热态重轨表面缺陷检测技术

Surface Defect Inspection Technique for Hot Heavy Rail

设计了一套基手机器视觉的热态重轨表面缺陷检测装置，分析了高温状态下重轨辐射特性。硬件采用6台线阵CCD摄像机多角度拍摄重轨，获取重轨的全表面图像，采集的多路图像被实时传输到图像处理工作站。在此基础上，统计热态重轨常见缺陷，研究了热态重轨缺陷检测关键技术，实现了缺陷的判别与定位。

A set of surface defect inspection system for hot heavy rail was designed, and the character of radiation in high temperature for hot heavy rail was analyzed. As for hardware of the system, six linear CCDs have been adopted to shoot the heavy rail from muhi-angle, so that the various surface images could be attained, and multi-channel of images were transmitted to image processing workstation in real time. On this basis, frequent defect for hot heavy rail was presented, the key technique for hot heavy rail was studied, and distinguishing and locating the defect was realized.