DocumentCode :
770059
Title :
Joint source-channel decoding for H.264 coded video stream
Author :
Wang, Yue ; Yu, Songyu
Author_Institution :
Inst. of Image Commun. & Inf. Process. Res., Shanghai Jiao Tong Univ., China
Volume :
51
Issue :
4
fYear :
2005
Firstpage :
1273
Lastpage :
1276
Abstract :
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.
Keywords :
code standards; combined source-channel coding; error correction codes; maximum likelihood decoding; video codecs; video coding; video streaming; H.264 codec; H.264 coded video stream; error resilience methods; joint source-channel decoding; maximum a posteriori probability decoding method; motion vector; video coding standard; Channel coding; Code standards; Entropy coding; Error correction; Iterative decoding; Resilience; Source coding; Streaming media; Video coding; Video compression;
fLanguage :
English
Journal_Title :
Consumer Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-3063
Type :
jour
DOI :
10.1109/TCE.2005.1561855
Filename :
1561855
Link To Document :
بازگشت