基于分布式编码的视频编码技术的研究

Emerging application such as wireless surveillance systems, video sensor networks and mobile cameras among others, lead to urgent need of the low complexity video coding study. Distributed source coding is a paradigm for source compression which adapts to these requirements. The article gives the fundamental implementation and the state-of -art research results of distributed video coding, and uses the now common pixel domain Wyner-Ziv video coding scheme to achieve distributed video codec system, and it deeply analyses eystem's design principle and performance. The simulation result indicates that rate-distortion performance of the distributed video coding based on Turbo codes is better than the full I-frame encoding of the H.263 + standard,but there are still some gaps in hybrid frame coding of the H.263 + standard .