一种运动估计快速算法的研究与实现

Research of A New Fast Motion Estimation Algorithm

为了减少H.264在运动估计运算时的运算量,文中提出了一种新算法:设立阈值根据块类型进行不同匹配模板的整像素搜索,然后根据整像素运动方向判断的半像素搜索算法,有效地降低了编码器运算复杂度,明显地提高了编码速度,改善了运动图像编码的实时性。

To decrease the complexity of motion estimation in H.264,we propose a new scheme:it uses a threshold to differentiate the motion pattern,then in subpel motion estimation it based on the integer pixel's direction.The proposed algorithm can reduce the complexity considerably while maintaining the video quality.