Error control and concealment for video communication: A review

被引:958
作者
Wang, Y
Zhu, QF
机构
[1] Polytech Univ, Dept Elect Engn, Brooklyn, NY 11201 USA
[2] PictureTel Corp, Andover, MA 01810 USA
关键词
error concealment; error control in video transport; video communications;
D O I
10.1109/5.664283
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 problem of error control and concealment in video communication is becoming increasingly important because of the growing interest ill video delivery over unreliable channels such as wireless networks and the Internet. This paper reviews the techniques that have been developed for error control and concealment in the past 10-15 years. These techniques are described in three categories according to the roles that the Encoder and decoder play in the underlying approaches. Forward error concealment includes methods that add redundancy at the source end to enhance error resilience of the coded bit streams. Error concealment by postprocessing refers to operations at the decoder to recover the damaged areas based on characteristics of image and video signals. Last, interactive error concealment covers techniques that are dependent on a dialogue between the source and destination. Both current research activities and practice in international standards are covered.
引用
收藏
页码:974 / 997
页数:24
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