Takanori HAYASHI


Collaborative Quality Framework: QoE-Centric Service Operation in Collaboration with Users, Service Providers, and Network Operators
Akira TAKAHASHI Takanori HAYASHI 
Publication:   
Publication Date: 2017/09/01
Vol. E100-B  No. 9  pp. 1554-1563
Type of Manuscript:  INVITED PAPER (Special Issue the Past, Present, and Future of Communications Technologies in the IEICE)
Category: Network
Keyword: 
QoEoperationqualityQoS
 Summary | Full Text:PDF(1.7MB)

Performance Comparison of Subjective Assessment Methods for Stereoscopic 3D Video Quality
Taichi KAWANO Kazuhisa YAMAGISHI Takanori HAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 738-745
Type of Manuscript:  PAPER
Category: Network
Keyword: 
ACRDCRDSQCS3D2D
 Summary | Full Text:PDF(1MB)

Performance Comparisons of Subjective Quality Assessment Methods for Video
Toshiko TOMINAGA Masataka MASUDA Jun OKAMOTO Akira TAKAHASHI Takanori HAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/01/01
Vol. E97-B  No. 1  pp. 66-75
Type of Manuscript:  PAPER
Category: Network
Keyword: 
video qualitysubjective assessment methodperformance comparisonHDQVGAH.264
 Summary | Full Text:PDF(2.1MB)

Subjective Quality Metric for 3D Video Services
Kazuhisa YAMAGISHI Taichi KAWANO Takanori HAYASHI Jiro KATTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/02/01
Vol. E96-B  No. 2  pp. 410-418
Type of Manuscript:  Special Section PAPER (Special Section on Quality of Communication Services Improving Quality of Life)
Category: 
Keyword: 
QoEquality3D2Dsubjective quality metricobjective quality metric
 Summary | Full Text:PDF(1.2MB)

No Reference Video-Quality-Assessment Model for Monitoring Video Quality of IPTV Services
Kazuhisa YAMAGISHI Jun OKAMOTO Takanori HAYASHI Akira TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2  pp. 435-448
Type of Manuscript:  PAPER
Category: Network
Keyword: 
QoEIPTVmonitoringcompressionpacket loss
 Summary | Full Text:PDF(1.1MB)

Parametric Packet-Layer Model for Evaluation Audio Quality in Multimedia Streaming Services
Noritsugu EGI Takanori HAYASHI Akira TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6  pp. 1359-1366
Type of Manuscript:  Special Section PAPER (Special Section on Quality of Communication Networks and Services)
Category: 
Keyword: 
audioquality evaluationparametric packet-layer modelmultimedia streamingIPTVAAC
 Summary | Full Text:PDF(2.5MB)

Non-intrusive Packet-Layer Model for Monitoring Video Quality of IPTV Services
Kazuhisa YAMAGISHI Takanori HAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3297-3306
Type of Manuscript:  Special Section PAPER (Special Section on Image Media Quality)
Category: Evaluation
Keyword: 
QoEIPTVquality monitoringmonitoring point
 Summary | Full Text:PDF(390.1KB)

End-to-End Quality Management Method for VoIP Speech Using RTCP XR
Masataka MASUDA Tsuyoshi FURUKAWA Takanori HAYASHI Souhei MAJIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/11/01
Vol. E90-B  No. 11  pp. 3073-3082
Type of Manuscript:  Special Section PAPER (Special Section on Next Generation Network Management)
Category: 
Keyword: 
qualityVoIPmanagementRTCP XRQoSVoIP terminalNGN
 Summary | Full Text:PDF(669.9KB)

Non-intrusive Quality Monitoring Method of VoIP Speech Based on Network Performance Metrics
Masataka MASUDA Takanori HAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 304-312
Type of Manuscript:  Special Section PAPER (Special Section on Multimedia QoS Evaluation and Management Technologies)
Category: 
Keyword: 
qualityVoIPnon-intrusiveVQmonPESQE-modelR value
 Summary | Full Text:PDF(642.3KB)

Opinion Model Using Psychological Factors for Interactive Multimodal Services
Kazuhisa YAMAGISHI Takanori HAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 281-288
Type of Manuscript:  Special Section PAPER (Special Section on Multimedia QoS Evaluation and Management Technologies)
Category: 
Keyword: 
quality of servicesubjective assessmentsemantic differential techniquefactor analysis
 Summary | Full Text:PDF(250KB)

Subjective Quality Estimation Model for Video Streaming Services with Dynamic Bit-Rate Control
Takanori HAYASHI Ginga KAWAGUTI Jun OKAMOTO Akira TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 297-303
Type of Manuscript:  Special Section PAPER (Special Section on Multimedia QoS Evaluation and Management Technologies)
Category: 
Keyword: 
video streamingdynamic bit-rate controlQoSquality estimationsubjective assessment
 Summary | Full Text:PDF(312.5KB)

Evaluating Online Hot Instruction Sequence Profilers for Dynamically Reconfigurable Functional Units
Takanori HAYASHIDA Kazuaki MURAKAMI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/05/01
Vol. E86-D  No. 5  pp. 901-909
Type of Manuscript:  Special Section PAPER (Special Issue on Reconfigurable Computing)
Category: 
Keyword: 
online profilingdynamically reconfigurable computinghardware profiling
 Summary | Full Text:PDF(423.7KB)