明

情報処理学会全国大会講演論文集　79th　(3)　2017
A Basic Design to Improve Estimation Accuracy of Outdoor Sensor Positions Using UAV

116　(361)　63-68　2016/12/15
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Design of User-oriented Sensor Network for Effective Monitoring of Health Condition of Many Subjects

116　(361)　57-62　2016/12/15
Publisher: 電子情報通信学会
ISSN： 0913-5685
Design and Implementation of SDN Based Mobility Management

116　(231)　53-58　2016/09/29
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Protocol Design for D2D Information Flow Control for Unevenly-Distributed Groups

116　(231)　65-70　2016/09/29
Publisher: 電子情報通信学会
ISSN： 0913-5685
多人数の状況を効果的に観測するウェアラブル生体センサネットワークのシミュレーション評価

佐々木, 塁, 市地, 慶, 阿部, 亨, 菅沼, 拓夫

第78回全国大会講演論文集　2016　(1)　461-462　2016/03/10

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災害時の避難所や，多参加者のスポーツイベントなど，少数の担当者が多人数の健康状態を管理する必要がある状況では，ウェアラブル生体センサによる状態の自動モニタリングが有効である．しかし，多数の観測対象者が狭い範囲に集中する環境においては，通信帯域などのネットワークリソースが不足し，リアルタイムのモニタリングが困難となる可能性がある．これに対し我々は，取得するデータの種類や頻度を状況に応じて動的に調整することで，多数のセンサ情報を効果的に観測する利用者指向センサネットワークシステムを提案している．本発表では，この概念を適用したウェアラブル生体センサネットワークシステムの有効性を無線ネットワークシミュレーターを用いて検証する．
多対多ライブ動画配信のためのグループの嗜好を考慮したD2D情報流制御に関する一検討

安部充, 生出拓馬, 生出拓馬, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　78th　(3)　3.271-3.272　2016/03/10
複数の参照画像を用いた背景変動に頑健な対象領域抽出手法

野崎裕樹, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　78th　(2)　2.217-2.218　2016/03/10
モバイルプロジェクタとカメラを利用した作業支援のための情報投影手法

釣賀亮佑, 大沼信也, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　78th　(2)　2.275-2.276　2016/03/10
ネットワーク情報のAR可視化システムの提案

大沼信也, 阿部亨, 菅沼拓夫

情報処理学会シンポジウムシリーズ(CD-ROM)　2015　(2)　178‐183　2015/10/07

ISSN： 1882-0840
B-11-12 Extension of Symbiotic Feeling Provision Function Using Motion Sensor for Symbiotic Space

Ito Tomoyasu, Kumagai Kenta, Abe Toru, Suganuma Takuo

Proceedings of the Society Conference of IEICE　2015　(2)　246-246　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
B-7-24 多人数の状況を効果的に観測するウェアラブル生体センサネットワークシステムの基本設計(B-7.情報ネットワーク,一般セッション)

佐々木塁, 市地慶, 阿部亨, 菅沼拓夫

電子情報通信学会ソサイエティ大会講演論文集　2015　(2)　95-95　2015/08/25
Publisher: 一般社団法人電子情報通信学会
B-7-20 A Fast Communication Method for Highly-Available Storage Systems

Izumi Satoru, Edo Asato, Abe Toru, Suganuma Takuo

Proceedings of the Society Conference of IEICE　2015　(2)　91-91　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
B-7-27 Study on Streaming Based Data Sharing Platform for Smatrphones

Oide Takuma, Abe Toru, Suganuma Takuo

Proceedings of the Society Conference of IEICE　2015　(2)　98-98　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
B-7-21 Fundamental Study of of Data Transmission Method Under Disaster Situation

Edo Asato, Izumi Satoru, Abe Toru, Suganuma Takuo

Proceedings of the Society Conference of IEICE　2015　(2)　92-92　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
ARを用いた屋外アドホックネットワーク管理支援手法の実装

村岡諒, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

電子情報通信学会大会講演論文集(CD-ROM)　2015　(2)　ROMBUNNO.B-7-17-88　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 1349-144X
ネットワーク情報可視化のための対象位置・姿勢推定手法

大沼信也, 阿部亨, 菅沼拓夫

電子情報通信学会大会講演論文集(CD-ROM)　2015　(2)　ROMBUNNO.B-7-18-89　2015/08/25
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 1349-144X
ネットワーク情報のAR可視化によるネットワーク管理手法に関する基礎的検討

大沼, 信也, 市地, 慶, 阿部, 亨, 菅沼, 拓夫

第77回全国大会講演論文集　2015　(1)　29-30　2015/03/17

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ネットワークインフラの普及により，ネットワーク技術に精通していない一般のユーザがネットワーク機器を操作してネットワーク情報にアクセスする機会が増えつつある．一般に、ネットワーク情報の確認や設定のためには，ネットワーク管理者への問い合わせや，機種によって異なる機器へのアクセス方法の調査など，煩雑な作業が必要とされる．本研究では，現場の一般ユーザが容易に，かつ直感的にネットワーク機器に関する情報を理解可能とする可視化システムを提案する．本システムでは，Software Defined Networkを用いてネットワーク情報を取得し，Augmented Reality (AR) 技術を用いて，それら情報を，表示端末に表示された機器上に可視化表示する．本稿では，可視化システムのアーキテクチャの基本設計，およびその有効性について基礎的検討を行う．
多人数の状況を効果的に観測する利用者指向センサネットワークの基礎的検討

佐々木, 塁, 市地, 慶, 阿部, 亨, 菅沼, 拓夫

第77回全国大会講演論文集　2015　(1)　109-110　2015/03/17

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本研究では，対象者の状況に応じて，計算機リソースを動的に割り当てることで効率的に多人数の状態を観測する利用者指向センサネットワークを提案する．具体的には，加速度センサ等の生体センサを用いて多人数の対象者の健康状態や活動状況を観測する．さらに，センサデータを解析し，通常とは異なる状態が検出された対象者に対して，センサデータの獲得頻度を高め，ネットワークやストレージ等の計算機リソースを多く割り当てて，集中的に観測することで，より効率的にセンサデータの収集を行う．本稿ではこのような利用者指向センサネットワークを実現するためのプラットフォームについて検討し，適用事例について議論する．
SDNを利用したネットワーク情報のAR可視化システムの基礎的検討

大沼信也, 市地慶, 阿部亨, 菅沼拓夫

情報処理学会全国大会講演論文集　77th　(3)　3.29-3.30　2015/03/17
An Evaluation for Flexible Selection of Internet Connections based on Network Expert Knowledge

ITO Jin, EDO Asato, IZUMI Satoru, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　114　(478)　185-190　2015/03/02
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We have proposed an advanced method to select the Internet connections based on the network expert knowledge, by using the concept of Software Defined Network (SDN). This method controls the Internet access line, considering the network management policy, user context, application requirements, performances and so on. In this paper, we design and implement this method based on the SDN. Also, we show the effectiveness and the applicability of our proposed method through the simulation experiments.
Extraction of Touching Object Regions Using Image and Depth Sequences

SUGAWARA Katsuya, ABE Toru, SUGANUMA Takuo

Technical report of IEICE. Multimedia and virtual environment　114　(410)　245-250　2015/01/22
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Usually, precise discrimination among person's activities requires the recognition of not only the person's posture and action but also the person's surroundings (e.g. objects contacted by the person), and this recognition process assumes that the individual regions of the person and the objects are extracted in advance from a data sequence such as a video sequence. This article proposes an accurate method for extracting the regions of multiple targets (e.g. a person and objects) touching with each other and separating from each other. Our proposed method, which uses an image sequence and a depth sequence, consists of three steps: segmentation of each frame (extraction of subregions), matching subregions between frames (extraction of subregion sequences), and merging subregion sequences. Using several features (e.g., image, depth, and motion features) effectively, our method can improve accuracy in the region extraction of individual targets.
Extraction of Touching Object Regions Using Image and Depth Sequences

IPSJ SIG Notes. CVIM　2015　(44)　1-6　2015/01/15
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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Usually, precise discrimination among person's activities requires the recognition of not only the person's posture and action but also the person's surroundings (e.g. objects contacted by the person), and this recognition process assumes that the individual regions of the person and the objects are extracted in advance from a data sequence such as a video sequence. This article proposes an accurate method for extracting the regions of multiple targets (e.g. a person and objects) touching with each other and separating from each other. Our proposed method, which uses an image sequence and a depth sequence, consists of three steps: segmentation of each frame (extraction of subregions), matching subregions between frames (extraction of subregion sequences), and merging subregion sequences. Using several features (e.g., image, depth, and motion features) effectively, our method can improve accuracy in the region extraction of individual targets.
A detection method of human-object interactions in crowded environment based on hierarchical image analysis

MITSUHASHI Yuto, ABE Toru, SUGANUMA Takuo

Technical report of IEICE. PRMU　114　(356)　69-74　2014/12/11
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To apply for surveillance of luggage lifting/leaving in a lobby and monitoring of buying behavior at a shop, several methods have been developed for extracting human and object regions from an image sequence, determining the relations between them, and recognizing the human activities for the objects. However, it is still difficult to determine the relations between humans and objects in crowded environments, and detect various types of human-object interactions. To deal with this difficulty, we propose a method for detecting human-object interactions (actions in which persons move objects) according to the results of hierarchical image analysis. Our proposed method extracts individual person regions from an input image sequence, and then identifies several body parts of each person. Based on those analysis results, the states around region of interest (lower arm) are acquired, and used as the features for detecting human-object interactions in crowded environments.
A Study on Information Flow Protocol among Sensors with Different Owners

OIDE Takuma, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　114　(207)　123-128　2014/09/11
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Many network applications which use large amount of sensing data have been developed in various fields. Current sensor-based service development models, however, do not consider the information flow among sensors with different owners. Our research objective is to achieve the software platform on which services can achieve fair information flow among providers and users. In this paper, we discuss basic contract models and communication protocols among sensor devices and confirm their practicality.
H-021 Detecting human-object interactions in crowded environments

Mitsuhashi Yuto, Abe Toru, Suganuma Takuo

13　(3)　109-110　2014/08/19
Publisher: Forum on Information Technology
H-022 Robust Object Detection Method for Fluctuation of Background

Mori Shun, Abe Toru, Suganuma Takuo

13　(3)　111-112　2014/08/19
Publisher: Forum on Information Technology
H-005 Extraction of Human and Object Regions Using Image and Depth Sequences

Sugawara Katsuya, Abe Toru, Suganuma Takuo

13　(3)　75-76　2014/08/19
Publisher: Forum on Information Technology
距離画像センサを用いた鏡型空間共有システムの設計

川村拓弥, 阿部亨, 菅沼拓夫

研究報告マルチメディア通信と分散処理（DPS）　2014　(10)　1-6　2014/07/17
Publisher: 一般社団法人情報処理学会

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より感覚的現実感の高い遠隔コミュニケーションシステムやテレプレゼンスシステムを実現するために，共生空間の概念に基づく空間共有システムを提案する．また，空間共有システムの一実現例として，距離画像センサを用いた鏡型空間共有システムを提案し，その設計について議論する．
A Design of A Flexible selection of Internet Connections based on Network Expert Knowledge

ITO Jin, EDO Asato, IZUMI Satoru, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　114　(139)　31-36　2014/07/17
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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In this paper, we propose an advanced method to select the Internet connections based on the network expert knowledge, by using the concept of Software Defined Network (SDN). The flexible characteristics of the SDN realize to manage and control the Internet access line based on the network management policy, user requirements, security concerns, performances, etc. We also introduce knowledge processing framework into the mechanism of network configuration to systematically handle the complex information and intentions of users/administrators of the network. This paper presents the design of our proposed method and its implementation based on OpenFlow technology. We also show the effectiveness of our proposed method through the simulation experiments.
AR技術を用いた屋外アドホックネットワーク管理支援に関する一考察

