摘要： 研究了在存在丢包的Internet环境下FGS(精细粒度可分级)码流的鲁棒性传输。分析了应用于网络视频流的FGS视频编码方案在存在丢包环境下的鲁棒性,并与不分级编码方案比较;利用FGS的分级特点,设计合适的数据包保护策略来增强它的传输鲁棒性,实验结果表明使用不等数据包保护策略,FGS比不分级编码方案有更好的传输鲁棒性。

关键词: 精细粒度可分级编码, 不等数据包保护, 传输鲁棒性

Abstract: Robust video streaming using MPEG-4 fine granular scalability video coding method over Internet with packet-losses is investigated.A brief review of FGS video coding method is given with focus on its robustness in packet-loss environment and some comparison is carried out between FGS and MPEG-4 non-scalable video coding method. Based on the fine granular scalability (FGS), an unequal packet-loss protection strategy is proposed to enhance robustness of FGS in video streaming over packet-loss Internet. Simulation results demonstrate that when using unequal packet loss protection, FGS has a better performance than MPEG-4 non-scalable video coding method in video streaming over packet-loss Internet.

中图分类号: 

• TP393