| 一种新的视频编码的块运动估计算法 |
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| 引用本文： | 骆立俊,邹采荣,何振亚. 一种新的视频编码的块运动估计算法[J]. 通信学报, 2000, 21(2): 55-59 |
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| 作者姓名： | 骆立俊 邹采荣 何振亚 |
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| 作者单位： | 东南大学无线电工程系,江苏,南京,210096 |
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| 基金项目： | 国家攀登计划 (神经网络 )重大项目基金资助!(NSC92 0 97)，东南大学与菲立浦公司消费电子领域合作基金 |
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| 摘 要： | 本文提出了一种连续判别的非线性预测搜索ＮＰＳＳＤ块运动估计算法，可以用于视频压缩的一些国际标准，如Ｈ．２６１，Ｈ．２６３，ＭＰＥＧ１，ＭＰＥＧ２，ＨＤＴＶ中。ＮＰＳＳＤ算法充分利用了序列图像的实际运动矢量与预测矢量之间的位移的空间分布特性－－中心偏置分布特性和时间上的相关特性，并在搜索过程中采用了中止判别和搜索判别，可以明显地减少运动搜索复杂度。仿真表明这种算法减少了搜索次数，提高了搜索效率，降低
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| 关 键 词： | 块运动估计 MPEG1 MPEG2 H.261 H.263 视频编码 |
| 修稿时间： | 1997-05-22 |
A new block motion estimation scheme for video coding |
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| LUO Li-jun,ZOU Cai-rong,HE Zhen-ya. A new block motion estimation scheme for video coding[J]. Journal on Communications, 2000, 21(2): 55-59 |
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| Authors: | LUO Li-jun ZOU Cai-rong HE Zhen-ya |
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| Abstract: | A nonlinear prediction search algorithm with successive differentiation(NPSSD)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.The NPSSD method has fully made use of the spatial characteristics of center biased displacement between motion vector and corresponding prediction vector.Meanwhile it has also adopted the halfway stop technique and the searching differentiation technique.Therefore this method can significantly reduces the search times.Simulation results show that the proposed NPSSD algorithm is efficient to reduce search times and computational complexity of motion estimation.Comparisons of NPSSD with other fast search algorithms are also given in detail. |
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| Keywords: | motion estimation MPEG1 MPEG2 H.261 H.263 HDTV |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
