IEICE Trans

Takeshi IKENAGA

High Temporal Resolution-Based Temporal Iterative Tracking for High Framerate and Ultra-Low Delay Dynamic Tracking System Tingting HU Ryuji FUCHIKAMI Takeshi IKENAGA
Publication: Publication Date: 2022/05/01 Vol. E105-D No. 5 pp. 1064-1074 Type of Manuscript: PAPER Category: Image Processing and Video Processing Keyword: high frame rate and ultra-low delay visual system, Lucas Kanade, template tracking, FPGA,
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Efficient Data Diffusion and Elimination Control Method for Spatio-Temporal Data Retention System Shumpei YAMASAKI Daiki NOBAYASHI Kazuya TSUKAMOTO Takeshi IKENAGA Myung J. LEE
Publication: Publication Date: 2021/07/01 Vol. E104-B No. 7 pp. 805-816 Type of Manuscript: Special Section PAPER (Special Section on Future Directions of Research and Development on Communication Quality) Category: Keyword: STD, data retention, diffusion and elimination, dynamic transmission interval control,
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An Approach for Identifying Malicious Domain Names Generated by Dictionary-Based DGA Bots Akihiro SATOH Yutaka NAKAMURA Yutaka FUKUDA Daiki NOBAYASHI Takeshi IKENAGA
Publication: Publication Date: 2021/05/01 Vol. E104-D No. 5 pp. 669-672 Type of Manuscript: Special Section LETTER (Special Section on the Architectures, Protocols, and Applications for the Future Internet) Category: Keyword: dga bot, dictionary-based domain generation algorithm, domain name, network security,
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Transmission Control Method for Data Retention Taking into Account the Low Vehicle Density Environments Ichiro GOTO Daiki NOBAYASHI Kazuya TSUKAMOTO Takeshi IKENAGA Myung LEE
Publication: Publication Date: 2021/04/01 Vol. E104-D No. 4 pp. 508-512 Type of Manuscript: LETTER Category: Information Network Keyword: Internet of Things, spatio-temporal data, local production and consumption of data, data retention,
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Geolocation-Centric Information Platform for Resilient Spatio-temporal Content Management Kazuya TSUKAMOTO Hitomi TAMURA Yuzo TAENAKA Daiki NOBAYASHI Hiroshi YAMAMOTO Takeshi IKENAGA Myung LEE
Publication: Publication Date: 2021/03/01 Vol. E104-B No. 3 pp. 199-209 Type of Manuscript: INVITED PAPER (Special Section on Fusion of Network Virtualization/Softwarization and Artificial Intelligence towards Beyond-5G Innovative IoT Services) Category: Network Keyword: geolocation-centric, cross-domain data fusion, local production for local consumption,
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Body Part Connection, Categorization and Occlusion Based Tracking with Correction by Temporal Positions for Volleyball Spike Height Analysis Xina CHENG Ziken LI Songlin DU Takeshi IKENAGA
Publication: Publication Date: 2020/12/01 Vol. E103-A No. 12 pp. 1503-1511 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Vision Keyword: volleyball analysis, spike height, body part connection, body part categorization, result correction,
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Adaptive Server and Path Switching for Content Delivery Networks Hiroyuki NISHIMUTA Daiki NOBAYASHI Takeshi IKENAGA
Publication: Publication Date: 2020/11/01 Vol. E103-D No. 11 pp. 2389-2393 Type of Manuscript: LETTER Category: Information Network Keyword: CDN, route control, server selection, quality of service,
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Temporal Constraints and Block Weighting Judgement Based High Frame Rate and Ultra-Low Delay Mismatch Removal System Songlin DU Zhe WANG Takeshi IKENAGA
Publication: Publication Date: 2020/06/01 Vol. E103-D No. 6 pp. 1236-1246 Type of Manuscript: Special Section PAPER (Special Section on Machine Vision and its Applications) Category: Keyword: high frame rate, ultra-low delay, image matching, mismatch removal, temporal constraints, block weighting judgement,
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Temporally Forward Nonlinear Scale Space for High Frame Rate and Ultra-Low Delay A-KAZE Matching System Songlin DU Yuan LI Takeshi IKENAGA
Publication: Publication Date: 2020/06/01 Vol. E103-D No. 6 pp. 1226-1235 Type of Manuscript: Special Section PAPER (Special Section on Machine Vision and its Applications) Category: Keyword: high frame rate, ultra-low delay, A-KAZE matching, temporally forward nonlinear scale space,
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3D Global and Multi-View Local Features Combination Based Qualitative Action Recognition for Volleyball Game Analysis Xina CHENG Yang LIU Takeshi IKENAGA
Publication: Publication Date: 2019/12/01 Vol. E102-A No. 12 pp. 1891-1899 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image Keyword: volleyball game analysis, qualitative action recognition, 3D global feature, multi-view local feature, combination framework,
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Adaptive-Partial Template Update with Center-Shifting Recovery for High Frame Rate and Ultra-Low Delay Deformation Matching Songlin DU Yuhao XU Tingting HU Takeshi IKENAGA
