全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

3维颅骨表面模型的复杂孔洞修补

DOI: 10.11834/jig.20130913

Keywords: 孔洞修补,孔洞分类,隐式曲面,向内递归,模型匹配

Full-Text   Cite this paper   Add to My Lib

Abstract:

颅骨表面模型的孔洞复杂,很难用目前常用的图形学中某一类算法进行修补。目前基本修补算法(BHRA)可用来修补一般区域孔洞,但对于颅骨上破损较大复杂孔洞和特征区域复杂孔洞还没有较好的修补算法,为此提出一种颅骨模型复杂孔洞修补算法,该算法首先通过复杂孔洞的位置和复杂孔洞包围盒的面积来对该复杂孔洞进行分类,再选择相应的算法进行孔洞修补。针对颅骨上区域较大复杂孔洞,提出一种向内递归修补法(IRS),解决了传统孔洞修补方法修补曲面较为平坦的问题;针对颅骨上的特征区域复杂孔洞,提出了特征模型匹配法(TMA),使用标准模型作为约束并对其进行变形,使修补后的模型更符合人的面部特征。实验结果分析表明,该算法对颅骨上区域较大的复杂孔洞和特征区域孔洞的修补效果令人满意,同时将该修补后的颅骨模型进行颅面复原,颅面复原效果良好。

References

[1]  Greef S D, Willems G. Three-dimensional craniofacial reconstruction in forensic identification[J]. Latest progress and new tendencies. J.Forensic Sci.,2005,50(1): 12-17.
[2]  Liang R H, Pan Z G, Chen C. New algorithm for 3D facial model reconstruction and its application in virtual reality[J]. Journal of Computer Science and Technology, 2004,19(4): 501-509.
[3]  Roscoe L E. Living with STL files[C]//Proceedings of the 6th International Conference on Rapid Prototyping. Dayton, Ohio, USA: University of Dayton, 1995: 45-51.
[4]  Hu S M, Yang Y L, Lai Y K. Research process of digital geometry process[J]. Chinese Journal of Computers, 2009, 32(8): 1451-1469.[胡事民,杨永亮,来煜坤.数字几何处理研究进展[J].计算机学报,2009,32(8):1451-1479.]
[5]  Davis J, Marschner S R, Garr M, Levoy M. Filling holes in complex surfaces using volumetric diffusion[C]//The First International Symposium on 3D Data. Padua, Italy:IEEE,2002: 428-438.
[6]  Liepa P. Filling holes in meshes[C]//The 2003 Eurographics/ACM SIGGRAPH Symposium on Geometry Processing. Aachen, Germany:ACM, 2003: 200-205.
[7]  Zhang J,Yue W N,Wang N. et al. Anisotropic hole filling algorithm for triangle mesh models[J]. Journal of Computer Aid Design & Computer Graphics,2007,19(7):892-897.[张洁,岳玮宁,王楠,等.三角网格模型的各向异性孔洞修补算法[J].计算机辅助设计与图形学学报,2007,19(7):892-897.]
[8]  Zhao W, Gao S M, Lin H W. A robust hole-filling algorithm for triangular mesh[J]. The Visual Computer, 2007, 23(12): 987-997.
[9]  Botsch M, Pauly M, Kobbelt L, et al. Geometric modeling based on polygonal meshes[C]//Proceedings of SIGGRAPH. New York, USA: ACM, 2007: 35-50.
[10]  Wei Z L,Zhong Y X,Yuan C L. et al. Research on smooth filling algorithm of large holes in triangular mesh model[J]. Journal of Applied Science,2008,19(8):949-954.[韦争亮,钟约先,袁朝龙,等.三角网格大面积孔洞光顺修补算法的研究[J].中国机械工程,2008,19(8):949-954.]
[11]  Wang X C, Cao J J, Liu X P, et al. Advancing front method in triangular meshes hole-filling application[J]. Journal of Computer Aid Design & Computer Graphics,2011,23(6): 1048-1054.[王小超,曹俊杰,刘秀萍,等.波前法在三角网格孔洞修补中的应用[J]. 计算机辅助设计与图形学学报, 2011, 23(6):1048-1054.
[12]  Brunton A, Wuhrer S, Shu C, et al. Filling holes in triangular meshes by curve unfolding[C]//Proceedings of IEEE International Conference on Shape Modeling and Application. Beijing: Institute of Electrical and Electronics Engineers Press, 2009:66-72.
[13]  Yu Y Z, Zhou K, Xu D, et al. Mesh editing with poisson-based gradient field manipulation[C]//Proceedings of ACM SIGGRAPH, Los Angeles: ACM, 2004: 644-651.
[14]  Jin X G, Sun H Q, Peng Q S. Subdivision interpolating implicit surfaces[J]. Computers & Graphics, 2003,27(5): 763-772.
[15]  Du J,Zhang L Y,Wang H T. et al. Hole repairing in triangular meshes based on radial basis function[J]. Journal of Computer Aid Design & Computer Graphics,2005,17(9):1976-1982.[杜佶,张丽艳,王宏涛,等.基于径向基函数的三角网格曲面孔洞修补算法[J].计算机辅助设计与图形学学报,2005,17(9):1976-1982.]
[16]  Ken M, Will S, Bill L. The Visualization ToolKit[EB/OL].(2008-07-11)[2008-08-05]. http://www.vtk.org/index.php.
[17]  Kolluri R. Provably good moving least squares[C]//Proceedings of SIAM SDA. Columbia British: SIAM, 2005: 1008-1017.
[18]  Lipman Y, CohenOr D, Levin D. Data-dependent MLS for faithful surface approximation[C]//Proceedings of SIGGRAPH. Barcelona, Spain:ACM, 2007: 59-67.
[19]  Alexa M. Mesh editing based on discrete Laplace and Poisson models[C]//Proceedings of ACM SIGGRAPH 2006 Courses. Boston, Massachusetts:ACM, 2006:51-59.
[20]  Li W S, Xu S H, Zhao G, et al. Feature-preserving smoothing algorithm for polygons and meshes[C]//Proceedings of SIGGRAPH. Singapore:ACM, 2004: 246-252.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133