村岡諒, 山崎蓮馬, 小林秀幸, 高橋晶子, 阿部亨, 菅沼拓夫

情報処理学会研究報告. マルチメディア通信と分散処理研究会報告　2014　(5)　1-6　2014/07/17
Publisher: 一般社団法人情報処理学会

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センサネットワークなどの屋外アドホックネットワークにおいては,ノードの電源問題や無線通信の不確実性に起因するネットワークの不安定さの課題があり,その管理・運用の高度化・効率化のためには,現場でのネットワーク状態の即時的な把握が重要である.本研究では,AR 技術を用いて屋外におけるアドホックネットワークの状態を可視化することで,ノードの配置調整等の管理を現場で効果的に行う,屋外アドホックネットワーク管理支援システムについて検討する.
広域センサネットワークのためのエージェントフレームワークに関する一検討

生出拓馬, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　413-414　2014/03/11

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近年，スマートフォンなどのセンサデバイスによって構成される広域センサネットワークにおいて，収集されたセンサデータを共有して活用するサービスの実現に注目が集まっている．これらのサービスには，ユーザからの多様な要望に応じるための柔軟なシステム構成が必要だが，本研究ではマルチエージェントシステム（MAS）を用いてこの課題を解決する新たなフレームワークを提案する．MASではそれぞれのエージェントが協調して目的を達成するが，広域センサネットワークを想定したエージェント間協調についてはこれまで検討が不十分であった．そこで，本稿では特に，広域センサネットワークにおけるエージェント間の協調プロトコルについて議論する．
SDNに基づく知識型ネットワーク制御機構の検討

江戸麻人, 伊藤仁, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　435-436　2014/03/11

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インターネットへのアクセス回線種別や、その利用形態の多様化により、ユーザの状況や使用するアプリケーションにって要求される通信品質を満たすアクセス回線の選択が困難である課題が指摘されている。本研究では、この課題に対し、ユーザが設定したポリシーとネットワークに関する様々な知識に基づき適切なアクセス回線を自動的に選択する手法を提案している。具体的には、Software Defined Network(SND)の概念を導入し、知識処理機構との連携によりユーザの状況に応じてアクセス回線へ効果的にトラフィックを振り分ける手法の研究開発を進めている。本発表では、本提案手法のシステム化における基盤技術として、ネットワーク情報の取得、及びアクセス回線の制御を効果的に行うための、ネットワーク制御機構と知識処理機構の連携方式に関する検討を行う。
知識を用いた複数アクセス回線の効果的な併用手法

伊藤仁, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　433-434　2014/03/11

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インターネットへの接続回線には有線・無線問わず様々なものが存在する．また，通信回線の利用形態の多様化により，ユーザの状況や使用するアプリケーションに応じて要求される通信品質は異なる．これまで，我々はソフトウェア定義型ネットワークの概念を導入し，ユーザが設定したポリシーに基づき接続回線へ効果的にトラフィックを振り分ける手法を提案してきた．しかし，現状ではユーザの状況を考慮した動的な接続回線の選択は困難である．そこで本研究では，前述の手法を拡張し，知識処理を用いて回線利用ポリシーの制御とユーザの状況を推定し，その結果と各接続回線の特性に応じて効果的に通信トラフィックを振り分ける手法を提案する．
電波強度と表示端末の移動履歴を利用したセンサ情報のAR可視化

山崎蓮馬, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　23-24　2014/03/11

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専門的知識を持たないユーザが、センサ情報を直感的に理解できるセンサ情報システムを目指し、AR（Augmented Reality：拡張現実）技術を用いてセンサ情報を可視化するシステムに関する研究開発を進めている。本稿では、その基盤技術として、マーカなどの特殊な仕組みなしで、センサノードの電波強度によりセンサノードの方位を推定し、また、表示端末内蔵の各種センサのデータを用いることで、表示端末の位置情報を算出し、それらの結果に基づき、AR技術を用いてセンサ情報を現実空間に重畳して可視化する手法を提案する。
シーンフローに基づく物体分割手法

菅原勝也, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　223-224　2014/03/11

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3次元シーンフローは，3次元空間内での物体の運動を3次元ベクトル場として表現したものである．本稿では，3次元シーンフローに基づき，物体の分割を行う手法を提案する．提案手法は，距離画像センサから得られる映像と深度情報の対応を利用しシーンフローを推定するステップ，各箇所で推定されたシーンフローの類似度から同一物体に属する領域を決定するステップ，この結果に基づき，移動する各物体を背景や他の物体から分離するステップで構成される．また，本稿では，提案する物体分割手法の実用性，および，有効な応用分野について議論する．
人込みの中での人物と物体のインタラクションの開始・終了検出

三橋優人, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　87-88　2014/03/11

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映像から人物や物体を検出する研究において、多数の人物が存在する環境で、人物と物体の様々なインタラクションを検出することは依然として困難な課題である。本研究では、手荷物の置き引きや不審物の置き去りの監視、店頭での購買活動の状況把握等への応用を想定し、人込みの中での人物と物体のインタラクション（物体を手にとる・手から離す）を映像から検出する手法の実現を目指している。具体的には、映像から個々の人物領域を抽出し、各領域における人物の手の部分の特徴量に着目することで、人物と物体のインタラクションの開始・終了の安定した検出を行う手法を提案する。本発表では本提案手法の基本設計について述べる。
3次元共生空間におけるHMDを用いた空間提示手法の提案

伊藤寛祥, 川村拓弥, 阿部亨, 菅沼拓夫

第76回全国大会講演論文集　2014　(1)　85-86　2014/03/11

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本研究は仮想空間と現実空間を感覚的に融合させ、両空間でのより高度なコミュニケーションを可能にする3次元共生空間の実現を目標としている。本論文では、共生感を提供する機能のひとつである仮想空間の情報を現実空間に提示する機能について、新たにヘッドマウントディスプレイを用いた空間提示手法を提案する。具体的には仮想空間のアバタをヘッドマウントディスプレイ上で表示し、現実空間と重ね合わせて同時に認識できるようにすることで、アバタとのインタラクションを強化する、新たな空間提示手法について検討する。
An Estimation Method and Its Evaluation of Human Action using Multiple Sensors in Portable Devices and Knowledge Processing

SUZUKI Ayaka, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　113　(473)　89-94　2014/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Existing estimation techniques of human action have some problems such as high installation costs of sensors and restriction of user's daily life. To solve these problems, we propose an estimation method of human action by using a portable device such as a smartphone. Our proposed method estimates basic action based on various kinds of sensor data collected by multiple sensors in the portable device. The proposed method utilizes knowledge base including action time and location to enhance estimation accuracy by combining the knowledge processing and sensor data. In this paper, we explain the detailed design of our estimation method and its implementation. We also carry out its experimentation to confirm effectiveness of our proposed estimation method.
A Design of Estimation Algorithm of Utilization of Electrical Equipment by Using Smart Meter

YOSHINO Taro, IZUMI Satoru, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　113　(389)　93-98　2014/01/23
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We propose a method for estimating the use of electrical equipment from the total power consumption of a home obtained through a smart meter. Our method estimates the use of individual electrical equipment from the total power consumption with the profiles of working equipment features. In this article, we explain the design and implementation of our algorithm, and illustrates the effectiveness of our proposed method through several experiments.
共生型3次元仮想空間における空間提示機能の高度化

森瞬, 阿部亨, 菅沼拓夫

マルチメディア通信と分散処理ワークショップ論文集　2013　(6)　95-98　2013/11/27
オフィス環境におけるネットワークシステムの省電力化のためのプランニング手法

粟原孝太, 和泉諭, 阿部亨, 菅沼拓夫

マルチメディア通信と分散処理ワークショップ論文集　2013　(6)　262-268　2013/11/27
A Proposal of Estimation Method of Utilization of Electrical Equipment by Using Smart Metering

YOSHINO Taro, IZUMI Satoru, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　113　(206)　1-5　2013/09/12
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We have been investigating an estimation method of human behavior based on monitoring living conditions for effective energy saving in home environment. In this paper, we propose an estimation method of utilization of electrical equipment by using smart metering as one of the functions. In particular, we design its algorithm according to the time series variation in the total power consumption of the home obtained by the smart meter and profile information (power consumption, feature amount, etc.) of each electric equipment in the home. We also show the feasibility and effectiveness of our proposed method from the preliminary experiment results.
M-032 AI Planning Method for Energy-efficient Network Systems

Awahara Kouta, Izumi Satoru, Abe Toru, Suganuma Takuo

12　(4)　395-396　2013/08/20
Publisher: Forum on Information Technology
H-014 Trajectory Estimation of a Range Image Sensor Based on Depth Information Mosaicing

Sugawara Katsuya, Abe Toru, Suganuma Takuo

12　(3)　121-122　2013/08/20
Publisher: Forum on Information Technology
A Proposal of Estimation of Human Action using Multiple Sensors in Portable Devices

SUZUKI Ayaka, ABE Toru, SUGANUMA Takuo

IEICE technical report. Information networks　113　(140)　83-87　2013/07/18
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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There is a growing need for estimation techniques of human action such as walking, running, standing, and sitting. These techniques are utilized for various daily-life support systems such as supervisory system or healthcare support system. However, existing estimation methods have issues in practical use. For instance, the existing methods have high installation costs of sensors and require daily effort from users to wear. To solve these issues, we propose an estimation method of human action by using a portable device such as a smartphone. In our proposed method, multiple sensors in the portable device collect sensor data related to human actions. Then, our method estimates basic action based on effective combination of the data. In addition, knowledge base technology including action time and location is introduced to enhance its accuracy by combining the knowledge and sensor data processing. From the results of initial experiments with our proposed method. we confirmed that the estimate accuracy of action was different according to the axis of the sensor and data correction. In this paper, we explain the design of our estimation method and the initial experiments with our proposed method. The experimental results show the needs of our proposed method.
共生型3次元仮想空間における距離画像センサを用いた共生感提供機能の設計

川村拓弥, 阿部亨, 菅沼拓夫

第75回全国大会講演論文集　2013　(1)　491-492　2013/03/06

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本研究では、現実空間と仮想空間を感覚的に融合することで、両空間の利用者間のコミュニケーションを効果的に支援することを目的とする「共生型3次元仮想空間システム」の実現を目指している。本論文では当該システムにおける共生感提供機能について、現実空間の利用者の挙動をより詳細に仮想空間に反映させる手法について述べる。具体的には、距離画像センサを新たに導入することにより現実空間の利用者の身体動作を獲得し、仮想空間のアバタ動作と同期させる手法を提案する。
共生型3次元仮想空間における共生感提供機能の高度化と社会システムへの適用

菅沼拓夫, 川村拓弥, 森瞬, 阿部亨

第75回全国大会講演論文集　2013　(1)　489-490　2013/03/06

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本研究では、現実空間と仮想空間を感覚的に融合することで、両空間の利用者間のコミュニケーションを効果的に支援することを目的とする「共生型3次元仮想空間システム」の実現を目指している。本発表では、共生型3次元仮想空間のコンセプトと、そこで提供される共生感提供機能の高度化について述べる。また本システムの社会システムへの応用について検討する。
電波強度を利用したセンサ情報のAR可視化について

山崎蓮馬, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　49-51　2013/03/06
Publisher: 一般社団法人情報処理学会

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センサ情報のAR可視化を実現する従来手法では、センサ情報を獲得、伝送、蓄積するセンサ情報基盤に対し、AR可視化のための特殊な仕組みを導入する必要があった。また、マーカを利用できない環境でのAR可視化が困難である課題がある。本研究では、センサ情報基盤にマーカ等の特殊な仕組みを導入せずにセンサ情報のAR可視化を実現する手法を提案する。具体的には、センサノードの信号強度に基づく方向推定によるセンサ位置情報を用いた、センサ情報のリアルタイムAR可視化手法を提案する。
ソフトウェア定義型ネットワークに基づく複数接続回線の効果的な併用手法

