基于目标轮廓几何特征的电容元件定位方法

发布时间：2018-03-08 02:15

本文选题：电容元件　切入点：角点检测　出处：《计算机工程与科学》2017年08期 　论文类型：期刊论文

【摘要】：随着印刷电路板(PCB)生产工艺愈加复杂,电容元件的定位识别难度也随之增加。在实际生产中,为了节约成本、减少出错率,需要在焊接之前对电路板进行检测,同时为了固定电路板上元器件,一般会使用压板固定电路板。针对此种情况,提出一种复杂背景下被遮盖电容元件的定位方法,通过对采集到的PCB图像进行预处理、阈值分割、边缘提取和Harris角点检测等操作,进而根据电容元件目标轮廓的几何特征对元件进行定位。该方法已经在实践中得到应用,定位准确率高、速度快,能广泛应用于实际生产中。
[Abstract]:With the increasing complexity of PCB (printed Circuit Board) manufacturing process, the difficulty of locating and identifying capacitive components increases. In order to save cost and reduce error rate, the PCB needs to be tested before welding. At the same time, in order to fix the components on the circuit board, the pressure plate is usually used to fix the circuit board. In view of this situation, a location method of the covered capacitor element in the complex background is proposed, which can preprocess the collected PCB image and segment the threshold value. The edge detection and Harris corner detection are used to locate the components according to the geometric features of the target contour of the capacitors. This method has been applied in practice with high accuracy and high speed. It can be widely used in practical production.
【作者单位】：中国矿业大学计算机学院;
【基金】：国家自然科学基金(51204185,51034005) 中国博士后科学基金面上项目(2012M521147) 国家重点基础研究发展计划(973计划)(2013CB227900) 国家863计划(2012AA062004) 江苏省产学研项目(BY2013019-04)
【分类号】：TN41;TP391.41

【相似文献】