基于平均曲率的布料模拟弯曲模型

doi:10.11772/j.issn.1001-9081.2016.04.1141

计算机应用 ›› 2016, Vol. 36 ›› Issue (4): 1141-1145.DOI: 10.11772/j.issn.1001-9081.2016.04.1141

基于平均曲率的布料模拟弯曲模型

李娜, 丁辉

首都师范大学信息工程学院, 北京 100048

收稿日期:2015-07-29 修回日期:2015-10-12 出版日期:2016-04-10 发布日期:2016-04-08
通讯作者: 丁辉
作者简介:李娜(1990-),女,内蒙古乌兰察布人,硕士研究生,主要研究方向:基于物理的虚拟现实; 丁辉(1977-),女,黑龙江双鸭山人,副教授,博士,CCF会员,主要研究方向:计算机视觉、数字图像处理。

Cloth simulation bending model based on mean curvature

LI Na, DING Hui

College of Information Engineering, Capital Normal University, Beijing 100048, China

Received:2015-07-29 Revised:2015-10-12 Online:2016-04-10 Published:2016-04-08

摘要/Abstract

摘要： 通过对布料特性及内部结构的研究与分析,针对布料的弯曲特性提出一种非线性弯曲近似模型。首先对实际布料的弯曲属性值进行测量,获得布料的弯曲属性参数;然后,在此基础上建立基于平均曲率的弯曲近似模型来表示弯曲力。其次,利用曲面的平均曲率与高斯曲率对布料的三角网格模型进行分区划分。最后,根据子区域平均曲率的变化对弯曲力进行更新。仿真实验中,在不影响布料模拟质量的前提下,与Volino弯曲模型相比在弯腰时关键帧的速度平均提高了2.7%,抬臂时关键帧的速度平均提高了4.1%。实验结果表明,该模型对弯曲力的计算兼顾了简单性和精确性,能充分表现衣服褶皱细节,生成的衣服褶皱较真实。

关键词: 布料模拟, 弯曲模型, 平均曲率, 曲面划分, 三角网格

Abstract: In view of the bending properties of cloth, an approximate model of nonlinear bending was proposed based on the analysis of the fabric characteristics and internal structure of cloth. Firstly, the parameters of bending properties were obtained through the measurement of bending properties of real cloth. Then, the bending model based on mean curvature was put forward to calculate the bending force. Secondly, the surface mean curvature and Gauss curvature were used to segment the triangular mesh model of cloth in the dynamic simulation. Finally, the bending force was updated according to the change of the mean curvature. In the comparison experiments with the Volino's bending model, the key frame speed of the proposed model increased by an average of 2.7% in the process of bending and 4.1% in the process of lifting arms without affecting the quality of cloth simulation. The experimental results show that the proposed model is simple and accurate, and it can fully show the details of clothing folds in a natural way.

Key words: cloth simulation, bending model, mean curvature, surface segmentation, triangular mesh

中图分类号:

TP391.9

李娜, 丁辉. 基于平均曲率的布料模拟弯曲模型[J]. 计算机应用, 2016, 36(4): 1141-1145.

LI Na, DING Hui. Cloth simulation bending model based on mean curvature[J]. Journal of Computer Applications, 2016, 36(4): 1141-1145.

