CAJ | 학술논문

为了能为位置控制提供精确的补偿数据，使贴片元件能够更准确地贴装在 PCB板上，需对视觉系统中元件检测摄像机拍下的元件图像进行图像预处理得到偏移的角度。实现方法是：先对图像进行增强、阈值分割、边缘检测及用八邻域法提取部分边界，然后利用最小二乘法线性拟合原理对提取的边界进行直线拟合得到斜率，进而得到贴片元件偏转的角度。
위료능위위치공제제공정학적보상수거，사첩편원건능구경준학지첩장재 PCB판상，수대시각계통중원건검측섭상궤박하적원건도상진행도상예처리득도편이적각도。실현방법시：선대도상진행증강、역치분할、변연검측급용팔린역법제취부분변계，연후이용최소이승법선성의합원리대제취적변계진행직선의합득도사솔，진이득도첩편원건편전적각도。
In order to provide accurate compensation data for position control to make the surface mounted devices (SMD) accurately mounted on PCB ,we meed to pretreat the image of the element to get the angualr deflection of the SMD .Firstly ,the image is enhanced and treated by threshold segmentation and edge detection to get the edge of the picture .Then the slope of edge is obtained by linear fitting .At last ,the deflection angle of the element can be calculated .