Distributed video coding based on part intracoding and soft side information estimation
Multimedia Tools and Applications
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In Wyner-Ziv video coding, efficient compression is achieved by exploiting source statistics at the decoder only, which is radically different from conventional video coding. Prior works on this topic generally use channel coding to implement Slepian-Wolf codec. However, the correlation between some bitplanes of source and that of side information may be very weak. At that time, the coding performance of Slepian-Wolf codec should be lower than that of intracoding codec. If we can divide the video data into strongly correlative data encoded by Slepian-Wolf codec and weakly correlative data encoded by Intracoding codec, the coding performance of video codec would be improved. In this paper, we proposed a novel distributed video coding scheme with part Intracoding. Simulation results show that the proposed scheme can achieve better compression efficiency while keeping the simple encoding property.