作　　者： ; ; ; ;

机构地区： 中国科学院计算技术研究所

出　　处： 《小型微型计算机系统》 2007年第10期1842-1845,共4页

摘　　要： 当立体视频流通过网络传输时,由于网络拥塞等造成的数据包丢失常常会引起整个视频帧丢失.鉴于此,本文基于H.264/AVC视频编码标准提出了两种立体视频整帧错误掩盖方案,它们分别利用立体视频序列的不同特点来进行恢复.结果显示,利用这两种算法恢复的图像均能获得很好的主客观质量. In compressed stereoscopic video transmission over the Internet, it is sensitive to packet loss. What＇s worse, packet loss may cause a whole-right-frame＇s loss. So it is necessary and important for the decoder to exploit error concealment algorithm to obtain the quality-accepted image. In this paper, two error concealment algorithms are proposed based on the latest H. 264/AVC. They are designed to deal with the whole-right-frame loss in stereoscopic video stream transmission. Firstly, analyse the characteristics of stereo video and then utilize them to do concealing. Experiment results show that the proposed methods achieve good objective and subjective quality.

关 键 词： 立体视频序列 错误掩盖 视差矢量 运动矢量

领　　域： [自动化与计算机技术] [自动化与计算机技术]