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.