A degressive error protection algorithm for MPEG-4 FGS video streaming

被引：0
|
作者：
Yang, XK [1 ]
Zhu, C [1 ]
Li, ZG [1 ]
Feng, GN [1 ]
Wu, S [1 ]
Ling, N [1 ]
机构：
[1] Labs Informat Technol, Signal Proc Program, Singapore, Singapore
来源：
2002 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL III, PROCEEDINGS | 2002年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper presents a novel degressive error protection (DEP) algorithm adaptive to time varying packet loss rate for robustly transporting MPEG-4 fine granularity scalability (FGS) bit-stream over the packet erasure networks. By exploiting the embedded nature of FGS enhancement-layer bit-stream, a rate-distortion (R-D) optimization framework is developed to optimally partition the FGS enhancement-layer bit-stream into blocks and then to apply DEP to blocks by forward error correction (FEC). Experiment results show that this algorithm achieves graceful degradation of video quality in a wide range of packet loss rates.
引用
收藏
页码：737 / 740
页数：4
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