野沢達也, 林優一, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　73-75　2013/03/06
Publisher: 一般社団法人情報処理学会

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インターネットへの接続回線には有線・無線問わず様々なものが存在するが、従来は、複数の利用可能な接続回線が存在する場合でも、排他的に単一回線を利用するのが一般的であり、回線利用の効率性に課題があった。本発表では、複数の接続回線の管理にソフトウェア定義型ネットワークの概念を導入し、それぞれの接続回線の特性に応じて効果的にトラフィックを振り分けることで、安定かつ安全な回線利用を実現する、複数接続回線の併用手法を提案する。
映像を用いた人物位置検出システムの出力品質制御法

AdrianAgusta, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　31-33　2013/03/06
Publisher: 一般社団法人情報処理学会

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複数のカメラから得られた映像を用い人物位置の検出を行う手法は,比較的安価に実現可能,高精度な位置情報を獲得可能,利用者がデバイスを装着する必要がない等の利点を有する.しかし,この手法では,対象とする人数や,映像を転送・処理する際のネットワークや計算機の負荷などの状況が変化すると,出力される位置情報の品質が変動する.また,位置情報に要求される品質自体も,アプリケーションによってそれぞれ異なる.本稿では,位置情報の品質に対する要求や状況の変化に応じ,映像を用いた人物位置検出システムのパラメータを制御することで,アプリケーションが必要とする品質の位置情報を安定に出力するための手法を提案する.
生活環境モニタリングに基づく行動状況推定手法の検討

吉野太郎, 和泉諭, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　51-53　2013/03/06
Publisher: 一般社団法人情報処理学会

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スマートメータやセンサネットワークの技術の進展に伴い生活環境のモニタリングが普及しつつあり、得られたデータを分析することで日々の暮らしの改善へ役立てるための研究開発が進展しつつある。従来研究では、電力消費量や水道使用量など、センサでモニタリングされた特定のデータから家庭内の器具の使用状況を分析する手法が提案されている。本研究では、異なるセンサから取得される複数のデータを多元的に組み合わせて人の行動の状況を推定する手法を検討する。特に、生活環境として家庭内の生活インフラ(電気、水、ガス)に着目し、それらのスマートメーターから得られるデータを統合的に分析することで生活者の行動を推定する手法を検討する。
小型携帯端末による複数センサを用いた行動推定手法の検討

鈴木彩香, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　53-55　2013/03/06
Publisher: 一般社団法人情報処理学会

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人間の行動推定技術は,高齢者の見守り支援や運動不足解消のための健康管理など,多くのアプリケーションにおいて必須の技術であり,近年その需要が高まってきている.従来の行動推定手法では,多くの場合,カメラや各種センサ等を対象環境内に事前に設置したり,利用者が特種なデバイスを装着することを前提としていた.そのため,カメラを用いた場合のプライバシー保護,センサ設置にかかるコスト,利用者の利便性など,実用化に際しての課題が多い.本発表では,現在広く普及している小型携帯端末に内蔵された多様なセンサを用いて利用者の状態情報を収集し,得られた情報を組み合わせることで利用者の行動を推定する手法について検討する.
ネットワークシステムにおける電力の有効利用のための自律的制御手法

粟原孝太, 和泉諭, 阿部亨, 菅沼拓夫

全国大会講演論文集　2013　(1)　89-91　2013/03/06
Publisher: 一般社団法人情報処理学会

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ICTの重要性が近年さらに高まる中,オフィスビル等で消費される電力のうち,ネットワークシステムによる消費電力が占める割合は益々増大してきている.これに伴い,ネットワークシステムの使用状況に基づき,システムを構成する各機器を適切に運用することが省エネ・節電を実現するための重要な課題となっている.本稿では,ネットワークシステムの使用状況に基づき,システムを構成する各機器の自律的な制御を行うことで,利用者の利便性を損なうことなく電力の有効利用を実現する手法について提案する.
O-023 A Method for Controlling Output Information Quality of Multicamera Based Human Positioning System

Agusta Adrian, Abe Toru, Suganuma Takuo

11　(4)　405-406　2012/09/04
Publisher: Forum on Information Technology
B-7-56 Control Method for People Positioning System by Multi-Camera

Agusta Adrian, Abe Toru, Suganuma Takuo

Proceedings of the IEICE General Conference　2012　(2)　217-217　2012/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
D-12-53 Recognizing Human Action by Template Matching Using Silhouette and Optical Flow

Notoya Kyohei, Abe Toru, Suganuma Takuo

Proceedings of the IEICE General Conference　2012　(2)　147-147　2012/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
D-9-6 Estimation of the Living Activities of Elderly People by Using Portable Devices

Suzuki Ayaka, Abe Toru, Suganuma Takuo

Proceedings of the IEICE General Conference　2012　(1)　138-138　2012/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
I-049 A Parallelization Method for Multiview Stereo with Various Camera Configurations

Fukushi Masaru, Sekiguchi Naoki, Abe Toru

10　(3)　393-394　2011/09/07
Publisher: Forum on Information Technology
A parallelization method for multi-view stereo using PC cluster

ITE technical report　34　(52)　91-96　2010/12
Publisher: 映像情報メディア学会
ISSN： 1342-6893
A Parallelization Method for Multi-view Stereo Using PC Cluster

SEKIGUCHI Naoki, FUKUSHI Masaru, ABE Toru

IEICE technical report　110　(324)　91-96　2010/11/25
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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This article proposes a parallelization method for multi-view stereo 3D shape reconstruction using a PC cluster. The proposed method divides the subject 3D space into several domains by planes passing through a virtual view point, and assigns the process for each divided domain to a PE (Processing Element) individually. This process assignment approach can reduce the amount of inter-PE communication. In addition to this, the proposed method balances the loads on the PEs dynamically for efficient parallelization. The experimental results show that the proposed method can reduce the computation time up to 40% compared with a naive space division method and achieve about 9 times speedup in case of 32 PEs.
RG-001 A Method of Searching for Subregions in Chromosome Images

Abe Toru, Hamada Chieko

9　(2)　85-90　2010/08/20
Publisher: Forum on Information Technology
部分領域を単位とした染色体画像解析

阿部亨, 濱田智栄子, 木下哲男

画像ラボ　21　(4)　12-19　2010/04/01
Publisher: 日本工業出版
ISSN： 0915-6755
Webサービスの能動化と連携の支援

水内翔太, 魏文鵬, 三浦良介, 阿部亨, 木下哲男

全国大会講演論文集　72　331-332　2010/03/08
D-11-28 Dynamic Load Balancing for Parallel Multi-Stereo 3D Shape Reconstruction

Sekiguchi Naoki, Fukushi Masaru, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2010　(2)　28-28　2010/03/02
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-1 P2Pシステムにおける情報検索手法に関する一考察(D-8.人工知能と知識処理,一般セッション)

佐野一樹, 阿部亨, 木下哲男

電子情報通信学会総合大会講演論文集　2010　(1)　74-74　2010/03/02
Publisher: 一般社団法人電子情報通信学会
D-8-3 A Method for analyzing Information Source for fault diagnosis in AIR-NMS

Sugawara Sou, Takahashi Yusuke, Sasai Kazuto, Kitagata Gen, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2010　(1)　76-76　2010/03/02
Publisher: 一般社団法人電子情報通信学会
Network Fault Management Support Method by Organization of Activated Knowledge

TAKAHASHI Yusuke, MISUGI Daisuke, TAKAHASHI Akiko, SASAI Kazuto, ABE Toru, KINOSHITA Tetsuo

2010　(5)　1-8　2010/02/25
Publisher: 情報処理学会
ISSN： 0919-6072
An Organization and Cooperation Method of Activated Knowledge for Network Management in AIR-NMS

TAKAHASHI Yusuke, MISUGI Daisuke, TAKAHASHI Akiko, SASAI Kazuto, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　109　(188)　57-62　2009/09/03
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To reduce the intellectual and time-consuming load imposed on network administrators, we have proposed AIR-NMS, which is the network management system (NMS) based on Active Information Resource (AIR), and pursue our research for achieving the practical realization of AIR-NMS. In AIR-NMS, various information resources (e.g., practical knowledge of network management, status information of network equipment, etc.) are combined with software agents which have the knowledge and function for supporting the utilization of them, and thus individual information resources are provided with activities as AIRs. Through the organization and cooperation of these AIRs, they support the network administrators by carrying out troubleshooting in the network. In this article, we focus on the troubleshooting by the activated knowledge for network management, and explain the organization and cooperation method of activated knowledge in AIR-NMS.
A subregion search method for chromosome images

IEICE technical report　109　(182)　135-142　2009/08/31
Publisher: 電子情報通信学会
ISSN： 0913-5685
A Subregion Search Method for Chromosome Images

ABE TORU, HAMADA CHIEKO, KINOSHITA TETSUO

2009　(21)　1-8　2009/08/24
Publisher: 情報処理学会
ISSN： 0919-6072
L-013 Flow Behavior based Traffic Classification in Mobile IP Network

Satoh Akihiro, Osada Toshiaki, Kitagata Gen, Abe Toru, Shiratori Norio, Kinoshita Tetsuo

8　(4)　155-156　2009/08/20
Publisher: Forum on Information Technology
F-031 Design of Active Information Resource for Web Services

Mizuuchi Shota, Wei Wenpeng, Miura Ryosuke, Abe Toru, Kinoshita Tetsuo

8　(2)　459-460　2009/08/20
Publisher: Forum on Information Technology
F-023 Discovering And Composing Semantic Web Services Using Agents

Wei Wenpeng, Miura Ryosuke, Abe Toru, Kinoshita Tetsuo

8　(2)　443-444　2009/08/20
Publisher: Forum on Information Technology

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This work presents a multi-agent architecture, which can discovery and compose semantic web services dynamically and automatically. The proposed system mediates between user requirements and semantic web services using ontology technology, combines appropriate web services to provide better user experiences. The intelligent agents with knowledge make it possible to appreciate semantic ontologies and to support users with accessing the integrated services. A simple experiment validates the applicability and the flexibility of this approach.
I-054 Parallel Multi-stereo 3D Shape Reconstruction Based on Flexible Iteration Control and Dynamic Load Balancing

Sekiguchi Naoki, Fukushi Masaru, Abe Toru, Horiguchi Susumu

8　(3)　359-364　2009/08/20
Publisher: Forum on Information Technology
RG-003 Chromosome Image Analysis Based on Subregions

Hamada Chieko, Abe Toru, Kinoshita Tetsuo

8　(2)　109-114　2009/08/20
Publisher: Forum on Information Technology
マルチエージェントシステムの余裕度に基づく動作制御(3.2 第7回情報シナジー研究会, 3. 研究活動報告)

星川数也, 高橋晶子, 阿部亨, 木下哲男

年報　8　104-108　2009/07
Publisher: 東北大学サイバーサイエンスセンター
F-024 Problem Solving by Cooperation of Active Knowledge Resource in AIR-NMS

Takahashi Yusuke, Misugi Daisuke, Takahashi Akiko, Sasai Kazuto, Abe Toru, Kinoshita Tetsuo

445-446　2009
Publisher: Forum on Information Technology
A Method for Analyzing Chromosome Image with Local Region

HAMADA Chieko, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　108　(328)　131-138　2008/11/20
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To make the visual examination of a chromosome image, chromosome regions have to be extracted from the image and classified into distinct chromosome types. To improve the accuracy and flexibility in this process, we have proposed a method that regards each chromosome region as a series of subregions and iterates a search for every subregion in the image consecutively. In this article, we explain the procedures for applying the proposed method to actual chromosome images and show the experimental results of them.
A Method for Analyzing Chromosome Image with Local Region

HAMADA Chieko, ABE Toru, KINOSHITA Tetsuo

IPSJ SIG Notes. CVIM　2008　(115)　131-138　2008/11/20
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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To make the visual examination of a chromosome image, chromosome regions have to be extracted from the image and classified into distinct chromosome types. To improve the accuracy and flexibility in this process, we have proposed a method that regards each chromosome region as a series of subregions and iterates a search for every subregion in the image consecutively. In this article, we explain the procedures for applying the proposed method to actual chromosome images and show the experimental results of them.
D-12-114 Local Intensity Normalization Method for Chromosome Image Analysis

Hamada C., Yamaguchi S., Shimada H., Ohba N., Abe T., Kinoshita T.