Publication: Publication Date: 2019/12/01 Vol. E102-A No. 12 pp. 1872-1881 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image Keyword: high frame rate, ultra-low delay, image matching, deformable object, adaptive-partial template update, center-shifting recovery,
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Representative Spatial Selection and Temporal Combination for 60fps Real-Time 3D Tracking of Twelve Volleyball Players on GPU Xina CHENG Yiming ZHAO Takeshi IKENAGA
Publication: Publication Date: 2019/12/01 Vol. E102-A No. 12 pp. 1882-1890 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image Keyword: GPU acceleration, 60fps tracking system, particle filter, 3D volleyball players tracking, sports analysis,
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Clustering Malicious DNS Queries for Blacklist-Based Detection Akihiro SATOH Yutaka NAKAMURA Daiki NOBAYASHI Kazuto SASAI Gen KITAGATA Takeshi IKENAGA
Publication: Publication Date: 2019/07/01 Vol. E102-D No. 7 pp. 1404-1407 Type of Manuscript: LETTER Category: Information Network Keyword: malware, blacklist, DNS query, machine learning,
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A Dynamic Channel Switching for ROD-SAN Daiki NOBAYASHI Yutaka FUKUDA Kazuya TSUKAMOTO Takeshi IKENAGA
Publication: Publication Date: 2019/05/01 Vol. E102-D No. 5 pp. 920-931 Type of Manuscript: Special Section PAPER (Special Section on the Architectures, Protocols, and Applications for the Future Internet) Category: Keyword: wireless sensor and actuator networks, ROD-SAN, channel switching,
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TCP Using Adaptive FEC to Improve Throughput Performance in High-Latency Environments Yurino SATO Hiroyuki KOGA Takeshi IKENAGA
Publication: Publication Date: 2019/03/01 Vol. E102-B No. 3 pp. 537-544 Type of Manuscript: PAPER Category: Network Keyword: TCP, FEC, redundancy control, congestion control, interleave control,
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View Priority Based Threads Allocation and Binary Search Oriented Reweight for GPU Accelerated Real-Time 3D Ball Tracking Yilin HOU Ziwei DENG Xina CHENG Takeshi IKENAGA
Publication: Publication Date: 2018/12/01 Vol. E101-D No. 12 pp. 3190-3198 Type of Manuscript: PAPER Category: Image Recognition, Computer Vision Keyword: real-time, Graphics Processing Unit (GPU), parallelism, thread allocation, particle filter, ball tracking,
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Hierarchical Progressive Trust Model for Mismatch Removal under Both Rigid and Non-Rigid Transformations Songlin DU Takeshi IKENAGA
Publication: Publication Date: 2018/11/01 Vol. E101-A No. 11 pp. 1786-1794 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image, Vision Keyword: visual correspondence, image matching, mismatch removal, hierarchical progressive trust,
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Court-Divisional Team Motion and Player Performance Curve Based Automatic Game Strategy Data Acquisition for Volleyball Analysis Xina CHENG Takeshi IKENAGA
Publication: Publication Date: 2018/11/01 Vol. E101-A No. 11 pp. 1756-1765 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Systems and Control, Vision Keyword: volleyball game analysis, strategy data acquisition, team status, attack performance variables,
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Pixel Selection and Intensity Directed Symmetry for High Frame Rate and Ultra-Low Delay Matching System Tingting HU Takeshi IKENAGA
Publication: Publication Date: 2018/05/01 Vol. E101-D No. 5 pp. 1260-1269 Type of Manuscript: Special Section PAPER (Special Section on Machine Vision and its Applications) Category: Machine Vision and its Applications Keyword: high frame rate and ultra-low delay image processing, local binary feature based matching, keypoint orientation calculation, FPGA,
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Multi-Peak Estimation for Real-Time 3D Ping-Pong Ball Tracking with Double-Queue Based GPU Acceleration Ziwei DENG Yilin HOU Xina CHENG Takeshi IKENAGA
Publication: Publication Date: 2018/05/01 Vol. E101-D No. 5 pp. 1251-1259 Type of Manuscript: Special Section PAPER (Special Section on Machine Vision and its Applications) Category: Machine Vision and its Applications Keyword: 3D ball tracking, GPU acceleration, heterogeneous computing, OpenCL, particle filter, sports analysis,
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AIGIF: Adaptively Integrated Gradient and Intensity Feature for Robust and Low-Dimensional Description of Local Keypoint Songlin DU Takeshi IKENAGA
Publication: Publication Date: 2017/11/01 Vol. E100-A No. 11 pp. 2275-2284 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Vision Keyword: local keypoint descriptor, gradient magnitude, gradient orientation, intensity comparison, image matching,
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Robust Ghost-Free High-Dynamic-Range Imaging by Visual Salience Based Bilateral Motion Detection and Stack Extension Based Exposure Fusion Zijie WANG Qin LIU Takeshi IKENAGA
