极低码率视频编码中运动估值技术的研究

A Research on Motion Estimation Algorithm of Video Coding Technique at Very Low Bit Rate

本文针对Ｈ．２６３编码系统块匹配运动估值技术中出现的一些影响图像质量和系统编码效率的问题，提出了一种新的宏块分区运动估值算法。计算机模拟实验表明，采用新的算法能较好地提高系统编码效率和图像质量。

In the coding system of H.263,some problems which influence quality of images and efficiency of coding system,can be caused by using normal block matching motion estimation technique.In order to solve them,a new motion estimation algorithm based on macroblock partition is proposed in this paper.Simulation results show that the proposed algorithms can improve the coding efficiency of system and quality of images.