说明：  轮廓匹配，基于给定模板，可以在一定复杂环境下实现对目标的检测，对于一定程度的放大、缩小、平移、旋转都具有良好的检测效果
(Contour matching. Based on template image, object in a certain complex environment with a certain degree of amplification, reduction, translation and rotation could be match in high accuracy.)