基于机器视觉的激光加工标记点定位方法  

Laser processing mark point positioning method based on machine vision

作　　者：卢建光 郭辉 LU Jianguang;GUO Hui(Sichuan University of Science and Engineering,Zigong Sichuan 643000,China)

机构地区：[1]四川轻化工大学,四川自贡643000

出　　处：《激光杂志》2023年第5期247-251,共5页Laser Journal

基　　金：四川省科技厅项目(No.2020YFG0178);自贡市科技局项目(No.2019YYJC13)。

摘　　要：激光加工标记点准确定位能够提高工业生产效率,设计一个基于机器视觉的激光加工标记点定位方法。采用机器视觉方法获取信息,并利用视觉的场景切换与重叠数据获取尺度空间信息,对边缘检测,确定边缘检测的范围后对标准圆拟合与中心坐标提取,实现激光加工标记点定位。实验结果表明,所提出的定位方法对标记点的定位更为精准,对于标记点的半径定位偏差小于0.05 mm,而对比方法对标记点的半径定位偏差大于0.07 mm,本方法优于对比方法,具有更好的应用价值。The accurate positioning of laser processing marking points can improve industrial production efficien-cy.A method of laser processing marking points positioning based on machine vision is designed.The machine vision method is used to obtain information,and the visual scene switching and overlapping data are used to obtain the scale space information,and the edge detection is performed.The proposed positioning method is more accurate to the loca-tion of markers,and the positioning deviation for the radius of markers is less than 0.05 mm,while the positioning de-viation for the radius of markers by the comparison method is more than 0.07 mm.The proposed method is superior to the comparison method and has better application value.

关 键 词：机器视觉 激光加工 标记点定位 尺度函数 空间信息 模板匹配 

分 类 号：TN911[电子电信—通信与信息系统]