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http://dx.doi.org/10.6109/jkiice.2012.16.2.259

A Fast Wyner-Ziv Video Decoding Method Using Adaptive LDPCA Frame-based Parity Bit Request Estimation  

Kim, Man-Jae (한밭대학교 멀티미디어공학과)
Kim, Jin-Soo (한밭대학교 멀티미디어공학과)
Kim, Jae-Gon (한국항공대학교 항공전자 및 정보통신공학부)
Seo, Kwang-Deok (연세대학교 컴퓨터정보통신공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.2, 2012 , pp. 259-265 More about this Journal
Abstract
Recently, many research works are focusing on DVC (Distributed Video Coding) system for low complexity encoder. Most DVC systems need feedback channel for parity bit control to achieve the good RD performances, however, this causes the system to have high decoding latency and is considered as one of the most critical problems for real implementation. In order to overcome this problem, this paper proposes an effective distributed video decoding method using adaptive LDPCA frame-based parity bit request estimation. The proposed method applies for the pixel-domain Wyner-Ziv system and exploits the statistical characteristics between adjacent LDPCA frames to estimate adaptively the parity bit request. Through computer simulations, it is shown that the proposed method achieves about 80% of latency reduction compared to the conventional no-estimation DVC system.
Keywords
DVC; fast decoding; parity bit request estimation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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