Proceedings of the IEICE General Conference　2008　(2)　245-245　2008/03/05
Publisher: The Institute of Electronics, Information and Communication Engineers
The issues about fusion of communications and broadcasting

ABE Toru

IEICE technical report　107　(490)　33-38　2008/02/20
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Recently, new various services begins to appear by fusion of communications and broadcasting. However, the appearance of these services causes new issues at the same time. The issues that occurs because of the appearance of such new service is considered in this thesis. And, it proposes what kind of system is necessary to solve those issues.
Parallel Calculation Method for Multicamera Stereo 3D Shape Reconstruction

TAKAHASHI Kazuki, FUKUSHI Masaru, ABE Toru, HORIGUCHI Susumu

IPSJ SIG Notes　2007　(125)　129-134　2007/12/14
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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For reconstructing 3D shape of a scene from more than two images, voxel based multicamera methods have been proposed. In these methods, the 3D space is divided into voxels, and the 3D shape of a scene is reconstructed by determining the voxels corresponded to object surfaces. To improve the accuracy and stability of the reconstruction, these methods require that the states of other voxels are reflected on the determination for each voxel. However, this process necessitates huge computation time. To overcome this problem, this article proposes a parallel computation method based on voxel space division. The proposed method reduces the amount of communication between processors by voxel space division which takes into account the slope of the line through a virtual viewpoint and each voxel, and also reduces the communication latency by a parallel communication. The experimental results shows that the proposed method achieves up to 8.2 times faster performance using 16 processors.
Parallel Calculation Method for Multicamera Stereo 3D Shape Reconstruction

TAKAHASHI Kazuki, FUKUSHI Masaru, ABE Toru, HORIGUCHI Susumu

IEICE technical report　107　(380)　129-134　2007/12/06
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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For reconstructing 3D shape of a scene from more than two images, voxel based multicamera methods have been proposed. In these methods, the 3D space is divided into voxels, and the 3D shape of a scene is reconstructed by determining the voxels corresponded to object surfaces. To improve the accuracy and stability of the reconstruction, these methods require that the states of other voxels are reflected on the determination for each voxel. However, this process necessitates huge computation time. To overcome this problem, this article proposes a parallel computation method based on voxel space division. The proposed method reduces the amount of communication between processors by voxel space division which takes into account the slope of the line through a virtual viewpoint and each voxel, and also reduces the communication latency by a parallel communication. The experimental results shows that the proposed method achieves up to 8.2 times faster performance using 16 processors.
Parallel calculation method for multicamera stereo 3D shape reconstruction

ITE technical report　31　(64)　129-134　2007/12
Publisher: 映像情報メディア学会
ISSN： 1342-6893
H-019 Chromosome Region Extraction and Classification Based on Local Band Patterns

Hamada Chieko, Yamaguchi Suguru, Shimada Hiromitsu, Asano Katsutoshi, Sakai Eiichi, Ohba Nobuyuki, Satoh Toshiya, Abe Toru, Kinoshita Tetsuo

6　(3)　45-47　2007/08/22
Publisher: Forum on Information Technology
A Multiagent Based System for Chromosome Image Processing

6　107-111　2007/07
Publisher: 東北大学情報シナジーセンター
D-16-11 Extraction and Classification of Chromosome Region with Partial Band Pattern

Yamaguchi Suguru, Hamada Chieko, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2007　(2)　294-294　2007/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
Experimenting with the Application Scenarios : A knowledge-based Prototype System to Autonomously Support the Network Management Functions

ABAR Sameera, KONNO Susumu, UCHIYA Takahiro, IWAYA Yukio, ABE Toru, KINOSHITA Tetsuo

106　(472)　25-30　2007/01/15
Development of a multi-agent mediated ontology-driven prototype sysytem for the active support to network management

Sameera Abar, Susumu Konno, Takahiro Uchiya, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

Proceedings of the Joint international Conference of The 4th IGNOIE-COE06 & SOIM-COE06　2007
Extraction and Classification of Chromosome Regions with Multiagent

YAMAGUCHI Suguru, SHIMADA Hiromitsu, ASANO Katsutoshi, SAKAI Eiichi, OHBA Nobuyuki, SATOH Toshiya, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　106　(429)　55-60　2006/12/08
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To conduct visual analysis of chromosome images, every chromosome region has to be extracted from an image and classified into the chromosome types in advance. To improve the accuracy and efficiency in this process, we propose a new method for extracting and classifying chromosome regions in an image. The proposed method regards every chromosome region as a series of subregions, and iterates the search for each subregion in the image consecutively. Furthermore, to achieve effective search of subregions, we propose a multiagent based method where each agent cooperates with other agents and searches a specific subregion individually.
D-12-34 An Image Retrieval Method Using Subregion Based Vote

Takeda Nobuhiro, Yamaguchi Suguru, Abe Toru, Kinosita Tetsuo

Proceedings of the IEICE General Conference　2006　(2)　166-166　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-3 Chromosome Image Processing by Using Multiagent System

Yamaguchi Suguru, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2006　(1)　86-86　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
DAS-1-1 On a Knowledge Enhanced Search Method for Personal Academic Information Collections(DAS-1. Web Intelligence)

Li Baoning, Abe Toru, Iwaya Yukio, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2006　"S-1"-"S-2"　2006/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
A Knowledge-based Approach for the Automated Management of Communication Network Systems

ABAR Sameera, IWAYA Yukio, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　105　(639)　35-38　2006/03/06
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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The ever-increasing complexity of distributed communication network systems in this information era demands a highly level of network availability and reliability. In this context, a promising knowledge-based approach is presented to support the automated detection of performance degradations and communication faults. The network knowledge has been structured according to the CommonKADS which is a comprehensive methodology for developing reuse-based expert systems. In the proposed knowledge-intensive framework, the static domain-related concepts are composed as the domain knowledge ontology. The empirical knowledge for managing the network is represented as the fault-state causal reasoning models, and it is explicitly encoded as the core knowledge of multi-agent middleware layer as heuristic rules for inference. This task-oriented experiential knowledge manipulates the domain content and structure during the diagnostic sessions. The run-time reasoning strategy during the course of cooperative problem solving phase is provided through the interaction of agents' base-processes with the dynamic status information of the operational network system. Few application scenarios have been modeled to demonstrate the effectiveness of our proposed network knowledge framework.
A Multicamera Stereo Method with Occlusion Handling

ODAKURA Satoshi, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　105　(478)　37-42　2005/12/16
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Multicamera stereo methods, which use more than two cameras and employ multiple pairs of images, have been proposed and studied for obtaining 3D structure of a scene. Compared to a naive stereo method that employs a single pair of images, those methods can decrease ambiguities of image correspondence and achieve accurate 3D shape measurement. However, a decrease in measurement accuracy may be caused by occluded regions in an image. To deal with this problem, this paper proposes a multicamera stereo method with occlusion handling. In the proposed method, the 3D space in a scene is divided into 3D meshes, and every mesh is decided whether it corresponds to the surface of an object or not. By using the information of meshes decided as objects surfaces, the proposed method prevents occlusions from affecting the decisions on other meshes, and aims to achieve 3D shape measurement robust for occlusions.
Design and Implementation of Classification Function of Network Faults in AIR-NM

2005　(19)　167-172　2005/11/30
Knowledge Retrieval Support System Based on Active Information Resource

2005　(19)　261-266　2005/11/23
多様性に基づく相互作用を考慮したセル・オートマトンによる HIV 感染モデル

上田浩, 岩谷幸雄, 阿部亨, 木下哲男

第 15 回日本数理生物学会大会講演要旨集　82　2005/09
F-034 Evolving Search Support System for Academic Information

CHIBA Yuu, SUOYA, LI Baoning, ABE Toru, KINOSHITA Tetsuo

4　(2)　263-265　2005/08/22
Publisher: Forum on Information Technology
A Cellular Automata model for HIV infection with diversity of HIV

UEDA HIROSHI, IWAYA YUKIO, ABE TORU, KINOSHITA TETSUO

情報処理学会研究報告　2005　(20(MPS-53))　41-44　2005/03/09
Publisher: 一般社団法人情報処理学会
ISSN： 0919-6072

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We modeled interaction between the immune system and HIV with CA (cellular automata), and investigate an effect of diversity of HIV strains. Our CA model has not only four states but type of HIV and T-Cells. We performed computer simulation, variating maximum value of the diversity of HIV. As a result, T-Cell decrease and simulation steps increase were found in the situation with great diversity of HIV. We also observed infection state, incubation period state, AIDS state in CA pattern.
D-8-3 Examination of the interactive development methodology of multiagent system

Uchiya Takahiro, Maemura Takahide, Abe Toru, Iwaya Yukio, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2005　(1)　75-75　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-12 Simplified Image Based Retrieval Method by Using Multiagent

Yamaguchi Suguru, Sasaki Fuminori, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2005　(1)　84-84　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-8 An Active Management Method of Computer Network Including a Difference between Physical and Logical Topology

Uchida Nami, Konno Susumu, Iwaya Yukio, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2005　(1)　80-80　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-4 CONSIDERATION OF SEMANTIC MATCHING MECHANISM FOR AGENT COMMUNICATION

Yoshinaga Junya, Uchiya Takahiro, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2005　(1)　76-76　2005/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
A-2-24 A model of HIV indection considerd diversity with Cellular Automata

UEDA Hiroshi, IWAYA Yukio, ABE Toru, KINOSHITA Tetsuo

Proceedings of the IEICE General Conference　2005　63-63　2005/03/07
Publisher: 社団法人電子情報通信学会
A Multiagent Framework Based Architecture for Academic Information Retrieval Systems

CHIBA Yuu, YA SUO, LI Baoning, ABE Toru, KINOSHITA Tetsuo

IEICE technical report. Artificial intelligence and knowledge-based processing　104　(548)　41-46　2005/01/10
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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In real-life searches in academic information, a search is often iterated while the user's query is continually shifting in part or whole. This type of search is called an "evolving search" and it performs an important role in academic information retrieval. In this article, we propose a novel architecture for academic information retrieval systems. The proposed architecture is based on multiagent framework and designed for supporting user's evolving searches. By employing the concept of Active Information Resource (AIR), in the proposed architecture, each piece of academic information is structured as an agent and provided with autonomy. Consequently, academic information itself can actively carry out part of evolving searches, and thus it is possible to reduce the user's load for retrieving academic information effectively.
An Architecture for Academic Information Retrieval Support Systems Based on Active Information Resource

2004　(15)　257-262　2004/11/24
Interactive Design Method and Design Support Environment for Building Agent-based System

2004　(15)　71-76　2004/11/24
Design of Status Information Agent in AIR-NMS

YOSHIMURA Satoshi, KONNO Susumu, IWAYA Yukio, ABE Toru, KINOSHITA Tetsuo

IEICE technical report　104　(272)　27-30　2004/08/26
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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The authors have proposed an Active Information Resource based Network Management Support System (AIR-NMS). In AIR-NMS, administrators' empirical knowledge and network nodes' status information are structured as agents(AIRs)to utilize them systematically and efficiently. By using the structured knowledge and information. AIR-NMS carries out part of the network management procedures, e.g., detecting obstacle, collecting information, and deciding measure. In this article, we discuss I-AIR, which is the status information AIR of a network node, and describe the design of l-AIR to achieve the active functions of AIR-NMS.
F-026 Region Extraction by Cooperation of Active Contour Model Agents

MURAMATSU Takatoshi, ABE Toru, KINOSHITA Tetsuo

3　(2)　271-273　2004/08/20
Publisher: Forum on Information Technology
F-025 Design of Status Information Agents in AIR-NMS