Publication: Publication Date: 2017/11/01 Vol. E100-A No. 11 pp. 2266-2274 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image Processing Keyword: high-dynamic-range imaging (HDRI), visual salience, motion detection, ghost removal, exposure fusion,
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Ball State Based Parallel Ball Tracking and Event Detection for Volleyball Game Analysis Xina CHENG Norikazu IKOMA Masaaki HONDA Takeshi IKENAGA
Publication: Publication Date: 2017/11/01 Vol. E100-A No. 11 pp. 2285-2294 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Vision Keyword: volleyball game analysis, 3D ball tracking, event detection, parallel system,
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Multi-View 3D Ball Tracking with Abrupt Motion Adaptive System Model, Anti-Occlusion Observation and Spatial Density Based Recovery in Sports Analysis Xina CHENG Norikazu IKOMA Masaaki HONDA Takeshi IKENAGA
Publication: Publication Date: 2017/05/01 Vol. E100-A No. 5 pp. 1215-1225 Type of Manuscript: PAPER Category: Vision Keyword: sports analysis, multi-view 3D ball tracking, abrupt motion, occlusion, tracking recovery,
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Full-HD 60fps FPGA Implementation of Spatio-Temporal Keypoint Extraction Based on Gradient Histogram and Parallelization of Keypoint Connectivity Takahiro SUZUKI Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2016/11/01 Vol. E99-A No. 11 pp. 1937-1946 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Vision Keyword: hardware architecture, keypoint extraction, SIFT, cloud, video recognition,
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ROD-SAN: Energy-Efficient and High-Response Wireless Sensor and Actuator Networks Employing Wake-Up Receiver Hiroyuki YOMO Takahiro KAWAMOTO Kenichi ABE Yuichiro EZURE Tetsuya ITO Akio HASEGAWA Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2016/09/01 Vol. E99-B No. 9 pp. 1998-2008 Type of Manuscript: Special Section PAPER (Special Section on Integration Technologies of Ambient Intelligence and Sensor Networks) Category: Keyword: wireless sensor and actuator networks, wake-up receiver, duty-cycling, experimental prototype and implementation,
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Hardware Oriented Enhanced Category Determination Based on CTU Boundary Deblocking Strength Prediction for SAO in HEVC Encoder Gaoxing CHEN Zhenyu PEI Zhenyu LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2016/04/01 Vol. E99-A No. 4 pp. 788-797 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: HEVC, sample adaptive offset, category determination, hardware oriented,
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A New Approach to Identify User Authentication Methods toward SSH Dictionary Attack Detection Akihiro SATOH Yutaka NAKAMURA Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2015/04/01 Vol. E98-D No. 4 pp. 760-768 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security―Against Cyberattacks―) Category: Authentication Keyword: SSH dictionary attack, user authentication method, flow analysis, network operation,
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Fast Mode and Depth Decision for HEVC Intra Prediction Based on Edge Detection and Partition Reconfiguration Gaoxing CHEN Lei SUN Zhenyu LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/11/01 Vol. E97-A No. 11 pp. 2130-2138 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Keyword: HEVC, intra prediction, partitioning, mode decision, gradient,
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A Mode Mapping and Optimized MV Conjunction Based H.264/SVC to H.264/AVC Transcoder with Medium-Grain Quality Scalability for Videoconferencing Lei SUN Zhenyu LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/02/01 Vol. E97-A No. 2 pp. 501-509 Type of Manuscript: Special Section PAPER (Special Section on Image Media Quality) Category: Keyword: SVC-to-AVC transcoding, MGS scalability, mode mapping, MV conjunction, videoconferencing,
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Low-Complexity Hybrid-Domain H.264/SVC to H.264/AVC Spatial Transcoding with Drift Compensation for Videoconferencing Lei SUN Zhenyu LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2013/11/01 Vol. E96-A No. 11 pp. 2142-2153 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Image Processing Keyword: SVC-to-AVC transcoding, spatial scalability, hybrid-domain, drift compensation, videoconferencing,
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Content-Aware Write Reduction Mechanism of 3D Stacked Phase-Change RAM Based Frame Store in H.264 Video Codec System Sanchuan GUO Zhenyu LIU Guohong LI Takeshi IKENAGA Dongsheng WANG
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2013/06/01 Vol. E96-A No. 6 pp. 1273-1282 Type of Manuscript: Special Section PAPER (Special Section on Circuit, System, and Computer Technologies) Category: Keyword: phase-change RAM (PRAM), three-dimensional stacking, H.264/AVC, write endurance,
