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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (4): 546-553    DOI: 10.1631/jzus.A0820505
Computer-aided Geometric Design     
Mesh sharpening via normal filtering
Jian-guo SHEN, San-yuan ZHANG, Zhi-yang CHEN, Yin ZHANG, Xiu-zi YE
State Key Laboratory of CAD & CG, Zhejiang University, Hangzhou 310027, China; Software College, Zhejiang University of Technology, Hangzhou 310014, China
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Abstract  We present a robust mesh sharpening approach to reconstructing sharp features from blended or chamfered features, even with noise and aliasing errors. Feature regions were first recognized via normal variation according to the user’s input, and then normal filtering was applied to faces of feature regions. Finally, the vertices of the feature region were gradually updated based on new face normals using a least-squares error criterion. Experimental results demonstrate that the method is effective and robust in sharpening meshes.

Key words： Normal filtering      Sharp feature      Mesh sharpening      Blend      Chamfer     
Received: 02 July 2008     
CLC:  TP391.7  
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Jian-guo SHEN
San-yuan ZHANG
Zhi-yang CHEN
Yin ZHANG
Xiu-zi YE
Cite this article:

Jian-guo SHEN, San-yuan ZHANG, Zhi-yang CHEN, Yin ZHANG, Xiu-zi YE. Mesh sharpening via normal filtering. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(4): 546-553.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820505     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I4/546

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