Yoshimura Satoshi, Konno Susumu, Iwaya Yukio, Abe Toru, Kinoshita Tetsuo

3　(2)　269-270　2004/08/20
Publisher: Forum on Information Technology
F-030 Design of Academic Information Retrieval Support System Using Active Information Resource

Chiba Yuu, Abe Toru, Kinoshita Tetsuo

3　(2)　283-285　2004/08/20
Publisher: Forum on Information Technology
能動的情報資源を用いたネットワーク管理支援システム-基本構想-(3.2 第2回情報シナジー研究会, 3. 研究活動)

吉村智志, 今野将, 岩谷幸雄, 阿部亨, 木下哲男

年報　3　106-114　2004/06
Publisher: 東北大学情報シナジーセンター
D-13-1 Retrieval of Academic Information Using Active Information Resource

Chiba Yuu, Koike Hiroyuki, Ohara Rie, Ishigaki Kyushiro, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2004　(2)　341-341　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-3 A Method of Knowledge Management on Network Operation and Management

Hatori Hideaki, Konno Susumu, Iwaya Yukio, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2004　(1)　90-90　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-2 Supporting Network Management Tasks Using Status Information Agents

Yoshimura Satoshi, Sugawara Satoshi, Konno Susumu, Iwawya Yukio, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2004　(1)　89-89　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-4 Supporting Understanding of Source Code by Active History

Takagi Tsuguji, Konno Susumu, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2004　(1)　91-91　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-8-5 Tracability Problem based on Multiagent System

Kinoshita Tetsuo, Chiba Yuu, Abe Toru, Miura Katsuo

Proceedings of the IEICE General Conference　2004　(1)　92-92　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
D-12-20 Region Extraction by Using Active Contour Model Agents

MURAMATSU Takatoshi, ABE Toru, KINOSHITA Tetsuo

Proceedings of the IEICE General Conference　2004　(2)　186-186　2004/03/08
Publisher: The Institute of Electronics, Information and Communication Engineers
Design and Implementation of Network Management Support System based on Active Information Resource (AIR)

KONNO Susumu, KATO Shinya, SUGAWARA Satoshi, IWAYA Yukio, ABE Toru, KINOSHITA Tetsuo

IEICE technical report. Artificial intelligence and knowledge-based processing　103　(623)　25-30　2004/01/22
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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We have proposed a novel network management support system (NMS) based on active information re- source (AIR). In the proposed system, called AIR-NMS, the empirical knowledge and status information required for network management are made as agents. By coordinating with each other and organizing themselves autonomously, the agents support the network management procedures actively, which are usually charged to the network administrator. In this article, we explain the structures of the agents (i.e., "AIR-ized" knowledge and information) and their coordinating/organizing mechanism in AIR-NMS, and discuss the functions of an experimental system.
Interactive Design/Development Methodology of Agent System

UCHIYA Takahiro, TAKAGAKI Akira, HARA Hideki, ABE Tooru, KINOSHITA Tetsuo

IEICE technical report. Artificial intelligence and knowledge-based processing　103　(623)　55-60　2004/01/22
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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The agent-based computing systems have been design and developed using recent agent technologies. However, the design/debugging of these system is difficult due to the situational and nondeterministic behavior of the agents, and the effective design method and design support technologies have not been proposed. In this paper, to realize the efficiency of the development of agent system, we propose a new method of interactive design/development and support technologies based on repository-based agent framework.
Design of Network Management Support System based on Active Information Resource

2003　(87)　37-42　2003/08/28
Knowledge Base Construction Using Active Information Resource

Koike Hiroyuki, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　121-121　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Cooperative Work Support in Cyber-office

Suzuki Tatsuya, Konno Susumu, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　116-116　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Sharing Support of Information and Knowledge in Community

Suzuki Yusuke, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　120-120　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Knowledge Sharing with Active Information Resource

Ito Atsushi, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　"S-8"　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Registration and Management of Active Information Resources

Taniguchi Tomoya, Li Bao ning, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　"S-10"　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Network Management Support Mechanism by Active Information Resource

Kato Shinya, Konno Susumu, Iwaya Yukio, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　"S-9"　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Development Support Environment in Repository-based Agent Framework

Takagaki Akira, Uchiya Takahiro, Abe Toru, Kinoshita Tetsuo

Proceedings of the IEICE General Conference　2003　(1)　"S-7"　2003/03/03
Publisher: The Institute of Electronics, Information and Communication Engineers
Network Management Support System based on Active Information Resource

Susumu Konno, Shinya Kato, Yukio Iwaya, Toru Abe, Tetsuo Kinoshita

FIT2003　LG-008　135-137　2003
An Experimental Implementation of Agent-based Active Information Resource (テーマ:「インタラクティブシステムとエージェント技術」および一般)

Li Baoning, Abe Toru, Kinoshita Tetsuo

知的教育システム研究会　36　45-50　2002/10/04
Publisher: 人工知能学会
ISSN： 0918-5674
学術情報の電子化と活用支援(2.<特集>第1回情報シナジー研究会)

阿部亨, 木下哲男, 東北大学情報シナジーセンター学術情報研究部, 東北大学情報シナジーセンター学術情報研究部

年報　2　48-51　2002/07/01

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本稿では、電子化された種々の情報(本稿では情報資源と呼ぶ)の有効活用を図るべく、本研究部で検討を進めている情報資源利用環境について述べる。現在、入手や閲覧が困難な貴重図書や史料をマルチメディアデータとして電子化し蓄積する計画が各所で進められており、それらの成果物である情報資源は、学術研究だけでなく生涯教育や自己啓発など個人の社会活動においても、その積極的な活用が期待されている。しかしながら、これらを実際に利用する場面では、(1)多様な利用要求と個々の情報資源のコンテンツとを的確に照合する手段が脆弱、(2)情報資源のコンテンツに関する情報(メタ情報)を効果的に活用する手段が不十分(メタ情報を対象としたキーワード検索のレベルに留まっている)など、現行の情報資源の構造や利用ツールの機能や特性に起因する種々の問題が存在し、専門知識や専用ツールを持たない一般利用者が情報資源を探索・利用する際の大きな障害となっている。これに対し本研究部では、情報資源の構造/機能を強化する機構を実現し、情報資源の探索/統合/加工/伝達など今まで利用者に全面的に委ねられていた作業の一部を情報資源自身に代行させることで(例えば、情報資源自体が利用者の利用要求へ能動的に応答したり、他の情報資源と自律的に連携/協調を行うといった形で)、情報資源活用における前述の問題を解決することを目指している。
Active Contour Model Using A Priori Knowledge Obtained from Initial Contour

ABE Toru, MATSUZAWA Yuki, KINOSHITA Tetsuo

Technical report of IEICE. HIP　101　(513)　63-68　2001/12/11
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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To improve the accuracy of region extraction with active contour model(ACM), several methods have been proposed for using a priori knowledge about the shape of a target region. However, existing methods require training with samples of a target region or indicating the prototype of a target region, and these requirements cause a limitation on target regions and an increase of tiresome preparation. To deal with these problems, in this article, we take notice that an initial contour of ACM can include the shape information of a target region, and we propose a novel method for introducing a priori knowledge about the shape of a target region into the control of ACM. In the proposed method, by making the most of the shape information obtained from an initial contour, a priori knowledge is prepared from this shape information, and it is effectively introduced into the control of ACM.
Region Extraction Based on Clustering along An Object Contour

MATSUZAWA Yuki, KUMAZAWA Itsuo, ABE Toru

Technical report of IEICE. PRMU　100　(702)　87-94　2001/03/16
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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For accurate and robust region extraction, region-based active contour models (ACM) have been proposed. However sufficient discussion has not been conducted on efficient and effective measures to introduce image properties into controlling ACM. Therefore, existing methods have problems on their processing time and the preciseness of their extraction. Considering these problems, we propose a method which introduces image properties into extraction processes effectively and efficiently by iterating clustering of region along an object contour and control of ACM. In the proposed method, the processing time is reduced by limiting the processing area to the region along an object contour. In addition, the preciseness of extraction is improved by clustering the limited region into subregions of appropriate sizes.
Corner detection based on edge and geometry information

Etou Yasutaka, Sugiyama Takahiro, Abe Keiichi, Abe Toru

Proceedings of the IEICE General Conference　2001　(2)　174-174　2001/03/07
Publisher: The Institute of Electronics, Information and Communication Engineers
階層分割型半球法を用いた並列ラジオシティ法

菅原淳, 阿部亨, 堀口進

Research report　2000　1-25　2000/03/27
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
An Ortho-image Producing Method from Multiple Images in Close Range Photogrammetry

CHIDA Masumori, HORIGUCHI Susumu, ABE Toru

IEICE technical report. Natural language understanding and models of communication　99　(707)　39-46　2000/03/16
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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In an ortho-image, by recovering 3D information from multiple images, objects are projected orthogonally onto the image plane. To evaluate the difference between the real shape of an object and the model(e.g., CAD model, previous mesurements, etc.)quantitatively and visually, the ortho-images are needed in the field of close range Photogrammetry(e.g., industrial production and civil engineering). However, existing ortho-image producing techniques are based on aerial photogrammetry, they cannot be applied for the objects in close range photogrammetry. In this article, to solve this problem, a 3D measurement method in close range photogrammetry is proposed. The proposed method assumes that the model of an ofject is known, and this method applies DLT method to orientation, voting method to 3D measurement, and bundle adjustment method to orientation and measurement iteratively.
Performance of A Fair Bandwidth Allocation Scheme WFQMM on Resource reSerVation Protocol

MATSUNAGA Y., YAMAMORI K., ABE T., HORIGUCHI S.

Technical report of IEICE. SSE　99　(674)　111-116　2000/03/09
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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Since a large bandwidth is necessary for a high-quality communication, the bandwidth allocation scheme has been investigating. We presented a fair bandwidth allocation scheme: WFQMM (WFQ with the Maximum and Minimum bandwidth) by introducing the maximum and minimum required bandwidth into WFQ (Weighted Fair Queuing). In this paper, we discuss the performance of the WFQMM based on simulation using M / M / s model. It is seemed that WFQMM gives a good satisfied ratio (an average bandwidth) than a conventional bandwidth allocation scheme. A detailed simulation shows that WFQMM much improves transmission delay.
A Fair Bandwidth Allocation Scheme WFQ on Resource reSerVation Protocol

MATSUNAGA Yasuyoshi, ABE Toru, HORIGUCHI Susumu

IEICE technical report. Information networks　99　(437)　43-48　1999/11/19
Publisher: The Institute of Electronics, Information and Communication Engineers
ISSN： 0913-5685

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In recent years a computer network guaranteed bandwidth is required for a multi-media communication. RSVP (Resource reSerVation Protocol) is used for multi-medeia communication on the IP network. Large bandwidth is necessary for high-quality communication, bandwidth allocation scheme has been investigating. In this article we present a fair bandwidth allocation scheme using WFQ (Weighted Fair Queueing). A simulation result using M/M/S model shows a good satisfied ratio (an average bandwidth) comparing with guaranteed bandwidth on a first-come-first-served basis.
Virtual - Channel Flow Control of Hierarchicial Interconnection

MIURA Yasuyuki, ABE Tohru, HORIGUCHI Susumu

IPSJ SIG Notes　1999　(41)　43-48　1999/05/21
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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A hierarchical interconnection network:TESH (Tori connected mESHes) consists of torus interconnection between meshes as a basic module (BM), and allows exploitation of computational locality. To implement a wormhole routing on TESH, an appropriate method is required to allocate virtual links on a basic module, since the number of virtual channels depend on allocation policy. This paper addresses a link allocation policy that minimizes the network diameter and the number of virtual channels. Dynamic communication performances are simulated for TESH and mesh networks. It is seen that the dynamic communication performance of TESH is better than mesh interconnection.
Landmark Recognition with Eigen-Window

