| 基于法矢的散乱数据边界特征点自动提取算法 |
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| 引用本文： | 孙肖霞,孙殿柱,李延瑞,范志先.基于法矢的散乱数据边界特征点自动提取算法[J].机械设计与制造,2006(11):134-136. |
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| 作者姓名： | 孙肖霞 孙殿柱 李延瑞 范志先 |
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| 作者单位： | 山东理工大学,机械工程学院,淄博,255049 |
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| 基金项目： | 山东省自然科学基金;山东省教育厅资助项目 |
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| 摘 要： | 提出了一种基于翼边法矢的边界特征提取算法。在波前扩展算法中,采用了新的节点搜寻和波前更新方法,在波前扩展的同时计算波前边的两翼法矢夹角,根据网格边两翼法矢夹角识别出边界特征点。应用实例证明:该算法可行、有效,为复杂曲面特征曲线的构建奠定了基础。
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| 关 键 词： | 散乱数据 波前扩展 法矢 边界特征提取 |
| 文章编号： | 1001-3997(2006)11-0134-03 |
| 收稿时间： | 2006-02-03 |
| 修稿时间： | 2006年2月3日 |
Algorithm for automatic extraction of boundary characteristic points from scatter data based on normal |
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| SUN Xiao-xia,SUN Dian-zhu,LI Yan-rui,FAN Zhi-xian.Algorithm for automatic extraction of boundary characteristic points from scatter data based on normal[J].Machinery Design & Manufacture,2006(11):134-136. |
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| Authors: | SUN Xiao-xia SUN Dian-zhu LI Yan-rui FAN Zhi-xian |
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| Affiliation: | School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China |
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| Abstract: | An extraction algorithm of boundary characteristic point based on normal is proposed,in which novel node searching and front update methods are presented to advance front,the wing's normal of front edges are computed during the extension of the front,and points of boundary characteristic are extracted according to the angle between normals of two wings of the mesh line.Then the proposed algorithm is proved to be feasible and valid by an application,which establishes the groundwork for the construction of feature lines about complex surface. |
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| Keywords: | Scatter data Advancing front Normal Boundary characteristic extraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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