基于运动补偿时域滤波的视频编码算法研究

Study of Video Coding Based on Motion-compensated Temporal Filtering

深入研究了自适应图像组结构算法,提出了一种改进方案,新方案增加了图像分组的选择范围,根据视频序列的时域变化特性,分别选择[2,2,2,2,2,2,2,2],[4,4,4,4],[8,8]和[16]四种分组模式。实验结果表明:与改进的自适应图像组结构算法相比,新方案的编码性能有所提高,而计算复杂度不变。

An improved scheme is presented in this dissertation by investigating adaptive group of pictures structure deeply. The one of four kinds of group modes including [2,2,2,2,2,2,2,2], [4,4,4,4], [8,8] and [ 16] is decided according to the sequence＇s temporal characters. The experimental results show that in comparison to the improved adaptive group of pictures structure the proposed scheme can enhance coding efficiency,and meanwhile has the invariable computation complexity.