3-Dimensional Surface Inspection System for Pantograph in Railway Nondestructive Testing Based on Laser Line-scanning

被引：3

作者：

Guo, Jie ^{[1
]}

Peng, Jianping ^{[1
]}

Li, Jinlong ^{[1
]}

Gao, Xiaorong ^{[1
]}

Yuan, Meng ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Phys Sci & Technol, 111 Sect 1 North Ring Rd, Chengdu, Sichuan, Peoples R China

来源：

TENTH INTERNATIONAL CONFERENCE ON INFORMATION OPTICS AND PHOTONICS | 2018年 / 10964卷

关键词：

Line-structured light; Pantograph; Denoising; Inspection;

D O I：

10.1117/12.2505938

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a detection system which combined with the line-structured light scanning technology that can visualize the pantograph surface and automatically locate and evaluate the wear condition of the pantograph is proposed. In this system, a three-dimensional camera and a line laser generator are used for acquiring surface data of pantograph. Then Laplacian filtering is used to smooth the data. Proceeded data and standard model are registered by using distance constrained ICP algorithm which combined with geometrical symmetry of pantograph. In this paper, a method to locate and quantify the wear area of the pantograph is proposed, which provides a feasible solution for inspection and visualization of pantograph wear.

引用

页数：8