Wynerziv residual coding for wireless multiview system For wireless multiview video system, whose abilities of storage and computation are all very weak, it is essential to have an encoder device with lowpower consumption and lowcomplexity. In this paper, a DCTdomain WynerZiv residual coding scheme with low encoding complexity is proposed for wireless multiview video coding (WZRCWMS). The scheme is designed to encode the residual frames of each view independently without any motion or disparity estimation at the encoder, so as to shift the large computational complexity to the decoder. At the decoder, the proposed scheme performs joint decoding with side information interpolated from current view and adjacent views. Experimental results show that the proposed WZRCWMS scheme outperforms the H.263 interframe coding about 1.9dB in ratedistortion performance, while the encoding complexity is only 117 of that of H.264 interframe coding.

A simple reversedcomplexity wynerziv video coding mode based on a spatial reduction framework A spatialresolution reduction based framework for incorporation of a WynerZiv frame coding mode in existing video codecs is presented, to enable a mode of operation with low encoding complexity. The core WynerZiv frame coder works on the Laplacian residual of a lowerresolution frame encoded by a regular codec at reduced resolution. The quantized transform coefficients of the residual frame are mapped to cosets to reduce the bitrate. A detailed ratedistortion analysis and procedure for obtaining the optimal parameters based on a realistic statistical model for the transform coefficients and the side information is also presented. The decoder iteratively conducts motionbased sideinformation generation and coset decoding, to gradually refine the estimate of the frame. Preliminary results are presented for application to the H.263 video codec.