Yoshinori SAKAI


Data-Driven Decision-Making in Cyber-Physical Integrated Society
Noboru SONEHARA Takahisa SUZUKI Akihisa KODATE Toshihiko WAKAHARA Yoshinori SAKAI Yu ICHIFUJI Hideo FUJII Hideki YOSHII 
Publication:   
Publication Date: 2019/09/01
Vol. E102-D  No. 9  pp. 1607-1616
Type of Manuscript:  INVITED PAPER (Special Section on Log Data Usage Technology and Office Information Systems)
Category: 
Keyword: 
Cyber-Physical Integrated SocietyData-Driven Decision MakingInternet of Personsweb of resourceslifelogdestination data management
 Summary | Full Text:PDF(2.4MB)

Colorization Based Image Coding by Using Local Correlation between Luminance and Chrominance
Yoshitaka INOUE Takamichi MIYATA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/01/01
Vol. E95-D  No. 1  pp. 247-255
Type of Manuscript:  PAPER
Category: Image Processing and Video Processing
Keyword: 
image codingcolorizationtotal variationcorrelation between luminance and chrominance
 Summary | Full Text:PDF(878.4KB)

Local Optimal File Delivery Scheduling in a Hop by Hop File Delivery System on a One Link Model
Hiromi TSURUMI Takamichi MIYATA Katsunori YAMAOKA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/01/01
Vol. E92-B  No. 1  pp. 34-45
Type of Manuscript:  Special Section PAPER (Special Section on Networking Technologies for Dependable Networks)
Category: 
Keyword: 
file deliveryschedulingoptimizationhop by hop
 Summary | Full Text:PDF(578.7KB)

Dynamic Activating and Deactivating Loss Recovery Router for Live Streaming Multicast
Yuthapong SOMCHIT Aki KOBAYASHI Katsunori YAMAOKA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/05/01
Vol. E89-B  No. 5  pp. 1534-1544
Type of Manuscript:  PAPER
Category: Network
Keyword: 
live streamingmulticastQMLS protocolallowable delayallowable loss probabilityrouter activation and deactivation
 Summary | Full Text:PDF(794.4KB)

QoS Multicast Protocol for Live Streaming
Yuthapong SOMCHIT Aki KOBAYASHI Katsunori YAMAOKA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1128-1138
Type of Manuscript:  PAPER
Category: Network
Keyword: 
multicastlive streaminglossQoSallowable delayretransmission
 Summary | Full Text:PDF(543.9KB)

Distributed QoS Control Based on Fairness of Quality for Video Streaming
Kentaro OGAWA Aki KOBAYASHI Katsunori YAMAOKA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/12/01
Vol. E87-B  No. 12  pp. 3766-3773
Type of Manuscript:  PAPER
Category: Multimedia Systems for Communications" Multimedia Systems for Communications
Keyword: 
video streamingQoSfairnessautonomous distributed controlMPEG
 Summary | Full Text:PDF(651.3KB)

Media Synchronization with Adaptive QoS Control Based on a Delay Compensation Protocol and a Smoothing Technique
Sirirat TREETASANATAVORN Toshiyuki YOSHIDA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/10/25
Vol. E82-B  No. 10  pp. 1595-1608
Type of Manuscript:  PAPER
Category: Signaling System and Communication Protocol
Keyword: 
multimediamedia synchronizationQoS
 Summary | Full Text:PDF(1.2MB)

Systematic Derivation of Input-Output Relation for 2-D Periodically Time-Variant Digital Filters with an Arbitrary Periodicity
Toshiyuki YOSHIDA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1699-1702
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
digital filtersmultidimensional filterstime-variant filtersperiodicity
 Summary | Full Text:PDF(266.6KB)

Bitstream Scaling and Encoding Methods for MPEG Video Dedicated to Media Synchronization in a Network
Akio ICHIKAWA Takashi TSUSHIMA Toshiyuki YOSHIDA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/08/25
Vol. E81-B  No. 8  pp. 1637-1646
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia Communications in Heterogeneous Network Environments)
Category: Media Synchronization and Video Coding
Keyword: 
MPEG videodistributed multimedia systemmedia synchronizationbitstream scaling
 Summary | Full Text:PDF(1.2MB)

Intramedia Synchronization Control Based on Delay Estimation by Kalman Filtering
Sirirat TREETASANATAVORN Toshiyuki YOSHIDA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/05/25
Vol. E81-B  No. 5  pp. 1051-1061
Type of Manuscript:  PAPER
Category: Communication Networks and Services
Keyword: 
multimediamedia synchronizationintramedia synchronizationdelay estimationKalman filtering
 Summary | Full Text:PDF(978.9KB)

Design of Two-Dimensional Periodically Time-Variant Digital Filters
Toshiyuki YOSHIDA Shin'ichi NISHIZONO Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/08/25
Vol. E80-A  No. 8  pp. 1453-1459
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
digital filtersmultidimensional filterstime-variant filters
 Summary | Full Text:PDF(524.4KB)

Searching Multimedia Information in Distributed Environment
Yoshinori SAKAI Ryoji KATAOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/08/25
Vol. E79-B  No. 8  pp. 989-998
Type of Manuscript:  INVITED PAPER (Special Issue on Multimedia on Demand)
Category: 
Keyword: 
information searchimage retrievaldistributed databasenetwork
 Summary | Full Text:PDF(1.1MB)

FOREWORD
Yasuhiko YASUDA Ichiro IIDA Naohisa KOMATSU Makoto NAKAMURA Jun NISHIKIDO Hiroyuki OKAZAKI Yoshinori SAKAI Yoshiaki TANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/08/25
Vol. E79-B  No. 8  pp. 987-988
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(383.2KB)

Spectrum-Adaptive Band-Limiting Technique for 3-D Non-orthogonal Sampling
Kazuhiro OKURA Toshiyuki YOSHIDA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/08/25
Vol. E79-A  No. 8  pp. 1202-1209
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
multidimensional signal processingsampling conversionband-limiting filtervariable filter
 Summary | Full Text:PDF(907.5KB)

Network Design and Routing Algorithm in Convergence-Cast Communication
Mohammad R, AHMADI Katsunori TAMAOKA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/02/25
Vol. E79-B  No. 2  pp. 116-121
Type of Manuscript:  PAPER
Category: Communication Networks and Services
Keyword: 
communication networks and services
 Summary | Full Text:PDF(531.4KB)

FOREWORD
Masao NAKAGAWA Yukitsuna FURUYA Toshikazu KODAMA Ryuji KOHNO Yoichi SAITO Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1087-1088
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(238.4KB)

Resolution Conversion Method with High Image Quality Preservation
Saprangsit MRUETUSATORN Hirotsugu KINOSHITA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/06/25
Vol. E77-D  No. 6  pp. 686-693
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
image resolutiondisplay impulse responsehuman visual characteristics
 Summary | Full Text:PDF(581.9KB)

Conversion of Image Resolutions for High Quality Visual Communication
Saprangsit MRUETUSATORN Hirotsugu KINOSHITA Yoshinori SAKAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/02/25
Vol. E76-D  No. 2  pp. 251-258
Type of Manuscript:  PAPER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
resolutionhigh quality imagemultilevel image
 Summary | Full Text:PDF(692.5KB)