基于多参考帧的多方向边界匹配时域误码掩盖  

An error concealment algorithm basedon multi-frame and multi-directional boundary side matching

作　　者：万水龙 罗国成[1] 余彪[3] 

机构地区：[1]中国人民解放军91960部队 [2]南京航空航天大学 [3]中国人民解放军92493部队

出　　处：《微型机与应用》2014年第2期35-37,共3页Microcomputer & Its Applications

摘　　要：提出了基于多参考帧的多方向边界匹配时域误码掩盖算法。首先获取误码块相邻宏块的运动矢量,并求出相邻宏块运动矢量的均值,然后根据多方向匹配准则依次求出参考帧的运动矢量,最后选取最佳的运动矢量完成误码掩盖。将该方法与基于多参考帧的误码掩盖算法和多方向边界匹配的误码掩盖算法进行比较,结果表明,该方法效果优于上述两种算法。This paper proposes an error concealment algorithm based on multi-frame and multi-directional boundary side maching . Firstly , it gets error block adjacent the macroblock motion vector and gets the average of neighboring macroblock motion vector; Then , according to many matching criteria , it gets reference frame of the direction vector in turn . Finally , it selects the best motion vector complete error . The experimental results are compared with those of multiple reference frame error masking algo-rithm and direction error masking algorithm boundary matching . The result shows that the effects of the proposed algorithm are bet-ter than those .

关 键 词：误码掩盖 多参考帧 多方向边界匹配 运动矢量 

分 类 号：TN919.8[电子电信—通信与信息系统] TN919.81[电子电信—信息与通信工程]