Image recombination based side information reconstruction in Wyner-Ziv video coding

Wyner-Ziv video coding (WZC) exhibits many properties like low-complexity encoding or embedded error resilience. The quality of side information takes an important role in the performance of WZC. In order to improve the performance of WZC, a new side information interpolation algorithm is proposed in this paper. In our approach, adjacent frames are recombined before encoding. At the decoder, side information is interpolated by the intra interpolation technique. Experimental results show that the proposed algorithm achieves 0.7dB gain compared with the conventional Wyner-Ziv coding schemes without sacrificing the encoder complexity.