| A level set based segmentation approach for point-sampled surfaces |
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| 引用本文： | MIAO Yong-wei FENG Jie-qing ZHENG Guo-xian PENG Qun-sheng. A level set based segmentation approach for point-sampled surfaces[J]. 浙江大学学报(A卷英文版), 2007, 8(4): 575-585. DOI: 10.1631/jzus.2007.A0575 |
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| 作者姓名： | MIAO Yong-wei FENG Jie-qing ZHENG Guo-xian PENG Qun-sheng |
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| 作者单位： | [1]State Key Lab. of CAD ＆ CG, Zhejiang University, Hangzhou 310027, China [2]College of Science, Zhejiang University of Technology, Hangzhou 310032, China |
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| 基金项目： | Project supported by the National Basic Research Program （973） of China （No. 2002CB312101）, the National Natural Science Foundation of China （Nos. 60503056, 60373036, 60333010）, and the Education Department of Zhejiang Province, China （No. 20060797） |
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| 摘 要： | Segmenting a complex 3D surface model into some visually meaningful sub-parts is one of the fundamental problems in digital geometry processing. In this paper, a novel segmentation approach of point-sampled surfaces is proposed, which is based on the level set evolution scheme. To segment the model so as to align the patch boundaries with high curvature zones, the driven speed function for the zero level set inside narrow band is defined by the extended curvature field, which approaches zero speed as the propagating front approaches high curvature zone. The effectiveness of the proposed approach is demonstrated by our ex- perimental results. Furthermore, two applications of model segmentation are illustrated, such as piecewise parameterization and local editing for point-sampled geometry.
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| 关 键 词： | 点采样曲面 分割 水平集方法 曲率 |
| 收稿时间： | 2006-09-15 |
| 修稿时间： | 2006-12-07 |
A level set based segmentation approach for point-sampled surfaces |
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| Miao Yong-wei,Feng Jie-qing,Zheng Guo-xian,Peng Qun-sheng. A level set based segmentation approach for point-sampled surfaces[J]. Journal of Zhejiang University Science, 2007, 8(4): 575-585. DOI: 10.1631/jzus.2007.A0575 |
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| Authors: | Miao Yong-wei Feng Jie-qing Zheng Guo-xian Peng Qun-sheng |
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| Affiliation: | (1) State Key Lab. of CAD & CG, Zhejiang University, Hangzhou, 310027, China;(2) College of Science, Zhejiang University of Technology, Hangzhou, 310032, China |
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| Abstract: | Segmenting a complex 3D surface model into some visually meaningful sub-parts is one of the fundamental problems in digital geometry processing. In this paper, a novel segmentation approach of point-sampled surfaces is proposed, which is based on the level set evolution scheme. To segment the model so as to align the patch boundaries with high curvature zones, the driven speed function for the zero level set inside narrow band is defined by the extended curvature field, which approaches zero speed as the propagating front approaches high curvature zone. The effectiveness of the proposed approach is demonstrated by our experimental results. Furthermore, two applications of model segmentation are illustrated, such as piecewise parameterization and local editing for point-sampled geometry. |
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| Keywords: | Point-sampled surfaces Segmentation Level set method Extended curvature field |
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