机械制造与自动化2013，Vol.42Issue(1)：1-5,58,6.
基于视觉的焊接三维重建技术研究现状
TheResearch Status of Visual-Based Three-Dimensional Reconstruction Technology in Welding
摘要
Abstract
The welding technology is an indispensable process technology of industrial production. Traditional welding quality control method, which consists of making process before welding and detecting the weld joint after welding, can not meet the demand of high-quality and precision welding. By using optical sensors, the image of weld pool, weldment and weld seam can be captured, the characters of the targets can be extracted by image processing algorithm, finally the real size and shape of the targets can be extracted by three-dimensional reconstruction algorithm, which is beneficial to extraction of welding quality information, on-line adjustment of welding process and development of remote robot welding. In this paper, the common three-dimensional methods, which is the monocular vision, binocular vision and multi-view stereo vision t methods were firstly analyzed, and then the overview of three-dimensional researches in welding, especially in gas metal arc welding (GMAW) process, was summarized. The three-dimensional reconstruction status of weld groove, weld seam and weld pool in GMAW was summarized in which the Structured-Light method, the Shape-From-Shading method and the Binocular-Stereo method were utilized. At last the shortcomings of three-dimensional reconstruction methods in welding mentioned above were analyzed. The complement of the reconstruction methods and the improvement of efficiency and accuracy of the reconstruction results in welding should be the focus of follow-up study.关键词
智能化焊接/视觉/三维重建/接缝/熔池Key words
intelligent welding/ visual-based/ three-dimensional reconstruction/ weld seam/ weld pool分类
矿业与冶金引用本文复制引用
王克鸿,杨嘉佳,孙科..基于视觉的焊接三维重建技术研究现状[J].机械制造与自动化,2013,42(1):1-5,58,6.基金项目
国家自然科学基金(NO.51075214) （NO.51075214）
