| 基于对象的菱表搜索运动估计方法 |
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| 引用本文： | 洪波,余松煜.基于对象的菱表搜索运动估计方法[J].数据采集与处理,2001,16(1):110-114. |
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| 作者姓名： | 洪波 余松煜 |
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| 作者单位： | 上海交通大学图像通信与信息处理研究所 |
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| 摘 要： | ＭＰＥＧ－４是一个基于对象的视频标准，其运动估计方法不同于其他视频标准，本文提出一种基于对象的菱形搜索运动估计算法，利用图像分割信息和运动矢量的相关性，减少了得到运动矢量所需要的平均搜索点数，实验结果表明，在降低计算复杂度的同时，本算法保持了较好的图像质量。
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| 关 键 词： | 运动估计 菱形搜索 面向对象 MPEG－4 视频编码 图像序列 |
| 文章编号： | 1004-9037(2001)01-0110-05 |
| 修稿时间： | 2000年2月24日 |
Object-Based Motion
Estimation Method Using Diamond Search |
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| Hong Bo Yu Songyu Institute of Image Communication and Information Processing,Shanghai Jiaotong University Shanghai ,P.R.China.Object-Based Motion
Estimation Method Using Diamond Search[J].Journal of Data Acquisition & Processing,2001,16(1):110-114. |
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| Authors: | Hong Bo Yu Songyu Institute of Image Communication and Information Processing Shanghai Jiaotong University Shanghai PRChina |
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| Affiliation: | Hong Bo Yu Songyu Institute of Image Communication and Information Processing,Shanghai Jiaotong University Shanghai 200030,P.R.China |
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| Abstract: | MPEG-4 is an object-based video standard, the motion estimation method of MPEG-4 is different from other video standards. This paper proposes an object-based motion estimation algorithm using diamond search. Based on the segmentation information of the picture and the correlation of motion vectors, the proposed algorithm can reduce the average search points in getting motion vectors. Experimental results show that the algorithm is computationally efficient while keeping better image quality. |
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| Keywords: | motion estimation diamond search object-based |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
