服装CAD中三维人体模型的参数化研究

Parameterizing 3D Human Model in Garment CAD

针对三角网格曲面表示的 3D人体模型缺少语义信息 ,提出一种 3D人体模型的参数化方法 :首先通过三角面片求交的采样策略得到采样点 ,然后使用B样条曲线构造人体轮廓线 ,最后由用户交互得到 3D人体模型的参数化信息 ,建立 3D人体模型的参数化模板 这样 ,在参数化人体模型模板的基础上 ,可以根据用户所输入的特定人体参数信息 ,动态地调整轮廓线和重建人体模型体表曲面 ,快速生成逼真的 3D人体模型 。

Since the 3D human model represented by triangle meshes hardly contains semantic parameters a novel method for parameterizing 3D human body model is presented First of all, sample points are got by intersecting a set of sampling radial lines with triangle faces of the body surface Then the contour curve of human body is constructed by fitting a B Spline curve to the above sample points Users interactively pick out parameter information from the feature points of original body model and create a parameterized template of 3D human body A new customized body model is generated easily by modifying the template's parameters The presented method can be used for customized garment design