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Coding scheme with skip mode based on motion filed detection for DVC

Motion estimation has been shifted from encoder to the decoder in distributed video coding (DVC). In this paper, a simplified skip mode is introduced in the WZ (Wyner-Ziv) frame coding process. In the proposed scheme, a skip mode decision process is performed to determine whether to apply skip mode to the blocks with low motion first. With the skip-mode, the block is reconstructed from the side information in the decoder without any encoding bits. In addition, the non-skip mode blocks are divided into two parts by motion activity. The encoding bitplane is extracted within each set and encoded independently. Simulations show the proposed scheme can achieve up to 54.29% bitrate savings without visible PSNR sacrifice