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Low Complexity Keypoint Extraction Based on SIFT Descriptor and Its Hardware Implementation for Full-HD 60 fps Video Takahiro SUZUKI Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2013/06/01 Vol. E96-A No. 6 pp. 1376-1383 Type of Manuscript: Special Section PAPER (Special Section on Circuit, System, and Computer Technologies) Category: Keyword: keypoint extraction, SIFT, hardware implementation, FPGA, parallelizing,
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A Drift-Constrained Frequency-Domain Ultra-Low-Delay H.264/SVC to H.264/AVC Transcoder with Medium-Grain Quality Scalability for Videoconferencing Lei SUN Zhenyu LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2013/06/01 Vol. E96-A No. 6 pp. 1253-1263 Type of Manuscript: Special Section PAPER (Special Section on Circuit, System, and Computer Technologies) Category: Keyword: SVC-to-AVC transcoding, MGS scalability, frequency domain, low delay, videoconferencing,
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A Design and Prototyping of In-Network Processing Platform to Enable Adaptive Network Services Masayoshi SHIMAMURA Takeshi IKENAGA Masato TSURU
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2013/02/01 Vol. E96-D No. 2 pp. 238-248 Type of Manuscript: Special Section PAPER (Special Section on The Internet Architectures, Protocols, and Applications for Diversified Futures) Category: Keyword: adaptive network services, advanced relay node platform, advanced relay processing, provider-managed overlay networks, adaptive packet compression scheme,
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Low-Complexity Coarse-Level Mode-Mapping Based H.264/AVC to H.264/SVC Spatial Transcoding for Video Conferencing Lei SUN Jie LENG Jia SU Yiqing HUANG Hiroomi MOTOHASHI Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/05/01 Vol. E95-D No. 5 pp. 1313-1323 Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Multimedia Signal Processing Techniques and Applications) Category: Video Processing Keyword: AVC-SVC transcoding, spatial scalability, mode-mapping, low-complexity, video conferencing,
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Splitting TCP Connections Adaptively Inside Networks Masayoshi SHIMAMURA Takeshi IKENAGA Masato TSURU
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/02/01 Vol. E95-D No. 2 pp. 542-545 Type of Manuscript: Special Section LETTER (Special Section on Architectures, Protocols, and Applications for the Future Internet) Category: Keyword: new generation networks (NwGN), advanced relay nodes, adaptive split connection scheme, TCP, QoS,
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Content Based Coarse to Fine Adaptive Interpolation Filter for High Resolution Video Coding Jia SU Yiqing HUANG Lei SUN Shinichi SAKAIDA Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/10/01 Vol. E94-A No. 10 pp. 2013-2021 Type of Manuscript: PAPER Category: Image Keyword: motion compensated prediction (MCP), coarse to fine, adaptive interpolation filter (AIF),
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Fast H.264/AVC DIRECT Mode Decision Based on Mode Selection and Predicted Rate-Distortion Cost Xiaocong JIN Jun SUN Yiqing HUANG Jia SU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2011/08/01 Vol. E94-D No. 8 pp. 1653-1662 Type of Manuscript: PAPER Category: Image Processing and Video Processing Keyword: spatial DIRECT, adaptive, fast mode decision, H.264/AVC,
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Highly Parallel and Fully Reused H.264/AVC High Profile Intra Predictor Generation Engine for Super Hi-Vision 4k4k@60 fps Yiqing HUANG Xiaocong JIN Jin ZHOU Jia SU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/04/01 Vol. E94-C No. 4 pp. 428-438 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: H.264/AVC, intra prediction, hardware architecture, super hi-vision,
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A Novel Cache Replacement Policy via Dynamic Adaptive Insertion and Re-Reference Prediction Xi ZHANG Chongmin LI Zhenyu LIU Haixia WANG Dongsheng WANG Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/04/01 Vol. E94-C No. 4 pp. 468-476 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: cache replacement, set dueling, adaptive insertion, shared cache,
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Architecture and Circuit Optimization of Hardwired Integer Motion Estimation Engine for H.264/AVC Zhenyu LIU Dongsheng WANG Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/11/01 Vol. E93-A No. 11 pp. 2065-2073 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Image Processing Keyword: H.264/AVC, variable block size motion estimation, hardwired engine, very large scale integration (VLSI),
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Constant Bit-Rate Multi-Stage Rate Control for Rate-Distortion Optimized H.264/AVC Encoders Shuijiong WU Peilin LIU Yiqing HUANG Qin LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2010/07/01 Vol. E93-D No. 7 pp. 1716-1726 Type of Manuscript: Special Section PAPER (Special Section on Machine Vision and its Applications) Category: Keyword: H.264/AVC video CBR transmission, multi-stage rate control, rate-distortion optimization, Lagrange multiplier, bit allocation,
