| 一种基于LED和线激光的钢轨表面缺陷检测系统 |
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| 引用本文： | 张朝勇.一种基于LED和线激光的钢轨表面缺陷检测系统[J].科学技术与工程,2012,12(36):9877-9880,9884. |
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| 作者姓名： | 张朝勇 |
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| 作者单位： | 四川大学制造科学与工程学院,成都,610065 |
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| 基金项目： | 四川省科技厅科技支撑计划项目资助 |
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| 摘 要： | 提出了一种二维视觉和三维视觉相结合的钢轨表面缺陷检测方法。钢轨踏面分别在LED板光源和激光线光源的照射下,由两台面阵相机单独采集图像。扫描钢轨表面并把图像传送回主机,通过特征提取和图像处理,分别获取表面缺陷的大小和形状,以及缺陷的深度信息。实现了视频和激光检测的融合与互补。实验表明,与单独使用可见光图像识别,或者单独使用线激光检测相比,系统检测效果更好。
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| 关 键 词： | 机器视觉 激光三角法 钢轨表面缺陷 图像处理 |
| 收稿时间： | 8/8/2012 3:40:16 PM |
| 修稿时间： | 2012/8/23 0:00:00 |
Inspection System for Detection of Defects on Rail Surface Based on LED and Linear Laser |
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| zhangchaoyong.Inspection System for Detection of Defects on Rail Surface Based on LED and Linear Laser[J].Science Technology and Engineering,2012,12(36):9877-9880,9884. |
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| Authors: | zhangchaoyong |
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| Institution: | (College of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065,P.R.China) |
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| Abstract: | A new method for rail surface defects detection is presented in the paper, which combines the techniques of machine vision and three-dimensional linear laser detection. Rail surface was scanned by two area scan cameras in the illumination of LED array and linear laser respectively, and then the images were transported to a host computer. The system recognized the rail surface defects in size, shape and depth by feature extraction and image processing. The experimental results showed that the performance of the detection system is much better than either of the traditional machine vision system and linear laser inspection system. |
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| Keywords: | machine vision laser triangle method rail surface defects image processing |
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