MURAKAMI Sanae, HORIGUCHI Susumu, ABE Toru

Technical report of IEICE. PRMU　98　(678)　17-24　1999/03/19
Publisher: The Institute of Electronics, Information and Communication Engineers

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To estimate current location from an input image, a method for recognizing landmarks in the image with the eigen-window technique is described. In the eigen-window technique, small windows called eigen-window are set in an input image, and these windows are compared with the eigen-window in the training images. In this article, we propose a method to select the eigen-window regions that are suitable for object recognition and parameter estimation from an input image. Furthermore, we propose a novel method for hierarchical-clustering of eigen-window, and to improve searching efficiency of the eigen-window technique, we apply the proposed method to construct the tree-structured dictionaries.
エージェント指向プログラミングによる魚群アニメーション

大峯誠, 阿部亨, 堀口進

Research report　99　1-21　1999/02/26
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
Region Extraction by Competition of Multiple Active Contour Models

MATSUZAWA Yuki, HORIGUCHI Susumu, ABE Toru

Technical report of IEICE. PRMU　98　(527)　51-58　1999/01/21
Publisher: The Institute of Electronics, Information and Communication Engineers

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Most of region extraction methods using active contour model deform the contour model according to the local information along contours. For this reason it is difficult to extract a region with complex shape or varying texture by these methods. In this article, to use the global information for region extraction, a method using competition of multiple active contours is proposed. In the proposed method, multiple active contour models are set in the object and the background regions respectively. For a region in each contour model, the likelihood is estimated from the distribution of feature value. By the likelihood-based competition between regions, an object region is extracted as a set of regions. The effectiveness of the proposed method was confirmed by experiments of artificial and real images.
Virtual - Channel Flow Control of Wormhole Routing

MIURA Yasuyuki, ABE Tohru, HORIGUCHI Susumu

IPSJ SIG Notes　1998　(115)　59-64　1998/12/11
Publisher: Information Processing Society of Japan (IPSJ)

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To reduce communication latency, virtual channel is introduced into parallel computers, and Round-Robin is adapted as a virtual channel flow control. However, Round-Robin policy increases large delay for a wormhole routing on parallel computers. We propose new policies of virtual channel flow control based on priority to improve communication performance of wormhole routing. This paper addresses new control policies; preempt and improved preempt for the priority-based flow control. Simulation results show that the preempt policy can increase throughput, and reduce communication latency.
A Hardware System of Self-Reconfigurable 2D-Mesh Multiprocessor

YAMADA Junya, ABE Toru, HORIGUCHI Susumu

Technical report of IEICE. VLD　98　(446)　1-8　1998/12/10
Publisher: The Institute of Electronics, Information and Communication Engineers

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To achieve high-performance computing for large scale advanced applications, many researchers have been studying massively parallel computers consisting of a large number of processing elements (PEs). A Fault-tolerance is one of the critical problems to construct massively parallel computers. Several reconfiguration architectures using spare PEs, tracks and switches have been proposed for 2D-mesh multiprocessor systems. Several reconfiguration schemes of 2D-mesh array theoretically discussed by only simulations. However, a hardware implementation of the reconfiguration algorithms to achieve fault-tolerance have not been studied yet. We propose new hardware systems to achieve self-reconfiguration of 2D-mesh multiprocessor systems. The hardware systems are implemented on FPGAs and evaluated on reconfiguration times and the number of gates required for redundant circuits.
Visual Pose Estimation based on Dissipative System Theory

MARUYAMA Akira, ABE Toru, FUJITA Masayuki

IPSJ SIG Notes. CVIM　1998　(79)　25-32　1998/09/17
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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This paper deals with the visual pose estimation problem : Given a sequence of images taken from a camera, reconstruct the relative pose between the camera and the environment. The visual pose estimation can be cast within the framework of nonlinear systems. The existing methods have applied the extended Kalman filtering algorithm to the pose estimation. We propose a visual pose observer based on the dissipative system theory. The nonlinear observer is described by a vector field on the manifold SE (3) and has the optimality in the sense of the L_2 gain. Further, we show the exponential convergence of the estimated value. It is important key role that the potential function on SE (3) which is exploited to the control of the mechanical systems. Finally the effectiveness of the proposed observer and L_2 gain performance is confirmed by the simulations.
A High-Speed Defect Compensation of Multi-Layer Neural Networks by the Partial Retraining

YAMAMORI Kunihito, ABE Toru, HORIGUCHI Susumu

Technical report of IEICE. HIP　98　(130)　79-86　1998/06/18
Publisher: The Institute of Electronics, Information and Communication Engineers

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In this paper, we discuss the ability of the partial-retraining scheme to compensate the neural networks with stuck-defects of the weight or the unit. The partial retraining scheme only adjusts the weights between a unit which is affected by the defect and the units in the lower by the 2-layer back-propagation algorithm. We show the performance of partial-retraining scheme by some simulations. As a result, the partial-retraining scheme is about 100 times faster than the 3-layer back-ptopagation algorithm to compensate 0-stuck-defect of weight between the hidden layer and the output layer.
階層化ヘミキューブを用いた並列ラジオシティ法による高速画像生成

佐藤敦, 阿部亨, 堀口進

Research report　98　1-20　1998/06/08
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
A Method for Hiding Watermark with QMF

YASUTA Sakiko, OKAMOTO Eiji, ABE Toru

IPSJ SIG Notes　1998　(54)　17-22　1998/05/29
Publisher: Information Processing Society of Japan (IPSJ)
ISSN： 0919-6072

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In recent years, the progress of Internet and digital AV equipment makes copying of digital contents easy. From this reason, copyright troubles have become a subject of discussion. In order to protect the copyright of digital contents, watermark techniques that hide the copyright information into an image are researched. Especially the method that hides watermark into the frequency domain of an image has the high security, because it is difficult to remove the copyright information from the watermarked image. In this method, a trade-off between the security and the quality of the image comes into problem. In this article, we propose a novel method for hiding watermark with QMF, and evaluate the security and the quality of the proposed method.
A Method to Construct Hierarchical Dictionary for Parametric Eigenspace Method

NAKAMURA Tomohiko, HORIGUCHI Susumu, ABE Toru

Technical report of IEICE. PRMU　97　(595)　81-88　1998/03/12
Publisher: The Institute of Electronics, Information and Communication Engineers

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In order to achieve efficient object recognition, this article proposed a new method to construct hierarchical dictionary for Parametric Eigenspace Method. In Parametric Eigenspace Method, a large set of sample images is obtained by varying a parameter(pose, size, illumination, etc.)and represented as a curve in the eigenspace, from this feature, the proposed constructing method classifies the sample images hierarchically along the curve. We construct the dictionary that has a tree structure based on the classified result and as a consequence we can reduce the cost of matching process. Furthermore each class consists of the images that have the similar parameter and feature, we can curtail the images efficiently based on the variance in each class.
Automatic 3D Extraction of Internal Organ From Helical Scan CT Images Using Level Set Method

MINAMI Masanori, KOBAYASHI Ken, HORIGUCHI Susumu, ABE Toru

Technical report of IEICE. PRMU　97　(501)　29-36　1998/01/23
Publisher: The Institute of Electronics, Information and Communication Engineers

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In this article, a method to extract 3D region of an internal organ from helical scan CT data is proposed. This method is based on Level Set Method that propagates a closed surface with speed depend on its curvatures and gradients of image intensity, and fits the surface to a shape of the target region. In Level Set Method, a form for introducing 3D curvature into the method is not obvious and the extracted region is depend on a location of an initial surface. To treat these problems, curvatures based on the shapes of cross sections and two step extracting process are proposed. In the first extracting step, propagation speed depends on the gradients of image intensity. In the second step, the speed depends on the image gradients and the surface curvatures.
Theoretical performance evaluation of parallel back-propagation algorithms

K Yamamori, T Abe, S Horiguchi

INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES AND APPLICATIONS, VOLS I-IV, PROCEEDINGS　PDPTA'98　1095-1102　1998
並列ラジオシティ法による画像生成の高速化

阿部寛之, 阿部亨, 堀口進

Research report　97　1-17　1997/03/28
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
Extraction of the Internal Organs Using Level Set Approach

HAGIWARA Hisaya, KOBAYASHI Ken, HORIGUCHI Susumu, ABE Toru

Technical report of IEICE. PRMU　96　(599)　21-28　1997/03/19
Publisher: The Institute of Electronics, Information and Communication Engineers

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A spiral scanning type CT device is a remarkable improvement on those currently in use.With a spiral scanning type CT device,it is possible to take continuous CT data along the body axis in a short time,and restore the sectional image in the arbitrary position.To use the CT data for the diagnosis efficiently,it is important to extract the region of the internal organ automatically.In this article,a method for extracting the liver region from the CT data is proposed.Proposed method is based on Level Set Approach.Initial closed curve is started inside the desired region,grown outwards with speed F,and stopped at the shape boundary.In order to stop the propagation of closed curve at the shape boundary,speed F is decided by gradient of the image and curvature of the closed curve.
Dynamic QoS Control by Agent Re-organization in Flexible Video Conference System

54　493-494　1997/03/12
動的輪郭モデルを用いた多方向に移動する複数物体の追跡に関する研究

金田丘, 阿部亨

Research report　97　1-20　1997/03/06
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
Tracking of Multiple Arbitrarily Moving Objects Using Active Contour Model

KANADA Takashi, ABE Toru, HORIGUCHI Susumu

Technical report of IEICE. PRMU　96　(492)　25-32　1997/01/24
Publisher: The Institute of Electronics, Information and Communication Engineers

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Many methods for tracking of moving object have been proposed. In those methods, it is too difficult to track multiple arbitrarily moving objects, especially in case the number of target objects will change, e.g. one or the target objects splits into multiple objects, and multiple target objects merge into one object. In this paper, a new method for tracking of multiple moving objects is proposed. To track multiple arbitrarily moving objects, a new active contour model (Snakes) is introduced. This model can be applied to split a contour into two closed lines, and merge two contours into a closed line. In the proposed tracking method, to find target objects trajectories, objects contours that are extracted from different frames by Snakes are corresponded with the feature (color, texture, etc.) of the target regions.
タシテンキョリガゾウニモトズクタンイツサンショウパタ-ンオモチイタ 3ジゲンブッタイニンシキ

Ohno Katsutoshi, Abe Toru

Research report　96　1-14　1996/03/18
Publisher: Japan Advanced Institute of Science and Technology
ISSN： 0918-7553
3次元動画像と仮想物体映像の合成

伊藤嘉昭, 阿部亨, 堀口進

Research report　96　1-18　1996/03/12
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
仮想現実空間上での3次元物体造形システム

滝口章広, 阿部亨, 堀口進

Research report　96　1-19　1996/03
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
Recognition of Manual Alphabet using a Hand Gesture Interface Device by Skeleton Model

51　257-258　1995/09/20
Automatic Texture Mapping Using Real Images for 3-Dimensional Visualization

51　(0)　329-330　1995/09/20
The way of cutting off and mapping textures at 3-Dimensional Visualization

IWATA Hideaki, ABE Toru, HORIGUCHI Susumu

IEICE technical report. Image engineering　95　(181)　1-8　1995/07/25
Publisher: The Institute of Electronics, Information and Communication Engineers

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In 3-Dimensional Visualization, texture mapping is one of the most useful techniques to represent the reality in picture images. Texture adjustment from real images and mapping on graphic images are very complicate. In this paper, we propose an automatic technique for the 3D texture mapping. It is hard to determine locations of objects by picture images. Since most virtual reality system have precise CAD data for objects, we can estimate the location information from picture images. We implement four different 3D-objects to investigate efficiency of proposed technique and confirm an advantage by experiment results.
実画像を用いたテクスチャマッピングによる3次元可視化

岩田英朗, 阿部亨, 堀口進

Research report　95　1-18　1995/06/28
Publisher: 北陸先端科学技術大学院大学
ISSN： 0918-7553
Face Image Recognition using Neural Network on Massively Parallel Computer nCUBE2