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Compressing Packets Adaptively Inside Networks Masayoshi SHIMAMURA Hiroyuki KOGA Takeshi IKENAGA Masato TSURU
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/03/01 Vol. E93-B No. 3 pp. 501-515 Type of Manuscript: Special Section PAPER (Special Section on New Generation Network towards Innovative Future Society) Category: Keyword: advanced relay node, adaptive online lossless packet compression scheme, network resource, computational resource,
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Highly Parallel Fractional Motion Estimation Engine for Super Hi-Vision 4k4k@60 fps Yiqing HUANG Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2010/03/01 Vol. E93-C No. 3 pp. 244-252 Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration) Category: Keyword: super hi-vision, H.264/AVC, FME, VLSI,
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Macroblock and Motion Feature Analysis to H.264/AVC Fast Inter Mode Decision Yiqing HUANG Qin LIU Shuijiong WU Zhewen ZHENG Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/12/01 Vol. E92-A No. 12 pp. 3361-3368 Type of Manuscript: Special Section PAPER (Special Section on Image Media Quality) Category: Coding Keyword: mode decision, H.264/AVC, feature analysis,
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Adaptive Sub-Sampling Based Reconfigurable SAD Tree Architecture for HDTV Application Yiqing HUANG Qin LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/11/01 Vol. E92-A No. 11 pp. 2819-2829 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Video Coding Keyword: reconfigurable architecture, H.264/AVC, SAD tree, VLSI, HDTV,
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VLSI Oriented Fast Motion Estimation Algorithm Based on Pixel Difference, Block Overlapping and Motion Feature Analysis Yiqing HUANG Qin LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/08/01 Vol. E92-A No. 8 pp. 1986-1999 Type of Manuscript: Special Section PAPER (Special Section on Signal Processing) Category: Realization Keyword: H.264/AVC, ME, pixel difference, block overlapping, motion feature,
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Development of Single Sign-On System with Hardware Token and Key Management Server Daiki NOBAYASHI Yutaka NAKAMURA Takeshi IKENAGA Yoshiaki HORI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2009/05/01 Vol. E92-D No. 5 pp. 826-835 Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security) Category: Authentication and Authorization Techniques Keyword: single sign-on, hardware token, key management server, authentication, security,
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Hardware-Oriented Early Detection Algorithms for 44 and 88 All-Zero Blocks in H.264 Qin LIU Yiqing HUANG Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/04/01 Vol. E92-A No. 4 pp. 1063-1071 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa) Category: Keyword: all-zero block, early detection, sum of absolute difference, hardware-oriented, H.264,
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An Ultra-Low Bandwidth Design Method for MPEG-2 to H.264/AVC Transcoding Xianghui WEI Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/04/01 Vol. E92-A No. 4 pp. 1072-1079 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa) Category: Keyword: H.264, MPEG-2, transcoding, motion estimation, search window reuse,
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High Throughput VLSI Architecture of a Fast Mode Decision Algorithm for H.264/AVC Intra Encoding Tianruo ZHANG Guifen TIAN Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/12/01 Vol. E91-A No. 12 pp. 3630-3637 Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms) Category: Embedded, Real-Time and Reconfigurable Systems Keyword: H.264/AVC, intra prediction, fast mode decision algorithm, VLSI architecture,
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A High Performance Partially-Parallel Irregular LDPC Decoder Based on Sum-Delta Message Passing Schedule Wen JI Yuta ABE Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/12/01 Vol. E91-A No. 12 pp. 3622-3629 Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms) Category: Embedded, Real-Time and Reconfigurable Systems Keyword: LDPC, message passing algorithm,
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Standard Deviation and Intra Prediction Mode Based Adaptive Spatial Error Concealment (SEC) in H.264/AVC Jun WANG Lei WANG Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/10/01 Vol. E91-A No. 10 pp. 2954-2962 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Video Coding Keyword: SEC, adaptive, standard deviation, intra prediction mode,
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Macroblock Feature Based Complexity Reduction for H.264/AVC Motion Estimation Yiqing HUANG Qin LIU Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/10/01 Vol. E91-A No. 10 pp. 2934-2944 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Video Coding Keyword: H.264/AVC, ME, similarity analysis, motion analysis,
