文献类型：期刊文献

英文题名：Precision Evaluation of the Reconstruction Model Based on Unigraphics

作者：Liu, Jing[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China

年份：2017

卷号：1 2018-January

起止页码：358

外文期刊名：Proceedings - 2017 10th International Symposium on Computational Intelligence and Design, ISCID 2017

收录：EI(收录号：20182005210296)

语种：英文

外文关键词：Errors - Precision engineering - Quality control - Computerized tomography

摘要：Precision evaluation of the reconstruction model is a focus in reverse engineering. By precision evaluation, quality of the reconstruction model can be evaluated. In this paper, a series of CT slice images were obtained by industrial Computed Tomography (CT) equipment. Then contour points of CT images were extracted by two dimensional Otsu adaptive threshold algorithm and eight neighborhood method. Finally point cloud model was reconstructed by B-spline surface. In the process of precision evaluation, the line profile error and the surface profile error were used as main evaluation parameters. Experiments show that the method can evaluate the precision of the reconstruction model effectively. This can evaluate the whole precision and the local precision effectively. ? 2017 IEEE.