Yamamori Kunihito, Abe Toru, Horiguchi Susumu

IPSJ SIG Notes　1994　(107)　65-72　1994/12/13
Publisher: Information Processing Society of Japan (IPSJ)

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In this paper, we investigate parallel backpropagation algorithms for neural networks on massively parallel computers. We implement the parallel back propagation algorithms on the massively parallel computer nCUBE2 to evaluate the performance of three parallel models; unit-parallel model, learning-set-parallel model and pass-parallel model. It is confirmed that the learning-set-parallel model obtained much higher speed-up than others. The learning-set-parallel algorithm is applied to the image recognition of human faces. It is shown that, the computation time of edge face recognition becomes 3 times faster than mosaic face image recognition on massively parallel computer, nCUBE2.
Face Image Recognition on Parallel Neural Network

49　271-272　1994/09/20
三次元データを用いた人間の顔の自動識別

阿部亨, 阿曽弘具, 木村正行

画像ラボ　2　(10)　29-32　1991/10
Publisher: 日本工業出版
B-スプライン法による滑らかな物体のモデル化

阿部亨

信学技報, PRU87-16　1987

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Presentations 4

Design of an AR-supported System for Skill Training

Shiho Furukawa, Toshihiro Uchibayashi, Toru Abe, Takuo Suganuma

2018/09
Kinectを用いた遮蔽に頑健な転倒検出手法に関する一考察

榎村昭宏, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　2018/03/13
強化学習を用いたMPEG‐DASHにおける映像品質制御手法の設計

生出真人, 阿部亨, 阿部亨, 菅沼拓夫, 菅沼拓夫

情報処理学会全国大会講演論文集　2018/03/13
Chromosome region extraction and classification with local band patterns International-presentation

Toru Abe, Suguru Yamaguchi, Chieko Hamada, Hiromitsu Shimada, Katsutoshi Asano, Eiichi Sakai, Nobuyuki Ohba, Toshiya Satoh, Tetsuo Kinoshita

7th IEEE International Conference on Bioinformatics and Bioengineering　2007/10/14

Research Projects 15

Dependable and parallel volunteer computing systems based on a dynamic system reconfiguration

Fukushi Masaru

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: Yamaguchi University

2015/04/01 - 2018/03/31

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Toward the realization of parallel volunteer computing (VC) using personal computers (i.e. nodes) on the Internet, this research project studied the system configuration method. For realizing dependable parallel VC, we need to solve the two challenging problem: how to configure node groups for job assignment and how to cope with node defection for inter-node communication. We focus on the redundant computation which is widely employed in the current VC, and solve the two problems simultaneously by the approach of dynamically reconfiguring node groups. We implemented the prototype parallel VC system based on the approach and demonstrated the feasibility of dependable parallel VC.
Development of human harmonized information communication infrastructure based on networked based AR technologies

SUGANUMA Takuo, ABE Toru, KITAGATA Gen

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 - 2015/03/31

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We have investigated the "Human harmonized information communication infrastructure" as a basic technology to build user-centered communication systems based on the Augmented Reality (AR), focusing on the user interface function to configure information environment in humans' daily lives. Especially, we have developed "Network-supported AR technology" which realizes the following two items: (1) a communication tool by integrating many kinds of spaces, and (2) improvement of quality of services by distributed processing through the network. We created a new information communication infrastructure which supports safety information society through this project.
Parallel computation of high-accuracy scene flow based on multiview stereo

ABE TORU, FUKUSHI Masaru

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: Tohoku University

2011 - 2013

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Scene flow is 3D vector field representation of target object's motion in a real space, which can be estimated from a set of image sequences taken at different viewpoints. Recently, high-speed methods for estimating accurate scene flow are needed in widely various applications such as CG, VR, motion analysis, etc. Our research addresses this issue. As an indication of our progress, we have developed a scene flow estimation method with voxel based multiview stereo and a parallel method for performing this scene flow estimation on a PC cluster machine. Furthermore, we demonstrate the effectiveness of our developed methods through the experiments on several applications.
エージェントの協調による染色体画像からの領域抽出・同定法に関する研究

阿部亨, 木下哲男

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 萌芽研究

Institution: 東北大学

2006 - 2007

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本研究課題は,画像から染色体領域を抽出し,各染色体領域を同定する二つの処理を高精度に行う新たな手法『1本の染色体領域を複数の部分領域の連なりと見なし,画像中で各部分領域を特異的に探索するエージェントを相互に協調させ,染色体領域の抽出・同定を同時に行う』の確立を目指している.本年度は,より多様な染色体画像へ提案手法を適応させるたに以下の検討を行い,その結果を,前年度実装した試作システムへ反映し,提案手法に対する評価実験を実施した. ●小領域の探索精度は,染色体のフェーズ,染色状態など種々の要因に左右される.そこで,これらの要因が探索精度に与える影響を分析し,参照用部分バンドパターンを補正する手法を検討した.具体的には,対象画像の状態に応じ,探索に用いる参照用部分バンドパターンの輝度値と長さを補正する手法を提案した. ●探索に用いる参照用部分バンドパターンは,分割の仕方により種々のものが考えられ,その中のどれを探索に用いるかは探索精度に大きな影響を与える.そこで,ある参照用部分バンドパターンを対象画像に適用した場合の探索誤りを事前に推定する手法を検討した.これに基づき,対象画像に応じて,探索に適した参照用部分バンドパターンを事前に推定する手法の提案を行った. ●改良・拡張を行った試作システムを用いて,種々の状態(染色体領域が相互に重なる場合,染色体に構造異常が生じている場合など)をシミュレートした画像を対象とした評価実験を実施し,それらの画像に対する提案手法の有効性を確認した.
A basic study on Socialware Evolution Mechanism in Ubiquitous Environment

KINOSHITA Tetsuo, ABE Toru, IWAYA Yukio, UCHIYA Takahiro

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: Tohoku University

2005 - 2007

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A mechanism (evolution mechanism) for socialware that expands/enhances the sociaware itself to deal with various changes of both the users' requests and the systems' environment had been studied in this project, and the following results had been given. (1) An architecture of socialware designed as an organization of agents had been studied. A new concept called the evolutional agent system (EAS), which has an evolution mechanism as its component is proposed and a behavior control model of the EAS is defined to support the design of the EAS. (2) Focusing on the EAS realized by a single organization of problem solving agents, a design model of the evolution mechanism of EAS had been defined by using a meta-agent and the agent repository mechanism. (3) Using the repository-based multiagent framework, a flexible organization function of agents for EAS, a support function of interoperation of the agent system and the non-agent system (conventional information system), and a agent platform management function over the ubiquitous environment have been proposed and designed as the basis of the EAS. Moreover, the socialware components and socialware applications have been studied to get idea for designing the evolution mechanism of EAS.
能動的情報資源原理に基づくイントラネット管理手法に関する基礎研究

岩谷幸雄, 白鳥則郎, 鈴木陽一, 木下哲男, 阿部亨, 今野将

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 萌芽研究

Institution: 東北大学

2003 - 2004

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能動的情報資源(AIR : Active Information Resource)によるイントラネット管理支援システム(AIR-NMS)の概要設計について昨年度行ったが,本年度はそれに基づいての詳細設計および,情報を能動化することによる管理作業の削減効果を検証した.研究成果の概要を以下に示す. 1.ネットワーク知識の階層化管理手法本システムの実装は,マルチエージェントシステムとして行うが,我々は,物理層,TCP/IP層,アプリケーション層の3つに知識を階層化し,該当する知識層にのみメッセージを送信する方式を提案した.その結果,通信量,協調の早さ共に大きく改善されることを示した. 2.状態監視AIRの詳細設計ネットワークシステムの状態を随時監視するためのエージェントを設計した.特に,エージェントが自律的に問題状態を切り分け,他のエージェントと協調する点について詳細化し実装レベルに系統化した. 3.実験ネットワーク上の実装と効果の検証複数のルータ,サブネット,サーバ,クライアントPCなどから構成される実験ネットワークを構成し,その上で動作する状態監視AIRを100個以上作成し配置した.これらの環境を用いて,7名のネットワーク管理経験をもつ被験者に対して,管理付加軽減率を測定した.その結果,どの場合にも時間・手順数ともに8割以上の削減が可能であった.これらの結果より,ネットワークの状態情報を能動化して必要な情報を協調・連携することで選別し管理者に提示するだけでも大きな管理支援となりうることが実証できた. 本研究は,ネットワーク管理を能動的情報資源の概念に基づいて行うための基礎研究として行われた.本研究の結果に加えさらに,当該イントラネットワークに固有のノウハウを能動化して状態監視AIRと協調させることで,ネットワーク管理初心者にも優しい管理支援システムが完成するものであると考える.
RESEARCH ON ACTIVE CONTOUR MODELS USING A PRIORI KNOWLEDGE OBTAINED FROM AN INITIAL CONTOUR

ABE Toru

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: TOHOKU UNIVERSITY

2002 - 2003

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Region extraction from images is an important topic in image processing. For this issue, active contour model (ACM) has achieved considerable success. In region extraction with ACM, a user first draws a contour C around a target region and defines its evaluation (energy) function B. This C is iteratively deformed so as to decreases B, and the deformed C that minimizes E is extracted as a target region boundary. Since naive ACM evaluates only the certainty that C is located on a region boundary, when an image has several object regions, there is no guarantee that C is deformed to correspond with the target region boundary. To solve this problem, several methods have been proposed for employing the a priori knowledge of a target region shape. However, the existing methods need the making of prototypes or training with samples, and thus they require time-consuming preparation work and impose tight restrictions on their target regions. To overcome the difficulties in the existing methods, we propose a novel method for employing the a priori knowledge of a target region shape. The proposed method is based on an idea that an initial value of C (an initial contour Cini drawn around a target region by a user) can include the shape features of a target region. In this method, the sequence of shape features (such as corner, line, and curve) is obtained from Cini. This sequence is encoded into a symbolic description and used as the a priori knowledge of a target region shape. During region extraction procedure, by finding the optimal assignment of the symbols (shape features) to the control points of C and determining the optimal positions for these points, the a priori knowledge is reflected on the extracted region shape.
RESEARCH ON A REGION EXTRACTION METHOD USING MULTIPLE ACTIVE CONTOUR MODELS

ABE Toru

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

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

2000 - 2001

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To extract object regions from images, the methods using region-based active contour model (ACM) have been proposed. By controlling ACM with the statistical characteristics of the image properties in regions, these methods effect robust region extraction. However, the existing methods require redundant processing and cannot adapt to complex scene images. To achieve efficient and accurate region extraction, we proposed a new method for controlling region-based ACM. In the proposed method, to prevent redundant processing, a definite support area is set along an object boundary, and ACM is controlled by the statistical characteristics of the image properties in this area. Furthermore, to improve the accuracy of region extraction, the proposed method performs clustering on the support area and introduces this result into ACM control. Consequently, the image properties in a necessary and sufficient area can be effectively reflected on the region extraction process by the proposed method. Through the region extraction experiments, we confirmed the effectiveness of the proposed method. In the existing region-based ACMs, since it is difficult to determine the appropriate search areas, the search areas have been set heuristically. For this difficulty, the proposed method can determine the appropriate sizes and locations of the search areas in parallel to an object boundary. However, in perpendicular to an object boundary, the proposed method cannot determine the appropriate search area sizes. To deal with this problem, in addition to the characteristics of the image properties, a priori knowledge of an object shape should be introduced efficiently into ACM control.
Super-Reality Tele-Interaction Using Haptic Environments

HORIGUCHI Susumu, HAYASHI Ryouko, INOGUCHI Yasushi, ABE Touru, AOKI Yusuke, YONEZAWA Yuji

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for University and Society Collaboration