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Variable Block Size Motion Vector Retrieval Schemes for H.264 Inter Frame Error Concealment Lei WANG Jun WANG Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/10/01 Vol. E91-A No. 10 pp. 2945-2953 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Video Coding Keyword: H.264/AVC, variable block size error concealment, motion vector refinement, directional spatio-temporal boundary matching algorithm,
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Edge Block Detection and Motion Vector Information Based Fast VBSME Algorithm Qin LIU Yiqing HUANG Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/08/01 Vol. E91-A No. 8 pp. 1935-1943 Type of Manuscript: Special Section PAPER (Special Section on Signal Processing) Category: Keyword: motion estimation, aliasing, subsampling, multiple reference frame, search range,
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Content-Aware Fast Motion Estimation for H.264/AVC Zhenyu LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/08/01 Vol. E91-A No. 8 pp. 1944-1952 Type of Manuscript: Special Section PAPER (Special Section on Signal Processing) Category: Keyword: H.264/AVC, motion estimation, early termination, multiple reference frame, variable block size,
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Low Power LDPC Code Decoder Architecture Based on Intermediate Message Compression Technique Kazunori SHIMIZU Nozomu TOGAWA Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 1054-1061 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: low-density parity-check code, message-passing algorithm, intermediate message compression technique, clock gated shift register for intermediate message,
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A 41 mW VGA@30 fps Quadtree Video Encoder for Video Surveillance Systems Qin LIU Seiichiro HIRATSUKA Kazunori SHIMIZU Shinsuke USHIKI Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2008/04/01 Vol. E91-C No. 4 pp. 449-456 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies in Digital LSIs and Memories) Category: Keyword: video surveillance system, motion estimation, ME-MC processor, quadtree, low power consumption,
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Reconfigurable Variable Block Size Motion Estimation Architecture for Search Range Reduction Algorithm Yibo FAN Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2008/04/01 Vol. E91-C No. 4 pp. 440-448 Type of Manuscript: Special Section PAPER (Special Section on Advanced Technologies in Digital LSIs and Memories) Category: Keyword: reconfigurable, VBSME, search range reduction, H.264,
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Parallel Improved HDTV720p Targeted Propagate Partial SAD Architecture for Variable Block Size Motion Estimation in H.264/AVC Yiqing HUANG Zhenyu LIU Yang SONG Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 987-997 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: H.264/AVC, variable block size motion estimation, hardware architecture,
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A High-Speed Design of Montgomery Multiplier Yibo FAN Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 971-977 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: Montgomery multiplier, high-speed, high-radix, scalable,
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Adaptive Search Range Algorithms for Variable Block Size Motion Estimation in H.264/AVC Zhenxing CHEN Yang SONG Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 1015-1022 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: H.264/AVC, VBSME, ASR, MVD,
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An Unequal Secure Encryption Scheme for H.264/AVC Video Compression Standard Yibo FAN Jidong WANG Takeshi IKENAGA Yukiyasu TSUNOO Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/01/01 Vol. E91-A No. 1 pp. 12-21 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Symmetric Cryptography Keyword: Unequal Secure Encryption, video encryption, selective encryption, H.264/AVC, AES, LEX,
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Efficient Fully-Parallel LDPC Decoder Design with Improved Simplified Min-Sum Algorithms Qi WANG Kazunori SHIMIZU Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2007/10/01 Vol. E90-C No. 10 pp. 1964-1971 Type of Manuscript: Special Section PAPER (Special Section on VLSI Technology toward Frontiers of New Market) Category: VLSI Architecture for Communication/Server Systems Keyword: area and power efficient fully-parallel LDPC decoder, improved simplified min-sum algorithms, power-saved strategy,
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Lossy Strict Multilevel Successive Elimination Algorithm for Fast Motion Estimation Yang SONG Zhenyu LIU Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/04/01 Vol. E90-A No. 4 pp. 764-770 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 19th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: motion estimation (ME), successive elimination algorithm (SEA), multilevel successive elimination algorithm (MSEA), strict multilevel successive elimination algorithm (SMSEA),
