摘要
基于投影理论讨论了匹配投影边组特性,以及对应的空间边包含空间顶点为内点(因与其他空间边重叠,所以该边是无效的)或隐含了切割点(常规方法无法求得的形体顶点)的条件,以此为基础提出了防止生成重叠边、求切割点的新方法.
Based on the projective theory,the properties of matching projection edges and the conditions whether the corresponding 3D edge contains internal vertices （the edge is invalid because of its overlapping with others）,or cutting vertices （solid vertices which cannot be obtained by common method）were discussed in this paper. Based on the properties and the conditions,a new approach which prevents overlapping edges and resolves cutting vertices was proposed also.
出处
《长沙理工大学学报（自然科学版）》
CAS
2007年第3期74-78,共5页
Journal of Changsha University of Science and Technology:Natural Science
基金
湖南省教育厅科研资助项目(06hnjy049)
关键词
三维重建
三视图
B-REP模型
切割点
内点
3D reconstruction
orthographic views
B-Rep model
cutting vertex
internal vertex