参考文献

[1] ZHOU C, JIN X, WANG C C L, et al. Plausible cloth animation using dynamic bending model[J]. Progress in Natural Science, 2008, 18(7):879-885.
[2] PROVOT X. Deformation constraints in a mass-spring model to describe rigid cloth behavior[C]//Proceedings of the Graphics Interface. Mississauga, Ontario, Canada:Canadian Information Processing Society, 1996:147-154.
[3] BARAFF D, WITKIN A. Large steps in cloth simulation[C]//SIGGRAPH 1998:Proceedings of the 25th Annual Conference on Computer Graphics and Interactive Techniques. New York:ACM, 1998:43-54.
[4] BRIDSON R, MARINO S, FEDKIW R. Simulation of clothing with folds and wrinkles[C]//SCA 2003:Proceedings of the 2003 ACM SIGGRAPH/Eurographics Symposium on Computer Animation. New York:ACM, 2003:28-36.
[5] GRINSPUN E, HIRANI A N, DESBRUN M, et al. Discrete shells[C]//SCA 2003:Proceedings of the 2003 ACM SIGGRAPH/Eurographics Symposium on Computer Animation. New York:ACM, 2003:62-67.
[6] VOLINO P, MAGNENAT-THALMANN N. Simple linear bending stiffness in particle systems[C]//SCA 2006:Proceedings of the 2006 ACM SIGGRAPH/Eurographics Symposium on Computer Animation. New York:ACM, 2006:101-105.
[7] PABST S, KRZYWINSKI S, SCHENK A, et al. Seams and bending in cloth simulation[C]//VRIPHYS 2008:Proceedings of the 5th Workshop on Virtual Reality Interactions and Physical Simulations. London:DBLP Computer Science Bibliography, 2008:31-38.
[8] WONG T H, LEACH G, ZAMBETTA F. Modelling bending behaviour in cloth simulation using hysteresis[J]. Computer Graphics Forum, 2013, 32(8):183-194.
[9] BESL P J, JAIN R C. Segmentation through variable-order surface fitting[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1988, 10(2):167-192.
[10] 李根,潘翔,陈志杨,等.基于泊松形状信号的网格模型部件分割算法[J].浙江大学学报(工学版), 2008,42(12):2074-2079.(LI G, PAN X, CHEN Z Y, et al. Part segmentation algorithm for triangular mesh based on Poisson shape signature[J]. Journal of Zhejiang University (Engineering Science), 2008, 42(12):2074-2079.)
[11] ZHANG Z X, FENG Y X, I R HAGIWARA. A novel segmentation algorithm for complex 3D mesh model in computer vision[C]//Proceedings of the 2010 IEEE 5th International Conference on Bio-inspired Computing:Theories and Applications. Piscataway, NJ:IEEE, 2010:869-873.
[12] 隆强.自由曲面造型方法及五坐标数控加工的研究[D].成都:西南交通大学,2012:27-30.(LONG Q. Study on the free from surface modeling and five-axis NC machining of sculptured surface[D]. Chengdu:Southwest Jiaotong University, 2012:27-30.)
[13] TOPONOGOV V A. Differential geometry of curves and surfaces[J]. Computer Aided Engineering Design, 1976, 2(4):273-275.
[14] 丘成桐,孙理察.微分几何讲义[M].北京:高等教育出版社,2011:253-362.(QIU C T, SUN L C. Lectures on Differential Geometry[M]. Beijing:Higher Education Press, 2011:253-362.)
[15] 贺强,张树生,白晓亮.曲面特征恢复的三角网格模型孔洞修补算法[J].哈尔滨工业大学学报,2011, 43(11):120-124.(HE Q, ZHANG S S, BAI X L. A hole repairing algorithm based on surface feature recovery in triangular mesh model[J]. Journal of Harbin Institute of Technology, 2011, 43(11):120-124.)
[16] 齐宝明.三角网格离散曲率估计和Taubin方法改进[D].大连:大连理工大学,2008:13-23.(QI B M. Curvature estimation and the improvement of Taubin'a method on triangular mesh[D]. Dalian:Dalian University of Technology, 2008:13-23.)

基于平均曲率的布料模拟弯曲模型

Cloth simulation bending model based on mean curvature

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 9

编辑推荐

Metrics

[1]	张亚洲, 卢先领. 基于改进相干增强扩散与纹理能量测度和高斯混合模型的导光板表面缺陷检测方法[J]. 计算机应用, 2020, 40(5): 1545-1552.
[2]	周继来, 周明全, 耿国华, 王小凤. 基于曲度特征的三维模型检索算法[J]. 计算机应用, 2016, 36(7): 1914-1917.
[3]	刘西林王泽文邱淑芳. 基于Priwitt算子的偏微分方程图像去噪模型[J]. 计算机应用, 2012, 32(12): 3385-3388.
[4]	李伟金文标肖仙谦. 基于局部—全局方法的三角网格优化算法[J]. 计算机应用, 2011, 31(04): 1013-1015.
[5]	吴金亮刘利刚. 基于内容的Focus+Context可视化技术[J]. 计算机应用, 2011, 31(01): 6-10.
[6]	张少丽王毅刚陈小雕. 基于空间分解的三角网格模型求交方法[J]. 计算机应用, 2009, 29(10): 2671-2673.
[7]	田建磊刘旭敏关永. 三角网格模型的补洞算法研究[J]. 计算机应用, 2009, 29(08): 2035-2037.
[8]	马淑梅李爱平 . 基于离散数据的自由曲面三角网格实现算法[J]. 计算机应用, 2006, 26(9): 2054-2056.
[9]	毛颖，唐杰，张福炎. 基于NURBS曲面拟合的三角网格曲率计算[J]. 计算机应用, 2005, 25(02): 341-343.