Error concealment based on matching-principles in MPEG-2 image

被引：0
|
作者：
Hao, LG [1 ]
Wang, ZH [1 ]
Guo, H [1 ]
Su, HS [1 ]
机构：
[1] Tianjin Univ, Coll Elect & Informat Engn, Tianjin 300072, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2004年 / 13卷 / 01期
关键词：
MPEG-2 (moving picture experts group-2) image; spatial edge-matching; temporal blockmatching; error concealment;
D O I：
暂无
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：
The MPEG-2 compression algorithm is very sensitive to transmission errors due to the use of variable-length coding. Any errors can lead to noticeable degradation of image quality seriously, so that in part or entire slice information is lost until the next resynchronization point is reached. Error concealment (EC) methods offer one way of dealing with this problem. In this paper, two new algorithms, namely spatial EC based on edge-matching and temporal EC based on block-matching, are presented to reconstruct the corrupted regions. According to the simulation results of experiments, the proposed methods can recover the high-quality MPEG-2 images.
引用
收藏
页码：58 / 62
页数：5
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