| Global motion estimation with Gabor wavelet transform |
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| 引用本文： | 王朋,刘重庆. Global motion estimation with Gabor wavelet transform[J]. 系统工程与电子技术(英文版), 2005, 16(3) |
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| 作者姓名： | 王朋 刘重庆 |
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| 作者单位： | Inst .of I mage Processing &Pattern Recognition，Shanghai Jiaotong Univ，Inst .of I mage Processing &Pattern Recognition，Shanghai Jiaotong Univ Shanghai 200030，P. R. China，Shanghai 200030，P. R. China |
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| 摘 要： | 1 .INTRODUCTIONIn video compression algorithms , motion esti mationand motion compensation are widely used. However ,the motion of camera has not been considered several-ly until Mpeg4 and H.263 encoding standards werepresented .Inthelast several years ,global motiones-ti mation has become more i mportant in transmissionvideo in different applications such as network ser-vice , multi media communication and personal com-munication device . Alot of researches showthat theprecise global mo…
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Global motion estimation with Gabor wavelet transform |
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| Wang Peng,Liu Chongqing. Global motion estimation with Gabor wavelet transform[J]. Journal of Systems Engineering and Electronics, 2005, 16(3) |
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| Authors: | Wang Peng Liu Chongqing |
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| Affiliation: | Inst.of Image Processing & Pattern Recognition,Shanghai Jiaotong Univ.,Shanghai 200030,P.R.China |
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| Abstract: | A novel algorithm of global motion estimation is proposed. First, through Gabor wavelet transform (GWT), a kind of energy distribution of image is obtained and checkpoints are selected according to a probability decision approach proposed. Then, the initialized motion vectors are obtained via a hierarchal block matching based on these checkpoints. Finally, by employing a 3 parameter motion model, precise parameters of global motion are found. From the experiment, the algorithm is reliable and robust. |
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| Keywords: | global motion estimation Gabor wavelet transform probability decision block matching. |
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