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Paper Abstract and Keywords
Presentation 2008-12-19 08:55
Quality equalization in video coding and its effectiveness on the lowest MOS improvement
Shinichi Tanaka, Daigoro Miyakawa, Toshiyuki Yoshida (Fukui Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The authors have proposed a video coding technique which adaptively controls the video frame rate and the average bit amount per frame to maximize an estimate for the subjective video quality (MOS) under a constant-bit-rate contstraint. The technique, however, suffers from quality variation over scenes of a target video. This paper thus proposes a technique for video quality equalization over scenes by improving the lowest quality in the target video, which is realized by adaptively varying the bit rate for each scene under the assumption that the transmission bit rate is constant and that a large-size buffer is available. The technique is then applied to videos with several scenes to verify the lowest MOS improvement. The relation between the video quality improvement and the buffer size is also investigated.
Keyword (in Japanese) (See Japanese page) 
(in English) video coding / subjective quality / MOS / quality equalization / buffering / / /  
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Conference Information
Committee ME IEICE-BS  
Conference Date 2008-12-18 - 2008-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. 
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Paper Information
Registration To ME 
Conference Code 2008-12-ME-BS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quality equalization in video coding and its effectiveness on the lowest MOS improvement 
Sub Title (in English)  
Keyword(1) video coding  
Keyword(2) subjective quality  
Keyword(3) MOS  
Keyword(4) quality equalization  
Keyword(5) buffering  
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1st Author's Name Shinichi Tanaka  
1st Author's Affiliation Fukui University (Fukui Univ.)
2nd Author's Name Daigoro Miyakawa  
2nd Author's Affiliation Fukui University (Fukui Univ.)
3rd Author's Name Toshiyuki Yoshida  
3rd Author's Affiliation Fukui University (Fukui Univ.)
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Speaker Author-1 
Date Time 2008-12-19 08:55:00 
Presentation Time 25 minutes 
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