基于斜率分析法的焊缝条纹直线特征提取分析
Feature extraction and analysis of weld seam stripe line on slope analysis method
-
摘要: 提出了一种基于直线拟合的斜率分析法，用于提取线结构光焊缝条纹特征直线. 该方法将光条上的所有n个像素点按坐标大小顺序排列，从起始点开始顺次推移，每连续n0个光点进行直线拟合，共记录n-n0个斜率值，通过斜率变化特征计算光点在各条纹直线上的分布数量,以完成点集划分，根据划分后的各点集拟合直线作为求得的焊缝特征直线，最后讨论了参量n0对拟合直线的影响. 结果表明，该方法能够有效地检测角接、搭接及V形等各类焊缝特征直线，满足焊缝检测的试验现场要求.Abstract: For extracting the weld seam feature lines in line structured light stripe, a slope analysis method based on linear fitting is proposed. In this method, all the n pixels in the light stripe are arranged in the order of the coordinates, progressive from the starting point, linear fittings are performed for each consecutive points, and total n0 values of the slope are recorded. The number distribution of the points in each stripe line is calculated by the change characteristics of the slope and point set division is completed. According to the division of the point set, linear fitting are performed and these fitted lines are taken as the weld seam feature lines. Finally, the influence of parameter n0 on the fitting lines is discussed. The experiment results indicate that this method can efficiently extract the feature lines in corner butt welding, overlap butt welding and V-groove welding seam and meets actual field requirements.
-
-
[1] Nele L, Sarno E, Keshari A, An image acquisition system for real-time seam tracking[J]. Int. J Adv. Manuf Technol, 2013, 69(7): 2099-2110.[2] Chen H Y， Liu W P， Huang L Y. The decoupling visual feature extraction of dynamic three-dimensional V-type seam for gantry welding robot[J]. Int. J Adv. Manuf Technol, 2015, 80(9): 1741-1749.[3] 邓景煜, 秦 涛， 张 珂， 等. 基于动态小窗Hough变换法的焊缝特征直线提取[J]. 焊接学报， 2011， 32(11)： 37-40. Deng Jingyu， Qin Tao， Zhang Ke,etal. Extracting weld seam by Hough transform based on dynamic windows[J]. Transactions of the China Welding Institution, 2011， 32(11)： 37-40.[4] 陈海永, 孙鹤旭, 徐 德. 一类窄焊缝的结构光图像特征提取方法[J]. 焊接学报, 2012, 33(1): 61-64. Chen Haiyong, Sun Hexu, Xu De. An image feature extraction method for a certain kind of narrowgap weld seam[J]. Transactions of the China Welding Institution, 2012, 33(1): 61-64.[5] 秦 涛， 张 珂， 邓景煜. 基于改进最小二乘法的焊缝特征直线提取方法[J]. 焊接学报， 2012， 33(2)： 33-36. Qin Tao, Zhang Ke, Deng Jingyu. Algorithm of extracting feature lines in welding seam image based on improved least-square method[J]. Transactions of the China Welding Institution, 2012， 33(2)： 33-36.[6] He Y S, Xu Y L, Chen Y X,etal. Weld seam profile detection and feature point extraction for muti-pass route planning based on visual attention model[J]. Robotics and Computer-Integrated Manufacturing, 2016, 37(1): 251-261. -
期刊类型引用(5)
1. 罗雨，高萌萌，许耀波，任飞燕，于俊杰，田文鹏，刘铂洋. 基于虚拟现实的立管横焊机器人辅助焊接工艺设计与实现. 机床与液压. 2024(13): 110-115+236 . 
百度学术
2. 陈昌荣，张子旺，江吉彬，练国富，汪草宏. 基于不确定推理的风电塔筒焊接工艺. 福建工程学院学报. 2023(03): 237-243 . 百度学术
3. 高昶霖，宋燕利，左洪洲，章诚. 基于动态权重的自适应PSO-BP神经网络焊接缺陷成因诊断. 焊接学报. 2022(01): 98-106+119-120 . 本站查看
4. 王巧玲，荣建，陈洪宇，魏艳红，荣佑珍，吴振勇. 航空用焊接数据库及专家系统平台的设计与开发. 电焊机. 2018(09): 16-20 . 百度学术
5. 沈彦. 基于多目标决策法的电站锅炉焊接专家系统设计. 黑龙江大学自然科学学报. 2016(03): 303-307 . 百度学术
其他类型引用(3)
计量
- 文章访问数: 1070
- HTML全文浏览量: 1
- PDF下载量: 608
- 被引次数: 8
下载:
