中文摘要：

对基于结构光视觉传感的搭接焊缝的图像预处理及信息提取进行了研究.CCD摄像机采集到的焊缝图像,经过低通滤波、阈值变换、拉普拉斯锐化、细化一系列图像预处理后,准确提取了焊缝激光条纹信息,运用搜索法检测焊缝位置.根据搭接焊缝偏中距离和焊缝高度的计算方法提取信息,实现焊缝的自动跟踪.

英文摘要：

The image processing and information acquire of overlap joints seam based on structure light vision sensing was studied. After the image taken by CCD camera was processed by low - pass filtering, threshold transform, Laplace sharpening, thinning, laser stripe information was acqired exactly, then the seam position was detected by searcher method. According the calculation method of overlap joint＇s offset and height, the information was acquired and seam tracking was realized.