焊接电弧高速摄像技术成像方法对比及分析

一般采用2种方法拍摄焊接电弧激光高速图像：一种是将电弧激光的像成在屏幕上,再用高速相机摄取;另一种是直接将电弧激光的像成在高速摄像机靶面上。分别对上述2种电弧激光图像的拍摄方法进行了对比试验,利用MATLAB软件的图像处理技术对所得图片进行了边缘提取和对比分析。结果表明,将电弧激光的像直接成在摄像机靶面上所得图像的清晰度高且边缘连贯,比借助成像屏成像效果好,故拍摄焊接电弧激光高速图像宜采用将电弧激光的像直接成在摄像机靶面上进行拍摄。

Contrast and Analysis of Imaging Methods of Welding-arc High-speed Video Technology

Welding arc imaging method of high-speed video technology includes two kinds,one is to get pictures in imaging screen which will be shot by high-speed video,and another is directly stored in the camera target surface.The paper experimented with the two methods respectively and collected images,used the MATLAB image processing technology to detect the image edge,and contrasted the two different imaging methods.The result showed imaging directly in the camera target surface can get higher resolution images and the edge is more clearly than imaging in screen.Therefore,directly stored in the camera target surface is the best method for welding-arc imaging of high-speed video technology.