| 基于曲率特征的自由曲面匹配算法 |
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| 引用本文： | 徐金亭,刘伟军,孙玉文. 基于曲率特征的自由曲面匹配算法[J]. 计算机辅助设计与图形学学报, 2007, 19(2): 193-197 |
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| 作者姓名： | 徐金亭 刘伟军 孙玉文 |
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| 作者单位： | 中国科学院沈阳自动化研究所先进制造技术重点实验室,沈阳,110016;中国科学院研究生院,北京,100049;中国科学院沈阳自动化研究所先进制造技术重点实验室,沈阳,110016;大连理工大学精密与特种加工教育部重点实验室,大连,116024 |
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| 摘 要： | 针对无任何预知联系下的自由曲面匹配问题,提出了一种简捷、快速的匹配方法.该方法以曲面的曲率为联系特征,在测量数据与模型曲面之间建立起满足角度、距离约束的对应关系,利用三点旋转平移变换法生成旋转平移变换列表;然后通过最小距离目标函数选取正确的三维坐标变换,实现测量数据与模型曲面之间的准确匹配.实验结果表明:该方法简捷、可靠且容易实现,特别适用于工件的测量定位和多视数据的融合.
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| 关 键 词： | 自由曲面匹配 曲率 三角约束 最小距离目标函数 |
| 收稿时间： | 2006-05-29 |
| 修稿时间： | 2006-05-292006-10-24 |
Algorithm for Free-Form Surface Matching Based on Curvatures |
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| Xu Jinting,Liu Weijun,Sun Yuwen. Algorithm for Free-Form Surface Matching Based on Curvatures[J]. Journal of Computer-Aided Design & Computer Graphics, 2007, 19(2): 193-197 |
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| Authors: | Xu Jinting Liu Weijun Sun Yuwen |
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| Affiliation: | 1. Key Laboratory of Advanced Manufacturing Technology, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016;2. Graduate University of Chinese Academy of Sciences, Beijing 100049;3.Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education Dalian University of Technology, Dalian 116024 |
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| Abstract: | Aiming at the free-form surface matching with no prior information on transformation, an effective and straightforward matching method is presented. The method establishes the corresponding relationships between two free-form surfaces with constraints of angle and distance by means of the surface features of the Gaussian curvature and the mean curvature. And then by using the proposed method calculating the transformation, a list of transformations is constituted. On the basis of these, the optimal transformation is achieved by the minimum distance function. Experimental results demonstrate that the algorithm is steady and effective. |
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| Keywords: | free-form surface matching curvature triangle-constrains minimum distance function |
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