激光焊接熔池图像光斑中心线性定位算法  

Linear Location Algorithm for Laser Welding Molten Pool Image Spot Center

作　　者：李晓东 Li Xiaodong(School of information and electromechanical engineering,Zhengzhou Business University,Zhengzhou,Henan 451200,China)

机构地区：[1]郑州商学院信息与机电工程学院,河南郑州451200

出　　处：《应用激光》2022年第6期1-7,共7页Applied Laser

基　　金：河南省高等学校青年骨干教师培养计划(2018GGJS192);河南省科技攻关项目(182102210548)。

摘　　要：针对目前算法对激光焊接熔池图像进行光斑中心定位时,由于未能对图像信息进行有效地干扰抑制,导致该算法在中心定位过程中,存在定位精度低、定位效果差以及定位性能低的问题,提出激光焊接熔池图像光斑中心线性定位算法。该算法首先对激光熔池图像进行去噪、干扰抑制、信息增强等处理,并依据处理结果提取图像特征;再使用Hough变换方法对图像特征参数进行变换,完成激光光斑中心信息的提取;最后通过提取的信息,实现激光光斑中心的线性定位。试验结果表明,运用该算法进行光斑中心定位时,定位精度高、定位效果好以及定位性能强。Aiming at the problems of low positioning accuracy,poor positioning effect and low positioning performance in the center positioning process of the current algorithm,a linear positioning algorithm for the spot center of laser welding pool image is proposed.Firstly,the laser molten pool image is processed by denoising,interference suppression and information enhancement,and the image features are extracted according to the processing results.Secondly,Hough transform method is used to transform the image characteristic parameters to complete the extraction of laser spot center information.Finally,the linear positioning of the laser spot center is realized through the extracted information.Experimental results show that:when the algorithm is used to locate the spot center,it has high positioning accuracy,good positioning effect and strong positioning performance.

关 键 词：激光焊接 熔池图像 光斑中心 线性定位 定位算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]