Rate-distortion optimized unequal loss protection for FGS compressed video

被引：11
|
作者：
Cheng, LJ [1 ]
Zhang, WJ [1 ]
Chen, L [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Image Commun & Informat Proc, Shanghai 200030, Peoples R China
来源：
IEEE TRANSACTIONS ON BROADCASTING | 2004年 / 50卷 / 02期
关键词：
FGS; rate-distortion optimization; unequal loss protection;
D O I：
10.1109/TBC.2004.824212
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：
Video communication with Quality of Service (QoS) is an important and challenging task. The transmitted video stream must be able to afford the bandwidth variance and unavoidable packet loss in the Internet. In particular, fine-granular-scalability (FGS) video coding has been adopted by the MPEG-4 standard as the core video-compression method for streaming applications. From this inception, the FGS scalability structure was designed to be packet resilient especially under unequal loss protection (ULP). In this paper, we use ULP to protect FGS compressed video, and under the restriction of the network bandwidth, joint source-channel rate-distortion based optimization is performed in bit allocation to minimize the end-to-end distortion. Simulation results demonstrate effectiveness of our approach.
引用
收藏
页码：126 / 131
页数：6
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