| 一种基于视频序列特性的快速运动估计算法 |
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| 引用本文： | 杨兵,王勇.一种基于视频序列特性的快速运动估计算法[J].桂林电子科技大学学报,2006,26(1):50-53. |
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| 作者姓名： | 杨兵 王勇 |
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| 作者单位： | 桂林电子工业学院,计算机系,广西,桂林,541004 |
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| 摘 要： | 针对视频压缩中的关键技术运动估计算法,提出了一种新的快速运动估计算法.该算法首先利用视频序列宏块间的相关性预测搜索起点,同时根据运动矢量中心偏置特性和SAD分布的方向性设计搜索模板,避免和减少不必要的搜索,提高了运动估计的速度和精度,在保证视频图像质量的情况下,有效的降低了计算复杂度.
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| 关 键 词： | 视频压缩 运动估计 块匹配 运动矢量 |
| 文章编号： | 1001-7437(2006)01-0050-04 |
| 修稿时间： | 2005年12月20 |
A New Fast Motion Estimation Algorithm Based on Video Sequences Characteristics |
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| YANG Bing,WANG Yong.A New Fast Motion Estimation Algorithm Based on Video Sequences Characteristics[J].Journal of Guilin Institute of Electronic Technology,2006,26(1):50-53. |
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| Authors: | YANG Bing WANG Yong |
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| Abstract: | Motion estimation algorithm,as one of the significant issues to video compression encoding,is studied in this paper.A new fast motion estimation algorithm is advanced.The correlation of video macro block is used to predict start point of searching.The searching mode is designed according to the center-biased characteristic of motion vector of video sequences and the directionality of the SAD distribution.The algorithm avoids and reduces unnecessary searching,making motion estimation faster and more accurate.This algorithm keeps the image quality as well as reduces the computations complexity. |
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| Keywords: | video compression motion estimation block matching motion vector |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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