Research on Large Field of View Mosaic Technology Based on Surface Structured Light

Abstract

In the actual production measurement process, the vision of machine vision is to broaden the application scene of surface structured light and realize the surface measurement and detection of large parts. This paper introduces a 3D image mosaic system based on fringe projection. The sensor system is composed of a DLP projector and a 3D camera, and is fixed at the end of the robot arm. The three-dimensional point cloud data of the workpiece surface to be measured is obtained by moving the manipulator and using the raster projection method. An algorithm of rough positioning using manipulator is proposed, and the automobile splicing experiment is carried out. Experimental results show that this method can effectively obtain 3D point cloud data and has good stitching accuracy.