An efficient global motion estimation algorithm on H.264/AVC compression domain

被引：0
|
作者：
Wang, Zhe [1 ]
Liu, Gui-Zhong [1 ]
Qian, Xue-Ming [1 ]
机构：
[1] Department of Information and Communication Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2011年 / 39卷 / 3 A期
关键词：
Image compression - Motion estimation - Motion Picture Experts Group standards - Vectors - Image coding;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An efficient global motion estimation algorithm on H.264/AVC compression domain is proposed. Due to many technologies of video compression coding used in H.264/AVC, on H.264/AVC compression domain, the motion vector field contains a lot of noise blocks for global motion estimation. The valid motion vector number for global motion estimation is limited. In order to reduce the influence of noise motion vectors and improve accuracy and computational efficiency of global motion estimation, it is necessary to eliminate noise motion vectors during global motion estimation. In this paper, the noise blocks were eliminated efficaciously by using information of MVD (the difference between the current vector and the predicted vector) and reference block for MV prediction in H.264 bits stream. The extensive experiments show that the proposed method is efficient and robust in terms of both computational complexity and accuracy.
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页码：19 / 23
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