An error resilience scheme on an end-to-end distortion analysis for video transmission over Internet

被引:4
作者
Xiong, H [1 ]
Yu, S [1 ]
Sun, J [1 ]
Zhou, J [1 ]
Chen, C [1 ]
机构
[1] Shanghai Jiao Tong Univ, Inst Image Commun & Informat Proc, Shanghai 200030, Peoples R China
基金
国家高技术研究发展计划(863计划);
关键词
error resilience; bit allocation; rate-distortion; variable bit-rate; end-to-end distortion;
D O I
10.1109/TCE.2004.1309453
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, an end-to-end rate-distortion (R-D) estimation recursive model is proposed, on the basis of the statistical analysis of the spatial and temporal prediction as well as a general error concealment method by the video decoder. It takes the source quantization error, channel error, and the subsequent error spatial-temporal propagation into account. Then a corresponding integrated error resilience scheme, which adopts a global optimal intra-macroblock (MB) refreshment ratio and visual acuity selection procedure, is introduced. Moreover, it employs a combined source-channel bit allocation strategy, which could estimate an instantaneous available source transmission rate under a given time-varying network condition. The network experiments show that this scheme is effective and applicable for a better and more consistent picture quality in the receiver end.
引用
收藏
页码:715 / 722
页数:8
相关论文
共 17 条