| 一种用于视频编码的块运动估计算法——块特征匹配预测搜索算法 |
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| 引用本文： | 何振亚,邹采荣.一种用于视频编码的块运动估计算法——块特征匹配预测搜索算法[J].电子学报,1999,27(1):32-36. |
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| 作者姓名： | 何振亚 邹采荣 |
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| 作者单位： | 东南大学无线电工程系 |
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| 基金项目： | 国家攀登计划,东南大学与菲立浦公司消费电子领域合作项目资助 |
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| 摘 要： | 本文提出了一种块特征匹配预测搜索ＢＦＭＰＳ算法，可以用于视频压缩的一些国际标准，如Ｈ．２６１，Ｈ．２６３，ＭＰＥＧ１，ＭＰＥＧ２，ＨＤＴＶ中，ＢＦＭＰＳ算法充分利用了序列图像的实际矢量与预测矢量之间距离的空间分布特征，中心偏置分布特性和时间上的相关特性，并采用了中止判决准则，可以明显地减少了运动搜索复杂度，ＢＦＭＰＳ算法在匹配运算中采用 简单有交的块特征匹配准则函数，相应的块匹配计算复杂度，数据读
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| 关 键 词： | 运动估计 MPEG1 MPEG2 HDTV 视频编码 |
A New Block Motion Estimation Scheme for Video Coding Block Feature Matching Algorithm Using Predictive Search |
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| He Zhenya,Zou Cairong,Luo Lijun,Gao Xiqi.A New Block Motion Estimation Scheme for Video Coding Block Feature Matching Algorithm Using Predictive Search[J].Acta Electronica Sinica,1999,27(1):32-36. |
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| Authors: | He Zhenya Zou Cairong Luo Lijun Gao Xiqi |
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| Abstract: | A block feature matching algorithm using predictive search (BFMPS) algorithm that is used for motion estimation in such the international standards as H.261,H.263,MPEG1,MPEG2,and HDTV,is proposed in this paper.Based on the spatial characteristics of center biased distance between motion vector and corresponding prediction vector and temporal correlation of motion vectors,this method can significantly reduces the search times.The BFMPS method uses the simple and effective block feature matching function for block matching,and thus the corresponding complexity of block matching computation,data fetching,and memory management is greatly reduced.Simulation results show that the proposed BFMPS algorithm is efficient to reduce search times and computational complexity of motion estimation.Comparisons of BFMPS with other fast search algorithms are also given in detail. |
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| Keywords: | Motion estimation MPEG1 MPEG2 H 261 H 263 HDTV Video coding |
| 本文献已被 CNKI 维普 等数据库收录！ |
