小数像素运动估计快速算法

Fast algorithm of fractional pixel accuracy motion estimation

高精度的匹配和补偿可以减少预测误差,提高压缩视频图像的质量。提出了一种小数像素精度视频运动估计的快速算法,根据半像素精度运动估计的中间结果,直接推算出最高精度的运动估计。根据该算法可以快速得到任意小数像素精度的运动估计。

The prediction error can be decreased, incorporating with high accuracy estimation and compensation, and the quality of compressed video can be improved. A fast algorithm of fractional pixel accuracy video motion estimation was proposed in this paper. After half-pel accuracy motion estimation, high accuracy motion estimation can be calculated directly with the intermediate results. According to this fast algorithm, arbitrary fractional pixel accuracy motion estimation can be obtained.