Institution: Japan Advanced Institute of Science and Technology

1999 - 2001

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The virtual reality (VR) becomes an active area of research as tele-interaction in recent years due to the advanced progress in broadband network. Virtual environment (Haptics) system with force feedback and the sense of tough allows users feeling of manipulating virtual objects. Thus, haptic research can potentially benefit a wide range of virtual reality application as in medical simulation, training, telemanipulation and applications for handicapped and blind community. This research addresses the Super-Tele-Interaction system architecture of multi-user remote communication in, virtual environment to make 3D objects in shared virtual environments. Users can experience touching and manipulating virtual objects, but also feel their haptics such as weight, surface smoothness, and compliance. Super-Tele-Interaction system consisting of haptic virtual reality and telecommunication is closely related to the network-based shared virtual environment (SVE) and can achieve multiple virtual worlds connected by the network to share information with one another. JAIST research group has developed and e implemented the network-based SVE to design 3D objects by multi users. INTEC research group has developed the haptic painting system in VR for traditional applied fine arts. IRII research group implemented the 3D-object design system in VR using pressure sensor array. We have also implemented VR robotics system for tele-interaction though the internet and proposed the haptics control system between network-robots and VR-robots. These research results are basic technology to realize the collaborative shared haptic virtual environment and super-reality tele-interaction system.
動的体積モデルを用いた三次元CTデータからの臓器領域抽出法に関する研究

阿部亨

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: 北陸先端科学技術大学院大学

1997 - 1998

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今年度の研究では,前年度に提案した肝臓の三次元領域抽出手法に対し,以下に述べる実験を行い領域抽出の安定性および精度について評価を行った. 1. 領域抽出の安定性評価抽出結果が初期伝搬面の設定位置に存在する問題に対し,本手法の有効性を評価するため,異なる位置初期伝搬面を設定し抽出される三次元領域がどの程度一致するかを比較した.二つの抽出領域X,Yの一致の度合として,C=N(X∩Y)N(X∪Y)で定義される値Cを用いる.ここでX∩Y=XとYの両方に含まれる領域,X∪Y=XまたはYに含まれる領域,N(Z)=領域Z内に含まれる格子点数である.一致度Cは,0【less than or equal】C【less than or equal】1であり,1に近いほど二つの領域が一致している(初期伝搬面の設定位置の影実験結果より,本研究で提案した速度関数の切り換え,および一旦伝搬面を対象の大まかな形状に適応させた後でより細かな形状へ適応させる二段階抽出処理を用いることで,初期伝搬面の設定位置の影響を受け難い領域抽出が可能となることが確認された. 2. 抽出精度の評価提案手法の領域抽出精度を評価するため,各断面画像ごとに二次元のLevel Set Methodを適用し二次元抽出を行った場合との抽出精度の比較を行った.医師が各断面画像について判定した肝臓領域を正解とし,医師が判定した領域と自動抽出された領域の一致度Cにより領域抽出精度を評価した. 実験結果より,提案手法を用いることで伝搬面の対象領域からのはみ出しが抑えられ,従来の二次元抽出法に比較し抽出法に比較し抽出精度が向上できることが確認された.
複数視点から計測された二次元画像情報・三次元構造情報の統合に関する研究

阿部亨

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: 北陸先端科学技術大学院大学

1996 - 1996

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今年度行った研究により,複数視点から計測された二次元画像情報・三次元構造情報の統合に関し以下の成果が得られた. 1.二次元画像情報と三次元構造情報の統合手法の開発各々別個に計測された二次元情報と三次元情報とを統合するため,二次元データと三次元データを各々領域分割し,得られた領域を自動的に対応づける手法について検討を行った.特に,滑かな曲面により構成される三次元物体を曲率に基づき領域分割する手法,二次元データおよび三次元データから抽出された領域中の特徴点を基に,両者の対応する箇所を自動的に対応づける手法を提案した. 2.三次元統合画像情報の領域分割三次元統合画像情報の応用法を探るため,三次元CTデータを例にとり,三次元CTデータから対象とする臓器領域を三次元的に抽出する手法について検討を行った.本研究では,Level Set Methodを三次元に拡張することで,CTデータが持つ対象の三次元構造情報を有効に利用する領域抽出手法を提案した.実験の結果,提案手法は,二次元画像(CTデータより得られる断面画像)を対象としていた従来の領域抽出手法に比べ,より高い精度で領域の抽出が可能であることが明らかになった. 3.時間軸方向への拡張に関する検討三次元統合画像情報を時系列データとして拡張するためには,時系列二次元情報・三次元情報中の対象物体を認識する手法の確立が必須となる.本研究では,動的輪郭モデルを用い,時系列二次元画像中から複数の移動対象物体を抽出し追跡する手法について提案を行った.また,オプティカルフローを用いることにより,運動している多関節物体の各関節を領域分割し,対象全体の姿勢・運動を認識する手法について提案を行った.
Study on Massively Parallel Simulations and Visualizations

HORIGUCHI Susumu, ABE Toru, KOBAYASHI Hiroaki, ABE Masato, KAWAZOE Yoshiyuki, TANNO Kuninobu

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: JAPAN ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY,Hokuriku

1995 - 1996

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Computer simulations have been important and are frequently used in advanced science and technology. Advanced simulations require large computation times and huge memory capacities of computers. Massively parallel computers have been attractive for advanced simulations instead of supercomputers in this decade. Parallelized simulations, however, have not been studied sufficiently and the visualizations of simulation results also have been more important recently. The study on massively parallel simulations and visualizations focuses on the advanced scientific field such as physics, Chemistry, Material Science, Fluid Dynamics and Neural Networks, We implemented many parallelized simulations on massively parallel computers : CM-5, ncube2 and Parsytec GC and demonstrated visualization of simulation results by Computer Graphics. To achieve high-speed parallel simulations, we developed the dynamics load balancing method for Molecular Dynamics on CM-5, the global communication method for room illlumination simulation by Radiosity on Parsytec GC,and the packed message passing method for neural network on ncube2. We also snow the effective visualizations of huge simulation data using 3D computer graphics.
3次元統合画像データの計測および表現方法に関する研究

阿部亨

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: 北陸先端科学技術大学院大学

1995 - 1995

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今年度行った研究により,3次元統合画像データの計測および表現方法に関して,以下の成果が得られた. 1.色符号化スリット光投影法および計測実験装置の改良対象物体の全周形状を容易に計測するため,計測装置のカメラ・光源から見て不可視となる領域を削減する手法について検討を行った.本研究では,対象物体の背後に鏡を配置することで,計測不可能となる領域を減少させ,1回の撮影で計測可能な領域の拡大を図り,その際,対象物体・カメラ・光源・鏡の最適な配置について明らかにした. 2.多視点から計測された3次元形状データの統合手法の検討色符号化スリット光投影法および計測実験装置の改良により,1回の撮影で計測可能な領域が大幅に拡大された.しかし,対象物体の全周形状を計測するためには,最低2回程度同一物体を異なる視点から計測し,得られた複数の3次元データを一つに統合する必要がある.そこで,本研究では,3次元データを接続された面の集合と見なし,面の関係をグラフで表現したデータを基に,総合を行う手法に関して検討を行った.その際,効率良く統合を行うためのデータ構造および各面の特徴を記述するための属性を提案した. 3.2次元画像情報と3次元構造情報の統合手法の開発各々別個に計測された2次元情報と3次元情報とを統合するため,2次元データと3次元データを各々領域分割し,得られた領域を自動的に応対づける手法について検討を行った.その際、エッジの存在・面の曲率等により3次元データを分割する手法,2次元データおよび3次元データから抽出された領域中の特徴点を基に、両者の対応する箇所を自動的に対応づける手法を提案した.
Super-Reality Systems based on 3D-Computer Graphics

HORIGUCHI Susumu, NUMATA Issei, ABE Toru, TANNO Kuninobu

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

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

Institution: Japan Advanced Institute of Sceince and Technology, Hokuriku

1994 - 1995

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In recent years, we hava many opportunity to use 3D data in various fields and have been expecting the technologies that help understand 3D data easily. One of the most efficient method is visualize 3D data into 3D computer graphics. The 3D visualization much helps human beings to understand exact informations from a huge data. One of the fields to extremely required these technologies is the environment assessment to such as scenery projection systems. These fields are necessary for a method to composite 3D-images using real scenery and virtual objects. Many researchers have been studing 3D-image synthesizing systems. Typical techniques are classified into four schemes ; shading, shadowing, fractal and texture mapping. As one of the typical techniques, an image synthesis system using real scenery and computer graphics has been expected. In the 3D-image system using both real scenery and computer graphics, we have proposed a new strategy to measure positions and shapes of real objects and to obtain CAD data of real objects. The startegy releases human beings much works to make CAD data for synthesizing 3D-images. Further, it can save a lot of computation times required for rendering of 3D-images. Positions of real object is estimated by labeling each domain of real image and measuring the center position of each domain. A distance between a domain and the camera is derived by obtaining a center position of a domain All domains of real objected are sorted according to the distance from the camera. Virtual objects to be composed with domains which real objects are divided into similarly. The most far domain from the camera among those domains is painted over the screen and so on. The canceled rendering process is executed by painting domain over the screen. To develope the super-reality using 3D-computer graphics, we have proposed a new method to obtain textures from real images and to map the textures on 3D-CAD data automatically. It is seen that the automatic texture cuting can save much works and the automatic texture mapping achieves super-reality for 3D-computer graphics. Howevere, these strategies are only applied to the 3D-objects with simple shape. It is a future work to develop the strategy applying to objects with complex shapes.
Self-Reconfigurable Massively Parallel Computer on Stacked Wafers

HORIGUCHI Susumu, NUMATA Issei, ABE Touru, TANNO Kuninobu, KOBAYASHI Hiroaki, ASO Hirotomo, JAIN Vijay k., KIM Jung h., TAKETA Hiroshi, SHIMODAIRA Hiroshi, THOMAS Knight jr., FABRIZIO Lambardi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for international Scientific Research

Institution: JAPAN ADVANCED JNSTITUTE of SCIENCE and Technology, Hokuriku

1993 - 1995

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This research deals with a 3D-mesh array on stacked wafers and its fault tolerant architecture. The architecture of 3D-mesh arrays provides a self-reconfiguration of interconnections using a recursive shift scheme. Anuj Chandra et al. also proposed a reconfigurable algorithm for 3D 1/ track model based on a compensation path scheme that was originally proposed S.Y.Kung et al. The 3D 1/ track model was, however, discussed only from the theoretical view points of extension of the 2D 1/ track model. This paper examines its fault tolerant performance to obtain the system yield of a 3D-mesh array using a self-reconfiguration scheme. First, we reviews recent WSI devices to construct massively parallel computers and summarize the merit of WSI parallel computers. Next. we deal with the mesh-connected multiprocessor architecture and reconfiguration stategies to enhance the array yield for WSI implementation. Reconfiguration performance of a mesh-connected parallel computer is discussed by comparing it to previous works. WSI implementation of a cube-connected cycles (CCC) is addressed and its yield performance is discussed by taking into account the chip area of the PEs, switches, and links. We also propose a new interconnection network HCQ based on a crossed cube interconnection to reduce the diameter and the average distance of the interconnection network. The excellent network property of HCQ is theoretically investigated. Finally, we discussed a 3D-mesh array on stacked wafers for massively parallel computers. A reconfiguration algorithm based on a recursive shift scheme is proposed. Applying the recursive shift scheme to a 3D-mesh array, it is shown that the reconfiguration performance becomes high and provides the possibility to construct a massively parallel computer on stacked wafers like as the 3D-mesh array.

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高精度な核型自動分析システムの開発

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高精度な核型自動分析システムの開発
分散型マルチエージェントフレームワークに基づいた学術情報利用支援システムの研究

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分散型マルチエージェントフレームワークに基づいた学術情報利用支援システムの研究
『能動的情報資源』の概念を用いたイントラネット管理支援機構の研究

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『能動的情報資源』の概念を用いたイントラネット管理支援機構の研究