A Network-Aware Error-Resilient Video Coding Using Adaptive Intra And Reference Selection Refresh

Video quality suffers significant degradation when transmitted over error-prone channel. In this paper, a novel error-resilient coding scheme based on the H.264/AVC standard is proposed to tackle this challenge. Unlike traditional schemes using single and fixed tool, both intra refresh and reference selection (RS) refresh tools are dynamically adapted with consideration of more varying factors like transmission channel's packet loss state, bitrate, and expected distortion. To form a balance between coding efficiency and error-resilient capability, an approach to compute refresh locations, refresh mode, and reference picture selection according to scenarios will be presented. Experiments prove that it outperforms traditional refresh methods in a loss-probability-varying transmission channel environment.