| 反求工程中点云数据的二次曲面特征提取技术 |
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| 引用本文： | 单东日,柯映林.反求工程中点云数据的二次曲面特征提取技术[J].计算机辅助设计与图形学学报,2003,15(12):1497-1501. |
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| 作者姓名： | 单东日 柯映林 |
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| 作者单位： | 浙江大学机械与能源工程学院,杭州,310027 |
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| 基金项目： | 国家“八六三”高技术研究发展计划 (863 5 11 942 0 18)，教育部优秀骨干教师基金，教育部博士点专项基金(980 3 3 5 3 2 )资助 |
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| 摘 要： | 基于点的连通性及同一特征面测量点几何特征相似性，在特征曲面拟合误差控制下，实现了散乱数据二次曲面的区域分割．工程应用实例表明：文中方法稳定可靠，可显著提高反求CAD建模效率与重建模型精度。
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| 关 键 词： | 反求工程 点云数据 二次曲面 特征提取 曲面拟合 CAD CAM |
| 修稿时间： | 2002年11月19 |
Quadric Feature Extraction from Points Cloud in Reverse Engineering |
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| Shan Dongri,Ke Yinglin.Quadric Feature Extraction from Points Cloud in Reverse Engineering[J].Journal of Computer-Aided Design & Computer Graphics,2003,15(12):1497-1501. |
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| Authors: | Shan Dongri Ke Yinglin |
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| Abstract: | A robust hybrid segmentation method for quadric feature extraction is proposed It is composed of three steps First, points are segmented under the controlled error of deviation from a certain surface type Second, the points with similar geometric feature are extracted from the points segmented in the first step Finally, quadric feature extraction is implemented using a connectivity criterion for point sets Experimental results show that the precision of reconstructed model and efficiency of remodeling are improved remarkably |
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| Keywords: | reverse engineering region segmentation feature extraction quadric surface |
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