基于Sqrt3细分算法的人体模型网格平滑
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摘要
论文通过参数化数字人体建模得到低分辨率的三维人体网格模型,但网格曲面不够光滑,不能够满足实际应用的要求。为实现数字人体几何模型的光顺效果,论文提出了一种基于Sqrt3细分算法的三维人体模型网格平滑方法。实验证明,该方法对基于参数化建模方法的、多曲率网格人体模型取得了很好的效果,实现简单高效,特征保持效果好。
In this paper,a 3D human body meshed model with low resolution is obtained by parametric digital human modeling,but the meshed surface is not smooth enough to meet the requirements of practical application. To achieve the smoothing effectof the geometric model of digital human body,this paper proposes a mesh-smoothing method of 3D human model based on Sqrt3 subdivision algorithm. Experiment shows that this method applies to the multicurvature mesh body model based on parametric modeling method and achieves good results. The method is simple,efficient and of well-reserved feature.
In this paper,a 3D human body meshed model with low resolution is obtained by parametric digital human modeling,but the meshed surface is not smooth enough to meet the requirements of practical application. To achieve the smoothing effectof the geometric model of digital human body,this paper proposes a mesh-smoothing method of 3D human model based on Sqrt3 subdivision algorithm. Experiment shows that this method applies to the multicurvature mesh body model based on parametric modeling method and achieves good results. The method is simple,efficient and of well-reserved feature.
引文
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[8]张丽.基于三角网格的细分曲面求交与裁剪技术研究[D].青岛:中国石油大学,2008.ZHANG Li. Research of Intersection and Trimming forSubdivision Surface Based on Triangular Mesh[D]. Qingdao:China University of Petroleum,2008.
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[13]李继,吴丽娟.曲面细分模式的分类研究[J].沈阳师范大学学报(自然科学版),2009:54-58.LI Ji,WU Lijuan. Classification on Surface Subdivision[J]. Shenyang Normal University(Natural Science),2009:54-58.
[14]刘扬.基于B样条的三角网格细分曲面造型技术的研究[D].哈尔滨:哈尔滨理工大学,2011.LIU Yang. Research on Triangular Mesh Subdivision Surface Modeling Technology Based on B Spline[D]. Harbin:Harbin University of Science and Technology,2011.
[15]刘云华.曲面细分以及三种经典细分模式的分析研究[D].西安:长安大学,2011.LIU Yunhua. Surface subdivision and three classic subdivision model analysis[D]. Xi'an:Changan University,2011.
[2]胡新荣,崔树芹,王晖,等.面向虚拟服装试穿的数字人体建模技术[J].纺织导报,2008(7):150-151.HU Xingrong,CUI Shuqing,WANG Hui,et al. Digital Human Body Modeling Technology Virtual Fitting[J]. ChinaTextile Leader,2008(7):150-151.
[3]王晖,胡新荣,汪剑春.基于Loop细分算法的人体模型网格平滑[J].武汉科技学院报,2009,22(2):35-38.WANG Hui,HU Xinrong,WANG Jianchun. Loop Algorithm based Mesh Smoothing for 3D Body Model[J]. Wuhan University of Science and Engineering,2009,22(2):35-38.
[4]张学辉.三角网格细分算法研究[D].青岛:中国石油大学(华东),2006.ZHANG Xuehui. The Research of Subdivision SurfaceBased on Triangle Mesh[D]. Qingdao:China Universityof Petroleum(East China),2006.
[5]程惠阁.三角网格模型的逆向细分研究[D].北京:北京大学,2008.CHENG Huige. Research Triangle Mesh Model of the Reverse Subdivision[D]. Beijing:Peking University,2008.
[6]潘炯波.三角网格的自适应细分研究[J].辽宁师范大学,2011,47(18):186-187.PAN Jiongbo. Adaptive subdivision research for triangularmesh[J]. Liaoning Normal University,2011,47(18):186-187.
[7]江焯林,黎绍发,贾西平,等.典型三角网格细分算法[J].华南理工大学计算机科学与工程学院,2009,35(6):7-10.JIANG Chulin,LI Shaofa,JIA Xiping,et al. Classic Triangular MeshSubdivisionalgorithm[J]. Computer Scienceand Engineering,South China University of Technology,2009,35(6):7-10.
[8]张丽.基于三角网格的细分曲面求交与裁剪技术研究[D].青岛:中国石油大学,2008.ZHANG Li. Research of Intersection and Trimming forSubdivision Surface Based on Triangular Mesh[D]. Qingdao:China University of Petroleum,2008.
[9]L. Kobbelt. subdivision[C]//SIGGRAPH 2000 ConferenceProceedings,2000:103-112.
[10]Denis Zorin,Peter Schroeder,and WimSweldens. Int erpolating subdivision for meshes with arbitrary topology[C]//In SIGGRAPH 96 Conference Proceedings,1996:189-192.
[11] AlexVlachos,JorgPeters,ChasBoyd,JasonL. Mitchell.Curved PN-Triangle[C]//University of Florida,Symposium on Interactive 3d Graphics,2001:159-166.
[12]Nira Dyn,David Levin,and John A. Gregory. Abutterflysubdivision scheme for surface interpolation with tensioncontrol[C]//ACM Transactions on Graphics,1990,9(2):160-169.
[13]李继,吴丽娟.曲面细分模式的分类研究[J].沈阳师范大学学报(自然科学版),2009:54-58.LI Ji,WU Lijuan. Classification on Surface Subdivision[J]. Shenyang Normal University(Natural Science),2009:54-58.
[14]刘扬.基于B样条的三角网格细分曲面造型技术的研究[D].哈尔滨:哈尔滨理工大学,2011.LIU Yang. Research on Triangular Mesh Subdivision Surface Modeling Technology Based on B Spline[D]. Harbin:Harbin University of Science and Technology,2011.
[15]刘云华.曲面细分以及三种经典细分模式的分析研究[D].西安:长安大学,2011.LIU Yunhua. Surface subdivision and three classic subdivision model analysis[D]. Xi'an:Changan University,2011.