• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2015, Vol. 37 ›› Issue (03): 599-604.

• 论文 • 上一篇    下一篇

基于局部约束的服装变形方法研究

张平1,侯进1,2,吕佳佳1   

  1. (1.西南交通大学信息科学与技术学院,四川 成都 610031;
    2.南京大学计算机软件新技术国家重点实验室,江苏 南京 210093)
  • 收稿日期:2014-03-05 修回日期:2014-03-31 出版日期:2015-03-25 发布日期:2015-03-25
  • 基金资助:

    国家自然科学基金资助项目(61371165);浙江大学CAD&CG国家重点实验室开放课题资助项目(A1416);四川省动漫研究中心2012年度科研资助项目(DM201204);计算机软件新技术国家重点实验室开放课题基金资助项目(KFKT2013B22)

Garment deformation based on local constraints  

ZHANG Ping1,HOU Jin1,2,L Jiajia1   

  1. (1.School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031;
    2.State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing 210093,China)
  • Received:2014-03-05 Revised:2014-03-31 Online:2015-03-25 Published:2015-03-25

摘要:

针对目前虚拟服装变形方法不能有效地解决局部不同程度变形的问题,提出一种基于局部约束的服装变形方法。首先,根据人体特征参数自定义构建虚拟人服装模型,并在此过程中对质点弹簧模型和欧拉算法进行了改进;其次,对服装质点施加约束力,在质点原始的位置上添加改进的基函数,并引入约束权重来控制基函数的变化,从而求得质点的正确位置,实现局部不同程度的变形。实验结果表明,该局部约束方法取得了较好的变形效果。

关键词: 服装变形, 局部约束, 基函数, 约束权重

Abstract:

As the current virtual garment deformation methods cannot solve the local deformation of different degrees effectively, a method for garment deformation based on local constraints is proposed. Firstly, the garment model based on human characteristic parameters is established, and the massspring model and Euler algorithm are improved. Secondly, after exerting constrained force, an improved basis function is added to the original position of the particles, and the new positions are computed through the improved basis function combined with impact factors, thus  the varying degrees of deformation are complemented. The experimental results indicate that the method has good performance.

Key words: garment deformation;local constraints;basis function;constrainted weight