Decoder side information generation techniques in Wyner-Ziv video coding: a review

A simple encoder scheme for distributed residual video coding

“…This is because higher compression efficiency and lower bitrates could be achieved with an increased dependence of SI. Since the decoder does not have any information about current WZ frame, the hash can be sent at the encoder as auxiliary information to assist SI generation [1,2,8,14,15,20,26,30]. The common hash function is CRCs [26].…”

“…Other information, such as the b most significant bit planes that are entropy coded [14,30] and a down-sampled WZ frame that is intra coded [15], can be used as hash information. The detailed analyses of hash-based motion estimation were presented in [20]. Most experimental results show that hash-based methods benefit video with medium to high bitrates than that with low bitrates.…”