Akira TAKAHASHI

Multimedia Quality Estimation Model for Video Streaming Services
Toshiko TOMINAGA  Kazuhisa YAMAGISHI  Takanori HAYASHI  Akira TAKAHASHI 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2011/01/01
Vol. J94-B  No. 1  pp. 49-60
Type of Manuscript: PAPER
Category: 
Keyword: 
QoE,  multimedia quality,  audio quality,  video quality,  HDTV, 
  Summary |  Full Text(in Japanese):PDF (1MB)
End-User QoE Estimation for Video Communication Services by Packet-Layer
Masataka MASUDA  Kazunari USHIKI  Toshiko TOMINAGA  Takanori HAYASHI  Akira TAKAHASHI  Konosuke KAWASHIMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2011/01/01
Vol. J94-B  No. 1  pp. 24-35
Type of Manuscript: PAPER
Category: 
Keyword: 
QoE,  video communication service,  end-terminal,  invalid packet,  invalid frame, 
  Summary |  Full Text(in Japanese):PDF (780.2KB)
Packet-Layer Video-Quality-Estimation Method by Using Frame-Type Estimation
Kazunari USHIKI  Masataka MASUDA  Takanori HAYASHI  Akira TAKAHASHI 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2011/01/01
Vol. J94-B  No. 1  pp. 36-48
Type of Manuscript: PAPER
Category: 
Keyword: 
IPTV,  QoE,  frame-type estimation,  invalid frame, 
  Summary |  Full Text(in Japanese):PDF (1.2MB)
Fish-Eye Camera Calibration Using Intensity Slant Patterns
Hideki KOMAGATA  Ikuo ISHII  Hideo MAKINO  Akira TAKAHASHI  Daisuke WAKATSUKI 
Publication:   D - Abstracts of IEICE TRANSACTIONS on Information and Systems (Japanese Edition)
Publication Date: 2010/05/01
Vol. J93-D  No. 5  pp. 621-631
Type of Manuscript: PAPER
Category: 
Keyword: 
fish-eye lens,  camera calibration,  intensity slant pattern,  edge extraction,  aberration, 
  Summary |  Full Text(in Japanese):PDF (647.4KB)
State-of-the-Art of QoE Assessment Methodologies for Multimedia Telecommunication Services
Takanori HAYASHI  Akira TAKAHASHI  Hideaki YOSHINO 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2008/06/01
Vol. J91-A  No. 6  pp. 600-612
Type of Manuscript: Special Section PAPER (Special Section on Image Media Quality)
Category: 
Keyword: 
multimedia,  QoE,  objective quality assessment,  videophone,  IPTV, 
  Summary |  Full Text(in Japanese):PDF (625.4KB)