视频通信中的错误隐藏技术

Error Concealment Techniques in Video Communication

在不可靠的信道上进行视频通信如何才能得到高质量的视觉效果,即如何将传输中的错误隐藏起来,已经引起了计算机应用研究人员的兴趣。概述了在视频传输中错误隐藏的必要性,并从两个方面分析了当前较流行的错误隐藏技术———基于时间的错误隐藏和基于空间的错误隐藏方法;最后分析了视频通信中错误隐藏的发展方向。

The problem of concealment in video communication is becoming increasingly important because of the growing interest in video delivery over unreliable channels such as wireless networks and the Internet. This paper reviews the necessity of error concealment, current error concealment techniques. These techniques are described in two categories according to temporal concealment methods and spatial errorconcealment methods.Lastly, the paper tries to analyze the direction of the development of error concealment.