【摘要】 人体曲面建模与自由变形方法是实现人体数字化的关键技术。给出了提取平面点云数据的方法及平面点云排序算法,介绍了基于平面数据的B样条曲面重构算法,重点叙述了用FFD(Free Form Deform ation)技术实现曲面变形的算法及自由变形方法的特点,最后给出了人体胸部曲面建模与自由变形的实例,实例表明使用FFD进行曲面变形的效果比较自然。更多还原

【Abstract】 Body modeling and FFD(Free Form Deformation)methods are key techniques in the field of body digitalization.This paper presents method of extracting planar points cloud and algorithm of sorting planar points cloud and introduces simply algorithm of reconstructing Bspline surface based on planar points,the emphases of this paper are deforming Bspline surface with FFD and character of FFD.The last of paper gives the examples of breast modeling and FFD.The example indicates that the deformation is natural.更多还原