Title: | Fairing of polygon meshes via Bayesian discriminant analysis |
Authors: | Chen, Chun-Yen Cheng, Kuo-Young Liao, Hong-Yuan Mark |
Citation: | Journal of WSCG. 2004, vol. 12, no. 1-3, p. 175-182. |
Issue Date: | 2004 |
Publisher: | UNION Agency |
Document type: | článek article |
URI: | http://wscg.zcu.cz/wscg2004/Papers_2004_Full/F71.pdf http://hdl.handle.net/11025/1719 |
ISSN: | 1213-6972 |
Keywords: | diskriminační analýza;bayesiánská klasifikace;3D objektové modely;polygonové mřížky |
Keywords in different language: | discriminant analysis;bayesian classification;3D object models;polygon meshes |
Abstract: | Design of an anisotropic diffusion-based filter that performs Bayesian classification for automatic selection of a proper weight for fairing polygon meshes is proposed. The data analysis based on Bayesian classification is adopted to determine the decision boundary for separating potential edge and non-edge vertices in the curvature space. The adaptive diffusion filter is governed by a double-degenerate anisotropic equation that determines how each polygon vertex is moved along its normal direction in the curvature space iteratively until a steady state is reached. The determination of how much a polygon vertex should be moved depends on whether it is a potential edge or a non-edge vertex. At each fairing step, conceptually, a bi-directional curvature map whose boundary line while couched by the weight value can be plotted to understand the type of a vertex. Experimental results show that the proposed diffusion-based approach could effectively smooth out noises while retaining useful data to a very good degree. |
Rights: | © UNION Agency |
Appears in Collections: | Volume 12, number 1-3 (2004) |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1719
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.