Fine granularity scalability video coding algorithm

摘要

Video streaming over the Internet has become a hotspot in the past few years. Based on the analysis of SNR scalability, FGS and PFGS, a novel fine granularity scalability video coding algorithm is proposed. The performance of the IPPP and IBBP cases are reviewed to demonstrate the impact of the drift effect to the layered video coding algorithm. Two new video coding approaches, namely drift free scalability and drift constrained scalability are presented to minimize the effect of drift. For the lack of prediction in the enhancement layer, the coding efficiency of the former is not very satisfying. Whereas the latter significantly improves the coding performance compared to the DFS coding scheme. While, both of them keep the inherit characteristics such as automatically adapting to the fluctuation of the network bandwidth and resilience to the packet loss.