000163808 001__ 163808
000163808 005__ 20190812205505.0
000163808 037__ $$aCONF
000163808 245__ $$aRate distortion analysis in a disparity compensated scheme
000163808 269__ $$a2011
000163808 260__ $$c2011
000163808 336__ $$aConference Papers
000163808 520__ $$aThis paper addresses the problem of rate distortion analysis in the context of multi-view image coding, where images are predicted via disparity compensation based on depth map. We first present an an- alytical model for the variance of the residual error in a predicted frame when the prediction is done with the help of a compressed depth map. This residual variance model presents a convenient ex- pression that separates the different error origins (reference frame quantization, depth map coding, and motion activity). We then val- idate the novel analytical model by testing separately its different underlying hypotheses. Finally, we illustrate an application of our analytical model in a simple bit allocation problem where the ob- jective is to determine the optimal distribution of a global bit bud- get among reference frame, depth map and disparity-compensated frame. We observe that the optimal allocation given by the analyt- ical model corresponds in practice to the best rate distribution for high bitrate, which confirms the potential of the proposed model in the design of rate-controlled multi-view coding algorithms.
000163808 700__ $$aDavidoiu, Valentina
000163808 700__ $$0244422$$g206186$$aMaugey, Thomas
000163808 700__ $$aPesquet-Popescu, Béatrice
000163808 700__ $$aFrossard, Pascal$$0241061$$g101475
000163808 7112_ $$dMay, 22-27$$cPrague, Czech Republic$$aIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
000163808 8564_ $$zn/a$$yn/a$$uhttps://infoscience.epfl.ch/record/163808/files/davidoiu_last.pdf$$s523041
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000163808 917Z8 $$x206186
000163808 917Z8 $$x101475
000163808 937__ $$aEPFL-CONF-163808
000163808 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000163808 980__ $$aCONF