| 利用Gabor滤波的相位图像进行光流估计 |
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| 引用本文： | 段先华,王元全,王平安,夏德深.利用Gabor滤波的相位图像进行光流估计[J].计算机辅助设计与图形学学报,2005,17(10):2157-2161. |
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| 作者姓名： | 段先华 王元全 王平安 夏德深 |
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| 作者单位： | 南京理工大学计算机系,南京,210094;江苏科技大学电子信息学院,镇江,212003;南京理工大学计算机系,南京,210094;香港中文大学计算机科学与工程系,香港 |
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| 基金项目： | 香港特区政府研究资助局资助项目（CUHK/4180/01E,CUHK/1/00C） |
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| 摘 要： | 提出一种联合Gabor滤波器和加权最小二乘法估计序列图像光流的方法，用Gabor滤波器的滤波结果作为新的图像特征来计算空间和时间相位梯度．为了获得较为精确的结果，用加权最小二乘法来估计序列图像的光流．实验结果表明，文中算法在光流的计算精度上要优于Lueas，Fleet等的方法．
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| 关 键 词： | 光流 Gabor滤波器 相位梯度 加权最小二乘法 |
| 收稿时间： | 2004-06-08 |
| 修稿时间： | 2004-06-082005-01-24 |
Estimation of Optical Flow for Phase Image Using Gabor Filter Banks |
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| Duan Xianhua,Wang Yuanquan,Pheng Ann Heng,Xia Deshen.Estimation of Optical Flow for Phase Image Using Gabor Filter Banks[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(10):2157-2161. |
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| Authors: | Duan Xianhua Wang Yuanquan Pheng Ann Heng Xia Deshen |
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| Affiliation: | Department of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing 210094; 2 School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003;3 Department of Computer Science and Engineering, Chinese University of Hong Kong , Hong Kong |
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| Abstract: | In the paper, a new algorithm for estimating the optical flow of image sequences is presented, by combining Gabor filter banks with weighted least-squares. The results of Gabor filter banks are used as the new features of image for the computation of the spatial-temporal phase gradient. In order to obtain more accurate results, the optical flow of sequence image is estimated by the method of weighted leastsquares. The results of the experiments indicate that more accurate results of optical estimation can be obtained compared with the methods suggested by Lucas, Fleet, et al. |
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| Keywords: | optical flow Gabor filter banks phase gradient weighted least-squares |
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