摘要
双目视觉技术可用于PCB裸板的缺陷检测,而精确定位则是这一应用的前提。利用LabVIEW的IMAQ Vision模块,进行了电路板的双目视觉定位技术的研究,通过搭建双目视觉定位系统,并对双目相机进行标定,获得给定电路板的图像;对电路板进行边沿检测,建立坐标系统,完成电路板测试点的位置确定;经视差计算,获得电路板测试点的位置坐标,完成定位。经过对不同测试点进行试验验证,本系统具有较好的准确性及稳定性。
Binocular vision technology can be used for defect detection of PCB bare plate,and accurate positioning is the basis of this application.In this paper,using IMAQ vision module of LabVIEW,the research on binocular vision positioning technology of circuit board is carried out.By building binocular vision system and calibrating binocular camera,the image of a given circuit board is obtained.Circuit board edge detection,coordinate system and line searching are carried out to determine the position of test points of circuit board.The position coordinates of the board test points complete the positioning of the board test points.The system has good accuracy and stability through the test of different test points of circuit boards.
作者
王磊
WANG Lei(College of Electronics and Information Engineering,Ankang University,Ankang,Shanxi 725000,China)
出处
《微型电脑应用》
2020年第7期147-150,共4页
Microcomputer Applications
