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基于对数极坐标变换和仿射变换的目标识别定位方法
引用本文:张伟,任仙怡,张桂林,张天序.基于对数极坐标变换和仿射变换的目标识别定位方法[J].中国图象图形学报,2006,11(9):1255-1259.
作者姓名:张伟  任仙怡  张桂林  张天序
作者单位:华中科技大学图象识别与人工智能研究所图象信息处理与智能控制教育部重点实验室,武汉430074
摘    要:由于传统的模板相关匹配算法在目标图像发生较大旋转和放大时,定位结果可能会发生偏差,因此为了取得精度更高的目标识别结果,提出了一种基于对数极坐标变换粗匹配,结合仿射变换精匹配的目标图像识别定位方法,以用于在视场中自动搜索相对于模板图像有平移、旋转和尺度变化的目标图像。实验结果表明,该算法不仅定位精度高,而且相对于传统的模板匹配算法有更强的鲁棒性。

关 键 词:对数极坐标变换  仿射变换  相关匹配
文章编号:1006-8961(2006)09-1255-05
收稿时间:2005-03-11
修稿时间:2005-07-13

An Robust Object Locating Method Based on Log-polar Transform and Affine Transform
ZHANG Wei,REN Xian-yi,ZHANG Gui-lin,ZHANG Tian-xu,ZHANG Wei,REN Xian-yi,ZHANG Gui-lin,ZHANG Tian-xu,ZHANG Wei,REN Xian-yi,ZHANG Gui-lin,ZHANG Tian-xu and ZHANG Wei,REN Xian-yi,ZHANG Gui-lin,ZHANG Tian-xu.An Robust Object Locating Method Based on Log-polar Transform and Affine Transform[J].Journal of Image and Graphics,2006,11(9):1255-1259.
Authors:ZHANG Wei  REN Xian-yi  ZHANG Gui-lin  ZHANG Tian-xu  ZHANG Wei  REN Xian-yi  ZHANG Gui-lin  ZHANG Tian-xu  ZHANG Wei  REN Xian-yi  ZHANG Gui-lin  ZHANG Tian-xu and ZHANG Wei  REN Xian-yi  ZHANG Gui-lin  ZHANG Tian-xu
Abstract:The traditional correlation matching method has poor performance with large biases in the presence of the(object's) large scale change and rotation angles.So,in order to get more high precisely locating result,proposed a robust object locating method based on log-polar transform and affine transform which can locate the object misaligned by scale and rotation changes to the template.Experimental results showed that the algorithm not only causes high precisely locating result,but also more robust relative to the traditional correlation matching method.
Keywords:log-polar transform  affine transform  correlation matching
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