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Paper Abstract and Keywords
Presentation 2009-02-04 13:25
Likelihood Estimation for Transform Domain Distributed Video Coding
Ryoji Hashimoto, Hiroshi Tsutsui, Takao Onoye (Osaka Univ.), Tomohiro Ikai (Sharp Co.) ITS2008-39 IE2008-209
Abstract (in Japanese) (See Japanese page) 
(in English) Distributed Video Coding (DVC),
which is a new image compression paradigm, attracts
a lot of attention from video researchers.
While computational cost of DVC encoding is lower than that of MPEG-2,
low coding efficiency has been an issue for practical DVC applications.
In this paper, a likelihood estimation method for transform domain DVC is proposed,
which uses Cauchy distribution as a virtual channel model.
In the decoder, virtual channel is estimated by utilizing error
between forward and backward predicted images for each frequency component.
Likelihood is obtained from estimated virtual channel.
Simulation results show that the proposed method can estimate the error rate with 1.6% error on average.
Keyword (in Japanese) (See Japanese page) 
(in English) Distributed video coding / Likelihood estimation / Virtual channel / DCT / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 425, IE2008-209, pp. 31-36, Feb. 2009.
Paper # IE2008-209 
Date of Issue 2009-01-28 (ITS, IE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ITS2008-39 IE2008-209

Conference Information
Committee IE ITS ITE-HI ITE-ME ITE-AIT  
Conference Date 2009-02-04 - 2009-02-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Graduate School of Information Science and Technology Hokkaido Univ 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processings for ITS, Visual Media Engineering, etc. 
Paper Information
Registration To IE 
Conference Code 2009-02-IE-ITS-HI-ME-AIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Likelihood Estimation for Transform Domain Distributed Video Coding 
Sub Title (in English)  
Keyword(1) Distributed video coding  
Keyword(2) Likelihood estimation  
Keyword(3) Virtual channel  
Keyword(4) DCT  
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1st Author's Name Ryoji Hashimoto  
1st Author's Affiliation Osaka Univercity (Osaka Univ.)
2nd Author's Name Hiroshi Tsutsui  
2nd Author's Affiliation Osaka Univercity (Osaka Univ.)
3rd Author's Name Takao Onoye  
3rd Author's Affiliation Osaka Univercity (Osaka Univ.)
4th Author's Name Tomohiro Ikai  
4th Author's Affiliation Sharp Corporation (Sharp Co.)
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Speaker Author-1 
Date Time 2009-02-04 13:25:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # ITS2008-39, IE2008-209 
Volume (vol) vol.108 
Number (no) no.424(ITS), no.425(IE) 
Page pp.31-36 
#Pages
Date of Issue 2009-01-28 (ITS, IE) 


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