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Lossless VLSI Oriented Full Computation Reusing Algorithm for H.264/AVC Fractional Motion Estimation Ming SHAO Zhenyu LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/04/01 Vol. E90-A No. 4 pp. 756-763 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 19th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: H.264/AVC, FME, computation reusing, lossless, VLSI,
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Low-Power Partial Distortion Sorting Fast Motion Estimation Algorithms and VLSI Implementations Yang SONG Zhenyu LIU Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2007/01/01 Vol. E90-D No. 1 pp. 108-117 Type of Manuscript: Special Section PAPER (Special Section on Advanced Image Technology) Category: Keyword: motion estimation (ME), partial distortion sorting (PDS), systolic array architecture,
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Geometrical, Physical and Text/Symbol Analysis Based Approach of Traffic Sign Detection System Yangxing LIU Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2007/01/01 Vol. E90-D No. 1 pp. 208-216 Type of Manuscript: Special Section PAPER (Special Section on Advanced Image Technology) Category: Keyword: traffic sign detection, geometrical analysis, physical analysis, text detection,
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Content-Based Complexity Reduction Methods for MPEG-2 to H.264 Transcoding Shen LI Lingfeng LI Takeshi IKENAGA Shunichi ISHIWATA Masataka MATSUI Satoshi GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2007/01/01 Vol. E90-D No. 1 pp. 90-98 Type of Manuscript: Special Section PAPER (Special Section on Advanced Image Technology) Category: Keyword: MPEG-2/H.264 video transcoding, content-based, mode decision, intra prediction,
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A VLSI Architecture for Variable Block Size Motion Estimation in H.264/AVC with Low Cost Memory Organization Yang SONG Zhenyu LIU Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/12/01 Vol. E89-A No. 12 pp. 3594-3601 Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms) Category: VLSI Architecture Keyword: variable block size motion estimation (VBSME), memory organization, H.264/AVC,
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A Fine-Grain Scalable and Low Memory Cost Variable Block Size Motion Estimation Architecture for H.264/AVC Zhenyu LIU Yang SONG Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2006/12/01 Vol. E89-C No. 12 pp. 1928-1936 Type of Manuscript: PAPER Category: Integrated Electronics Keyword: H.264, AVC, variable block size motion estimation, VLSI architecture,
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Power-Efficient LDPC Decoder Architecture Based on Accelerated Message-Passing Schedule Kazunori SHIMIZU Tatsuyuki ISHIKAWA Nozomu TOGAWA Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/12/01 Vol. E89-A No. 12 pp. 3602-3612 Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms) Category: VLSI Architecture Keyword: low-density parity-check codes, parallel LDPC decoder architecture, message-passing algorithm, FIFO-based buffering,
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Partially-Parallel LDPC Decoder Achieving High-Efficiency Message-Passing Schedule Kazunori SHIMIZU Tatsuyuki ISHIKAWA Nozomu TOGAWA Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/04/01 Vol. E89-A No. 4 pp. 969-978 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: low-density parity-check codes, partially-parallel LDPC decoder, message-passing algorithm, FPGA,
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Scalable VLSI Architecture for Variable Block Size Integer Motion Estimation in H.264/AVC Yang SONG Zhenyu LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/04/01 Vol. E89-A No. 4 pp. 979-988 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: variable block size motion estimation (VBSME), H.264/AVC, very large scale integration (VLSI) architecture,
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A Hardware Implementation of a Content-Based Motion Estimation Algorithm for Real-Time MPEG-4 Video Coding Shen LI Takeshi IKENAGA Hideki TAKEDA Masataka MATSUI Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/04/01 Vol. E89-A No. 4 pp. 932-940 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: content-based, motion estimation, power-efficient, real-time, MPEG-4,
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A Contour-Based Robust Algorithm for Text Detection in Color Images Yangxing LIU Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2006/03/01 Vol. E89-D No. 3 pp. 1221-1230 Type of Manuscript: PAPER Category: Image Recognition, Computer Vision Keyword: text detection, texture analysis, connected component analysis, region contour, edge detection,
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A Selective Video Encryption Scheme for MPEG Compression Standard Gang LIU Takeshi IKENAGA Satoshi GOTO Takaaki BABA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/01/01 Vol. E89-A No. 1 pp. 194-202 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Application Keyword: commercial multimedia applications, selective encryption, MPEG codec, MPEG bitstream, data shuffle, processing overhead, bit overhead,
