%0 Journal Article
%T A temporal and spatial combined error concealment scheme for video communication<br>时空域相结合的视频差错掩盖方法
%A Luo Huayan
%A Zhu Xiuchang
%A <br>骆华燕
%A 朱秀昌
%J 中国图象图形学报
%D 2011
%I 
%X To overcome the shortcomings of temporal error concealment techniques in decoder that can not estimate motion vector of the loss block accurately, motion estimation in decoder and implicit motion model combined error concealment scheme is presented. First of all, we utilize the survived surrounding pixels of lost block for motion estimation, and determining the accuracy of estimates. Then we restore the missing pixels with implicit motion model making full use of the relevance of temporal and spatial domain according to the accuracy. The simulation results show that this method can improve the video image quality by 1dB than other methods.
%K video encoding
%K error concealment
%K motion estimation
%K virtual camera
%K implicit motion model<br>视频编码
%K 差错掩盖
%K 运动估计
%K 虚拟相机
%K 隐藏运动模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=8D53A0ACD81BA56FE75EEEBC6DF6EA2E&yid=9377ED8094509821&vid=7801E6FC5AE9020C&iid=CA4FD0336C81A37A&sid=DB817633AA4F79B9&eid=4AD960B5AD2D111A&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=14