| 一种高效率的快速块匹配运动估计算法 |
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| 引用本文： | 何书前,张学平,邹昉楠,桂占吉. 一种高效率的快速块匹配运动估计算法[J]. 计算机工程与应用, 2006, 42(32): 27-30 |
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| 作者姓名： | 何书前 张学平 邹昉楠 桂占吉 |
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| 作者单位： | 海南师范大学,计算机科学与教育技术系,海口,571158;广东省电信有限公司广州市分公司,广州,510230 |
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| 摘 要： | 采用菱形搜索算法对各种视频测试序列中运动矢量的研究,基于H.264视频编码标准提出了一种快速块匹配运动估计算法。它是以图像中相邻宏块之间的时空相关性为前提,结合了分布式菱形搜索,预测搜索和中止阈值等一系列技术而提出的,试验结果表明该算法在运算速度方面优于菱形搜索,而获得与全搜索相当的峰值信噪比。
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| 关 键 词： | 块匹配运动估计 菱形搜索 初始搜索中心预测 视频编码 |
| 文章编号： | 1002-8331（2006）32-0027-04 |
| 收稿时间： | 2006-07-01 |
| 修稿时间： | 2006-07-01 |
Efficient Fast Block-Matching Motion Estimation Algorithm |
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| HE Shu-qian,ZHANG Xue-ping,ZOU Fang-nan,Gui Zhan-ji. Efficient Fast Block-Matching Motion Estimation Algorithm[J]. Computer Engineering and Applications, 2006, 42(32): 27-30 |
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| Authors: | HE Shu-qian ZHANG Xue-ping ZOU Fang-nan Gui Zhan-ji |
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| Affiliation: | 1.Department of Computer Science and Education Technology,Hainan Normal University, Haikou 571158, China ; 2.Guangdong Telecom Co. Ltd., Guangzhou Branch, Guangzhou 510230, China |
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| Abstract: | This paper presents a fast block matching motion estimation algorithm for H.264/AVC coding standard,based on a study of the Motion Vector(MV) obtained by the predictive diamond searching algorithm among several test sequences.We found that diamond search are faster and robust for most type of sequence.Based on temporal and spatial motion correlation among adjacent blocks in images,we propose a new fast and efficient block motion estimation algorithm which combine a series of skills such as distributed diamond search,the prediction process for motion estimation and early termination.Experimental results show that the speed of our proposed algorithm is faster than Predictive Diamond Searching Algorithm(PDSA),and this method even achieves closer to peak-signal-to-noise ratio(PSNR) of Full-Search Algorithm(FSA). |
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| Keywords: | block matching motion estimation diamond search the initial center prediction video coding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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