南京航空航天大学学报（英文版）2021，Vol.38Issue(3)：383-392,10.
基于线结构光的焊缝特征尺寸检测方法
Method for Detecting Weld Feature Size Based on Line Structured Light
摘要
Abstract
With the rapid development of the machining and manufacturing industry,welding has been widely used in forming connections of structural parts. At present, manual methods are often used for welding and quality inspection,with low efficiency and unstable product quality. Due to the requirements of visual inspection of weld feature size,a visual inspection system for weld feature size based on line structured light(LSL)is designed and built in this paper. An adaptive light stripe sub-pixel center extraction algorithm and a feature point extraction algorithm for welding light stripe are proposed. The experiment results show that the detection error of the weld width is 0.216 mm,the detection error of the remaining height is 0.035 mm,the single measurement costs 109 ms, and the inspection stability and repeatability of the system is 1％. Our approach can meet the online detection requirements of practical applications.关键词
光学检测/焊缝/特征尺寸/光条中心提取/特征点提取Key words
optical inspection/weld/feature size/light stripe center extraction/feature point extraction分类
信息技术与安全科学引用本文复制引用
朱华煜,陆永华,李雁龙,谭杰,冯强..基于线结构光的焊缝特征尺寸检测方法[J].南京航空航天大学学报（英文版）,2021,38(3):383-392,10.基金项目
This work was supported by the Na?tional Natural Science Foundation of China(No.51975293)and the Aeronautical Science Foundation of China(No.2019ZD052010). （No.51975293）
