Paper Abstract and Keywords |
Presentation |
2008-09-12 09:30
Improving Rate-Adaptive LDPC Coding Performance Based on Syndrome Rate Estimation for Distributed Video Coding Yoshihide Tonomura, Takayuki Nakachi, Tatsuya Fujii (NTT), Hitoshi Kiya (Tokyo Metropolitan Univ.) IT2008-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Distributed Video Coding (DVC), based on the multiuser information theorems proposed by Slepian-Wolf and Wyner-Ziv, is attracting attention as a new paradigm for video compression. Unfortunately, DVC decoders that use channel coding based on message-passing algorithms are extremely complex. To reduce the decode time, we have already proposed a parallelized DVC framework that treats each bitplane independently. In this paper, we improve the coding performance of Rate-Adaptive LDPC(RA-LDPC), which is used in the parallelized DVC framework. The previous work used one sparse matrix, which included RA-LDPC coder. This latest work selects a fitting sparse matrix for each bitplane according to the syndrome rate estimation results at the encoder side. Simulations show that our proposal achieves a bit rate reduction of about 10[%]. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Distributed video coding / LDPC codes / Rate-Adaptive LDPC codes / Syndrome rate estimation / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 202, IT2008-31, pp. 67-72, Sept. 2008. |
Paper # |
IT2008-31 |
Date of Issue |
2008-09-04 (IT) |
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) |
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IT2008-31 |
Conference Information |
Committee |
IT |
Conference Date |
2008-09-11 - 2008-09-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Culture Resort Festone (Okinawa) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
IT |
Conference Code |
2008-09-IT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Improving Rate-Adaptive LDPC Coding Performance Based on Syndrome Rate Estimation for Distributed Video Coding |
Sub Title (in English) |
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Keyword(1) |
Distributed video coding |
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LDPC codes |
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Rate-Adaptive LDPC codes |
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Syndrome rate estimation |
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1st Author's Name |
Yoshihide Tonomura |
1st Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
2nd Author's Name |
Takayuki Nakachi |
2nd Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
3rd Author's Name |
Tatsuya Fujii |
3rd Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
4th Author's Name |
Hitoshi Kiya |
4th Author's Affiliation |
Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-09-12 09:30:00 |
Presentation Time |
25 minutes |
Registration for |
IT |
Paper # |
IT2008-31 |
Volume (vol) |
vol.108 |
Number (no) |
no.202 |
Page |
pp.67-72 |
#Pages |
6 |
Date of Issue |
2008-09-04 (IT) |
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