西安理工大学学报2012，Vol.28Issue(3)：335-339,5.
基于H.264/AVC的一种快速运动估计算法
A Fast Motion Estimation Algorithm for H.264/AVC
摘要
Abstract
H. 264/AVC has better performance of compression because of using motion estimation of vari-able block size, but it also enlarge computational complexity, which restricts the application range of H. 264/AVC. An ameliorative algorithm named MMVFAST (Multi-Motion Vector Field Adaptive Search Technology) is proposed through the improvement on MVFAST in this paper, the selection of block pat-tern can be sped up by use of the coherence of contiguous blocks and the applied probability of block modes, which can also confirm original motion-vectors, and then, different search pattern is used for block-matching according to the motion type of current block. Accordingly, this algorithm can simplify the computation of motion estimation greatly. Experimental results show that this algorithm can retrench time of motion estimation and improve speed of encoding observably in the pre-requisite of the fact that the image quality and output rate keep invariant.关键词
视频编码/H.264/AVC/运动估计/搜索模板Key words
video coding/H.264/AVC/motion estimation/search templates分类
信息技术与安全科学引用本文复制引用
张志刚,季翠丽..基于H.264/AVC的一种快速运动估计算法[J].西安理工大学学报,2012,28(3):335-339,5.基金项目
陕西省教育厅科学研究计划项目(2010JK731). （2010JK731）
