基于计算机成像技术的焊缝缺陷形状自动检测系统  

Automatic detection system of weld defects shape based on computer imaging technology

作　　者：马战宝[1] 田跃欣[1] 

机构地区：[1]河南交通职业技术学院,河南郑州450005

出　　处：《电焊机》2015年第5期131-135,共5页Electric Welding Machine

基　　金：河南省教育厅专业课程体系与教学内容改革研究实践项目一等奖(豫教【2012】00829)

摘　　要：数字成像技术是最新引进的一种用以代替传统电影的无胶片数字化射线图像,它是一种用来显示检测到的样本内部条件的无损技术,同时也是一种高效的缺陷检测技术。焊缝缺陷是一种危害完工焊接样本效用的缺陷。在数字化射线图像技术中,可以通过提取分界线完成焊缝缺陷的分割,这是一项可以用于缺陷特征分析的重要任务。本研究的目的是摘录焊缝缺陷,评估其几何特性,通过将图像转换为二进制形式来提取缺陷边界。Digital imaging technology is the latest intrnduetion of a filndess digital X-ray image to replace the traditional film. It is a kind of nondestructive technoh）gy used to display the internal conditions of detected sample,also a kind of efficient defect deteetion technology. Weld defect is a kind of harm finished welding defect sample utility. Digital X-ray image techniques,can complete the weld defect by extracting the boundary segmentation ,this is an important task that can be used for defect feature analysis. The purpose of this study is to extract weld defects,the evaluation of its geometrical characteristics. Through the convert image to binary form to extract the defect boundary.

关 键 词：数字成像 焊缝缺陷 特征分析 阈值 

分 类 号：TG409[金属学及工艺—焊接]