本文对H．263中基于平移模型的重叠块运动估计补偿方法进行改进，提出了一种基于仿射模型的重叠块运动补偿方法，该方法对复杂运动图像质量有明显改善。

This paper proposes an overlapped block affine motion compensation method to improve the translational motion model used in H. 263, and it improved the quality of image with complicated motion.

youdao