Jun OKAMOTO

Heterogeneous Delay Tomography for Wide-Area Mobile Networks
Hideaki KINSHO Rie TAGYO Daisuke IKEGAMI Takahiro MATSUDA Jun OKAMOTO Tetsuya TAKINE 
Publication:   
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1607-1616
Type of Manuscript:  PAPER
Category: Network
Keyword: 
delay tomography, graph Fourier transform (GFT), compressed sensing (CS), crowdsourcing, mobile network, 
 Summary | Full Text:PDF
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 quality, subjective assessment method, performance comparison, HD, QVGA, H.264, 
 Summary | Full Text:PDF
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: 
QoE, IPTV, monitoring, compression, packet loss, 
 Summary | Full Text:PDF
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 streaming, dynamic bit-rate control, QoS, quality estimation, subjective assessment, 
 Summary | Full Text:PDF