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A VLSI Array Processing Oriented Fast Fourier Transform Algorithm and Hardware Implementation Zhenyu LIU Yang SONG Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/12/01 Vol. E88-A No. 12 pp. 3523-3530 Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms) Category: VLSI Architecture Keyword: fast Fourier transform (FFT), array processing, singleton algorithm,
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Content-Based Motion Estimation with Extended Temporal-Spatial Analysis Shen LI Yong JIANG Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2005/07/01 Vol. E88-D No. 7 pp. 1561-1568 Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1) Category: Image Processing and Multimedia Systems Keyword: motion estimation, adaptive, content-based, spatial and temporal correlation,
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A Highly Parallel Architecture for Deblocking Filter in H.264/AVC Lingfeng LI Satoshi GOTO Takeshi IKENAGA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2005/07/01 Vol. E88-D No. 7 pp. 1623-1629 Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1) Category: Parallel and/or Distributed Processing Systems Keyword: deblocking filter, H.264/AVC, parallel memory, adaptive filter,
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Reconfigurable Adaptive FEC System Based on Reed-Solomon Code with Interleaving Kazunori SHIMIZU Nozomu TOGAWA Takeshi IKENAGA Satoshi GOTO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2005/07/01 Vol. E88-D No. 7 pp. 1526-1537 Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1) Category: Adaptive Signal Processing Keyword: dynamic reconfigurable system, adaptive FEC, Reed-Solomon code with interleaving,
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Performance Evaluation of Channel Switching Scheme for Packet Data Transmission in Radio Network Controller Yoshiaki OHTA Kenji KAWAHARA Takeshi IKENAGA Yuji OIE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2004/05/01 Vol. E87-B No. 5 pp. 1141-1150 Type of Manuscript: Special Section PAPER (Special Section on Mobile Multimedia Communications) Category: Mobile Radio Keyword: IMT-2000, W-CDMA, RNC, dedicated channel, common channel,
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Performance Analysis of Queue Length Distribution of Tandem Routers for QoS Measurement Nobuo RYOKI Kenji KAWAHARA Takeshi IKENAGA Yuji OIE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2003/02/01 Vol. E86-B No. 2 pp. 614-621 Type of Manuscript: Special Section PAPER (Special Issue on Internet Technology III) Category: Traffic Monitoring and Evaluation Keyword: QoS measurement, delay performance, correlation,
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QoS Routing Algorithm Based on Multiclasses Traffic Load Hedia KOCHKAR Takeshi IKENAGA Yuji OIE
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2002/08/01 Vol. E85-D No. 8 pp. 1219-1225 Type of Manuscript: Special Section PAPER (Special Issue on New Technologies in the Internet and their Applications) Category: Keyword: QoS, routing, multi-class, link cost,
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Quality of Assured Service through Multiple DiffServ Domains Kazumi KUMAZOE Yoshiaki HORI Takeshi IKENAGA Yuji OIE
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2002/08/01 Vol. E85-D No. 8 pp. 1226-1232 Type of Manuscript: Special Section PAPER (Special Issue on New Technologies in the Internet and their Applications) Category: Keyword: diffserv, end-to-end QoS, AF, assured forwarding service, multi-domain,
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Queue Management of RIO to Achieve High Throughput and Low Delay Yoshiaki HORI Takeshi IKENAGA Yuji OIE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2002/01/01 Vol. E85-B No. 1 pp. 63-69 Type of Manuscript: Special Section PAPER (Special Issue on Internet Technology II -- Traffic Control and Performance Evaluation in the Internet) Category: Keyword: differentiated services, AF-PHB, RIO, EWMA,
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Effectiveness and Issues of Rerouting Algorithms for QoS Networks Takeshi IKENAGA Kenji KAWAHARA Yuji OIE
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2001/06/01 Vol. E84-B No. 6 pp. 1553-1560 Type of Manuscript: Special Section PAPER (Special Issue on New Developments on QoS Technologies for Information Networks) Category: Keyword: routing, QoS guarantee, rerouting, performance evaluation,
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A Distributed BIST Technique and Its Test Design Platrorm for VLSIs Takeshi IKENAGA Takeshi OGURA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 1995/11/25 Vol. E78-C No. 11 pp. 1618-1623 Type of Manuscript: PAPER Category: Integrated Electronics Keyword: distributed built-in self-test, image processing LSI, pseudo random pattern generator, regular pattern, space compressor,
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