| 旋转不变性图像模板匹配快速算法 |
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| 引用本文： | 谢志江,吕波,刘琴,陈平. 旋转不变性图像模板匹配快速算法[J]. 吉林大学学报(工学版), 2013, 43(3): 711-717 |
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| 作者姓名： | 谢志江 吕波 刘琴 陈平 |
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| 作者单位： | 1. 重庆大学机械传动国家重点实验室,重庆400044;重庆大学机械工程学院,重庆400044
2. 重庆大学机械传动国家重点实验室,重庆,400044 |
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| 摘 要： | 综合利用图像梯度幅值统计的旋转不变性,梯度角度统计的旋转迁移性以及图像梯度角度统计的旋转自相关系数分布对称性,基于图像的3种不同特征,分两步精确快速地完成了统计匹配运算。仿真试验结果显示:本文算法在模板图像发生任意角度旋转的情况下匹配性能好。该算法时间复杂度小,并且在模板图像灰度发生一定程度的非线性变换、缩放、遮挡等情况时仍具有良好的鲁棒性能。
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| 关 键 词： | 计算机应用 模板匹配 图像梯度 旋转不变性 图像梯度角度统计 图像梯度幅值统计 |
Rotation-invariant and fast image template matching algorithm |
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| XIE Zhi-jiang,LYU Bo,LIU Qin,CHEN Ping. Rotation-invariant and fast image template matching algorithm[J]. Journal of Jilin University:Eng and Technol Ed, 2013, 43(3): 711-717 |
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| Authors: | XIE Zhi-jiang LYU Bo LIU Qin CHEN Ping |
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| Affiliation: | 1(1.State Key Lab of Mechanical Transmissions,Chongqing University,Chongqing 400044,China;2.College of Mechanical Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | A rotation-invariant algorithm use for image template matching is proposed.This algorithm utilizes the rotation invariance of the image gradient amplitude,the rotation migration of the image gradient angle,and the distribution symmetry of the autocorrelation coefficient of the image gradient angle.The algorithm is divided into two steps to complete precisely and rapidly statistical and matching calculation based on three types of different characteristics of the images.Simulation results show that the algorithm can precisely locate the template image,which is with arbitrary angle.The algorithm has good real-time matching performance and less time-complexity.Even in the case of nonlinear transformation with image grayscale,image scaling and image occlusion,the template matching operation using this algorithm has strong robustness. |
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| Keywords: | computer application template matching image gradient rotation-invariant statistics of image gradient angle statistics of image gradient amplitude |
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