Using four subpixel-locating methods to obtain the center of micro parts, which are template-matching method, core-shape method, centrobaric gray method, and edge-fitting method.3.

• 2．利用模板匹配法、型心法、灰度重心法和边缘拟合法等四种亚像素定位方法实现了对零件中心位置的检测；