Paper Info
Title
Using Variable-Length Error-Correcting Codes In Mpeg-4 Video
Abstract
Reversible Variable Length (RVL) codes are used in MPEG-4 video coding to improve its error resilience. Algorithms used to design Variable-Length Error-Correcting (VLEC) codes are modified so as to construct efficient RVL codes with a smaller average length than those found in the literature. It is also shown that RVL codes are a special (weak) class of VLEC codes. Consequently more powerful VLEC codes can be used in the MPEG-4 codec and it is shown that performance gains of up to 20dB in Peak Signal to Noise Ratio (PSNR) can be obtained using a soft-decision sequential decoder with relatively simple VLEC codes. This increase in performance is obtained at the expense of an order of magnitude increase in decoding complexity.
Year
DOI
Venue
2005
10.1109/ISIT.2005.1523774
2005 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT), VOLS 1 AND 2
Keywords
Field
DocType
error correction,error correction code,peak signal to noise ratio,sequential decoding
Discrete mathematics,BCJR algorithm,Concatenated error correction code,Sequential decoding,Luby transform code,Computer science,Block code,Serial concatenated convolutional codes,Turbo code,Algorithm,Theoretical computer science,Linear code
Conference
Citations 
PageRank 
References 
5
0.49
0
Authors
2
Name
Order
Citations
PageRank
Victor Buttigieg1154.32
rennie deguara250.49