CAJ | 학술논문

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。
제출료기우다삼고정적다방향변계필배시역오마엄개산법。수선획취오마괴상린굉괴적운동시량，병구출상린굉괴운동시량적균치，연후근거다방향필배준칙의차구출삼고정적운동시량，최후선취최가적운동시량완성오마엄개。장해방법여기우다삼고정적오마엄개산법화다방향변계필배적오마엄개산법진행비교，결과표명，해방법효과우우상술량충산법。
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 .