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Multi-Hypothesis Error Concealment Algorithm for H.26L Video  

박영오 (삼성전자)
김창수 (홍콩중문대학)
이상욱 (서울대학교)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.11C, 2003 , pp. 1130-1139 More about this Journal
Abstract
In this work, we propose a multi-hypothesis error concealment algorithm, which replaces a lost block with a weighted superposition of more than two reference blocks in previous frames. Three methods are developed to find the set of reference blocks and determine the weighting coefficients. These methods are implemented based on H.26L standard, and their performances are evaluated. It is shown that the proposed multi-hypothesis algorithm provides up to 1.5㏈ better PSNR performance than the conventional single-hypothesis concealment algorithm.
Keywords
H.26L; multi-hypothesis error concealment; H.26L;
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