one-bit transform-based side information generation for wyner-ziv coding
The new video coding paradigm based on the Slepian-Wolf and Wyner-Ziv theorems, namely, Distributed Video Coding (DVC) is being actively studied as a light-weighted video encoding technique. The Wyner-Ziv coding scheme being the most representative DVC algorithm reconstructs an image by eliminating noises on side information using channel code. The quality of side information is an essential factor to achieve high compression performance of the Wyner-Ziv coding, however, conventional side information generation methods have problems when there are complex motions between frames. In this paper, a new side information generation method based on one-bit transform is proposed. The proposed encoder transmits edge information of original image in order to help motion estimation at the decoder. Thus, it is possible to perform more accurate decoder-side motion estimation.
one-bit transform side information generation wyner-ziv coding distributed video coding