000087284 001__ 87284
000087284 005__ 20190316233751.0
000087284 0247_ $$2doi$$a10.1155/ASP/2006/46747
000087284 02470 $$2DAR$$a9633
000087284 02470 $$2ISI$$a000242077700001
000087284 037__ $$aARTICLE
000087284 245__ $$aDistributed coding of Highly correlated image sequences with motion-compensated temporal wavelets
000087284 269__ $$a2006
000087284 260__ $$c2006
000087284 336__ $$aJournal Articles
000087284 500__ $$aArticle ID 46747
000087284 520__ $$aThis paper discusses robust coding of visual content for a distributed multimedia system. The system encodes independently two correlated video signals and reconstructs them jointly at a central decoder. The video signals are captured from a dynamic scene where each signal is robustly coded by a motion-compensated Haar wavelet. The efficiency of the decoder is improved by a disparity analysis of the first image pair of the sequences followed by disparity compensation of the remaining images of one sequence. We investigate how this scene analysis at the decoder can improve the coding efficiency. At the decoder, one video signal is used as side information to decode efficiently the second video signal. Additional bit-rate savings can be obtained with disparity compensation at the decoder. Further, we address the theoretical problem of distributed coding of video signals in the presence of correlated video side information. We utilize a motion-compensated spatiotemporal transform to decorrelate each video signal. For certain assumptions, the optimal motion-compensated spatiotemporal transform for video coding with video side information at high rates is derived. It is shown that the motion-compensated Haar wavelet belongs to this class of transforms. Given the correlation of the video side information, the theoretical bit-rate reduction for the distributed coding scheme is investigated. Interestingly, the efficiency of multi-view side information is dependent on the level of temporal decorrelation: For a given correlation-SNR of the side information, bit-rate savings due to side information are decreasing with improved temporal decorrelation.
000087284 6531_ $$adistributed coding
000087284 6531_ $$aLTS2
000087284 6531_ $$alts2
000087284 6531_ $$avideo coding
000087284 6531_ $$alts2
000087284 700__ $$aFlierl, M.
000087284 700__ $$g120906$$aVandergheynst, P.$$0240428
000087284 773__ $$j2006$$tEURASIP - Journal on Applied Signal Processing, Special Issue on Video Analysis and Coding for Robust Transmission
000087284 8564_ $$uhttps://infoscience.epfl.ch/record/87284/files/Flierl2005_1332.pdf$$zn/a$$s200488
000087284 909C0 $$xU10380$$0252392$$pLTS2
000087284 909CO $$qGLOBAL_SET$$pSTI$$ooai:infoscience.tind.io:87284$$particle
000087284 937__ $$aEPFL-ARTICLE-87284
000087284 970__ $$aFlierl2005_1332/LTS
000087284 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000087284 980__ $$aARTICLE