Stitching for a large area of surface topography analysis of diamond grinding wheel
It is necessary to stitch small area of images together for large surface analysis while the measurement instrument used with a limited measurement area,e.g.White-Iight Interferometry (WLI)-based system.A new stitching method is proposed in this paper for diamond grinding wheel surface analysis.The images are captured by a WLI-based system and the 3D images stitching requires an overlapping region of 30%-50%.First.two-step intensity correlation matching method is used to obtain several pairs of matched points fast and the RANSAC (Random Sample Consensus) algorithm is adopted to screen them to get exact pairs of matched points.Then the measurement errors are adjusted and a stitched topography is got after data fusion.Experiments show that this method can effectively stitch 3D images of diamond grinding wheel together in less than 4 minutes with a correlation coefficient above 0.9 for two horizontal overlapping regions after adjustment.
White-Iight Interference grinding wheel surface 3D topography stitching overlapping region two-step intensity correlation matching adjustment
Shuang Wang Changcai Cui Chunqi Huang Hui Huang Ruifang Ye Shiwei Fu
College of Mechanical Engineering and Automation Huaqiao University, Xiamen, 361021 CHINA
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-8
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）