| 基于三视图的几何重构B-rep算法研究 |
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| 引用本文： | 魏吉双,郭克希,陈宇锋,刘震洲,贺尚红.基于三视图的几何重构B-rep算法研究[J].工程图学学报,2007,28(2):79-84. |
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| 作者姓名： | 魏吉双 郭克希 陈宇锋 刘震洲 贺尚红 |
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| 作者单位： | 长沙理工大学汽车与机械工程学院,湖南,长沙,410076 |
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| 摘 要： | 在讨论保证输出形体与输入视图一致的条件(线段的合法条件)的基础上,改进了确定性面序列判别法.基于线段的合法条件和确定性面序列的性质,提出了视图中的边(2D边)的分类及判别方法,并讨论了2D边与属于输出形体的候选边的对应关系.这些工作可避免几何元素分层构建法(即B-rep法)在有些情况下重构失败或丢失合法输出形体,从而提高了B-rep法的鲁棒性和重构结果的准确性.
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| 关 键 词： | 计算机应用 几何重构 B-rep法 三视图 2D边分类 |
| 文章编号： | 1003-0158（2007）02-0079-06 |
| 收稿时间： | 2005-12-09 |
| 修稿时间： | 2005年12月9日 |
B-rep Approach of 3D Reconstruction from Orthographic Views |
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| WEI Ji-shuang,GUO Ke-xi,CHEN Yu-feng,LIU Zhen-zhou,HE Shang-hong.B-rep Approach of 3D Reconstruction from Orthographic Views[J].Journal of Engineering Graphics,2007,28(2):79-84. |
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| Authors: | WEI Ji-shuang GUO Ke-xi CHEN Yu-feng LIU Zhen-zhou HE Shang-hong |
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| Affiliation: | School of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha Hunan 410076, China |
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| Abstract: | The traditional B-rep approach of 3D reconstruction may fail or lose right output objects in some cases.Based on the study of the conditions which make output object to be identical with input views,the method for finding out certain-face-sequence is improved.Based on the above conditions and the characteristics of certain-face-sequence,the method for classifying 2D edges in views is proposed,and the relation between 2D edges and 3D edges of output objects is discussed too.These resolve the above problems and improve the robust of the B-rep approach. |
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| Keywords: | computer application 3D reconstruction B-rep approach orthographic views category of 2D edge |
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