A DISTRIBUTED VIDEO CODER BASED ON THE H.264/AVC STANDARD

摘要

One of the latest innovations in the world of multimediatechnologies is the application of Distributed Source Coding(DSC) theory to the robust transmission of video sequences.However, these DSC-based video encoders are usually characterizedby a lower compression gain with respect to theirhybrid counterparts. In this work, we investigate achievingH.264-like high compression efficiency with a DSC-basedapproach without constraints on encoding complexity. Inthis way, highly non-stationary video data are modelledthrough coarse low-cost Motion Estimation, and this allowsus to obtain a good compression efficiency together with acertain robustness to channel errors and losses. Experimentalresults show that in presence of losses the presented algorithmpermits a better quality with respect to H.264/AVC.