Side information generation in Distributed Video Coding using selective DC coefficients

Abstract

The quality of Side Information determines the performance of the DVC coder. The technique of generating Side Information using only available decoded key frames at decoder offers acceptable result for video sequences with low and medium level of motion. However, for complex and high motion sequences, sending some additional “hint” information from encoder for selective blocks is necessary. This paper proposes a new framework for Distributed Video Coding using selective DC information at the encoder to assist the side information generation at the decoder. This scheme offers higher rate distortion performance for sequences with complex and high motion without adding significant complexity to the encoder.