Residual Distributed Video Coding Based on LQR-Hash

Distributed source coding (DSC) and Distributed video coding (DVC) have aroused high researchinterest due to their property of low-complexity encoding. This paper presents a residual DVC based on Lowquality reference (LQR) hash compressed by 0-motionH.264/AVC. SW-SPIHT is applied to the residual betweenWyner-Ziv frame and the decoded LQR hash, which exploits the temporal and spatial correlations so improvesthe coding effciency. At the decoder, the decoded LQR isused for more accurate motion estimation and better sideinformation. And a refinement reconstruction with sideinformation is proposed for better SPIHT decoding. Theexperimental results indicate the proposed scheme achievesbetter rate-distortion performance than current literaturesunder the constraint of similar encoding complexity.