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| Received:December 15, 2008Revised:May 31, 2010 |
| 基金项目:This work was supported by the Chinese National Great Science Project Foundation (No. 2009zx04001-021), Natural Science Foundation of China (No. 51079013), and Basic Scientific Research Specific Foundation of Central Colleges and Universities (No. 2009QN037). |
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| Surface matching method for profile inspection with touch probe |
| Yuqing CHEN,Zi MA,Yuan TIAN,Jialu DU |
| (Automation Research Center, Dalian Maritime University) |
| Abstract: |
| This paper presents an efficient method for rigid registration of 3-D point sets, which intends to match the feature points inspected using touch probe with the points on designed CAD surface. The alignment error is defined as the least square problem, and the sphere radius of the inspection probe is considered. In this framework, the matching problem is converted into acquiring six Euler variables problem by solving nonlinear equations. Thus, a matrix transformation of parameter separation is presented to get the approximate resolution. Finally, iterative cycles are provided to calculate the nearest points on designed surface corresponding to the inspection points. Experiment verification is realized for the presented surface matching method of robot inspection system. |
| Key words: Point matching Touch probe Parameter separation |
