Because of the illumination, geometry distortion and the Angle of camera, it results in getting multiple geometry centers in the process of template match to the images which are shot by the camera.

由于光照、几何形变、摄像头角度等原因，在对拍摄得到的图像进行模板匹配的过程中发现图形的几何中心不唯一。

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A New Method for Measuring the Rifling Angle of Artillery Pipe Based on Template Matching.

基于模板匹配的火炮身管膛线缠角测量技术研究。

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So this is giving me now that template, better way of saying it, all right, a template now, for a point is x, y, radius, angle.

其他的方法来进行计算，但是这就是典型的我，要放置它们的地方，因此这就给了我一个模板。

麻省理工公开课 - 计算机科学及编程导论课程节选