基于几何特征的三维模型变形与编辑*

在三维计算的基础上针对三维颅面模型，提出了一种基于几何特征的三维模型变形与编辑算法。该算法采用迭代过程，即每进行一次变形便可以重新计算调整后的颅面几何特征值，如果满足需要则退出编辑并保存模型；否则继续变形，直到得到满意的三维模型为止。在局部变形中，为了弥补自由变形技术在变形控制和用户交互方面的不足，对点约束局部变形算法进行了改进。实验证明，该算法实现简单，且具有良好的交互性，变形效果良好。

3D model deformation and editing based on geometric feature

This paper presented a deformation and edition algorithm based on 3D calculation for 3D craniofacial model.The algorithm iteratively calculated feature geometric parameters of face after each deform. When requirement was fitted,it broke and stored model; or else the algorithm kept going on until model deforms to satisfying result.In order to improve the technique of free-form deformation in flexibility of user interaction and modification,improved the algorithm of point constrained deformation. Experiments ...