Joint source-channel decoding for H.264 coded video stream

H.264 is the newest video coding standard and has achieved a significant improvement in coding efficiency. The entropy coding methods used in H.264 are CAVLC and CABAC. Although these two variable length code methods can achieve high compression, they are very sensitive to channel errors. This paper...

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Bibliographic Details
Published inIEEE transactions on consumer electronics Vol. 51; no. 4; pp. 1273 - 1276
Main Authors Yue Wang, Yue Wang, Songyu Yu, Songyu Yu
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channel coding
Channels
Code standards
Coding
Decoding
Entropy
Entropy coding
Error correction
Error detection
Errors
Iterative decoding
Resilience
Source coding
Streaming media
Streams
Video coding
Video compression
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Summary:H.264 is the newest video coding standard and has achieved a significant improvement in coding efficiency. The entropy coding methods used in H.264 are CAVLC and CABAC. Although these two variable length code methods can achieve high compression, they are very sensitive to channel errors. This paper presents a joint source-channel MAP (maximum a posteriori probability) decoding method to dealing with this sensitivity to channel errors and applied it to the decoding of the motion vector in H.264 coded video stream. Although H.264 codec has proposed several error resilience methods, we believe this method could provide additional error resilience to H.264 stream. Experiment indicates that our JSCD achieves significant improvement than a separate scheme.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2005.1561855