DocumentCode :
815673
Title :
Error Concealment for Scalable Motion-Compensated Subband/Wavelet Video Coders
Author :
Bajic, Ivan V. ; Woods, John W.
Author_Institution :
Multimedia Commun. Lab., Simon Fraser Univ., Burnaby, BC
Volume :
17
Issue :
4
fYear :
2007
fDate :
4/1/2007 12:00:00 AM
Firstpage :
508
Lastpage :
514
Abstract :
In this paper, we present two error-concealment algorithms developed for scalable motion-compensated subband/wavelet video coders. These algorithms exploit the properties of motion-compensated temporal filtering to recover lost video data by motion compensation from correctly received previous and future video frames. Our experiments indicate that backward motion-compensated prediction outperforms replacement from neighboring correctly received frames by up to 3 dB in terms of PSNR. In addition, a bidirectional algorithm tops the unidirectional one by up to 1 dB. Also, visual improvements are often higher that PSNR improvements would suggest
Keywords :
filtering theory; motion compensation; transform coding; video coding; wavelet transforms; bidirectional algorithm; error concealment; motion-compensated temporal filtering; scalable motion-compensated subband; video data; video frames; wavelet video coders; Decoding; Degradation; Discrete cosine transforms; Electronic mail; Filtering algorithms; Motion compensation; Multimedia communication; PSNR; Streaming media; Video coding; Error concealment; MC-EZBC; motion compensation; subband/wavelet video coding;
fLanguage :
English
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8215
Type :
jour
DOI :
10.1109/TCSVT.2006.888838
Filename :
4162520
Link To Document :
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