Abstract: Modeling of human face is always a challenging task in computer graphics.How to quickly and efficiently restore a realistic three-dimensional human face，is one of the difficulties.This paper presents a fast 3D facial modeling method，the method divides face model into a number of relatively independent functions of movement，then in all functional areas uses the weighted free deformation DFFD for face model deformation.Since the introduction of functional areas，the number of control points greatly decreased，greatly reducing the amount of computation，can well meet the real-time and more authenticity.

Key words: reconstruction, Dirichlet Free-Form Deformation（DFFD） method, texture mapping

摘要： 三维个性化人脸建模一直是计算机图形领域最具挑战性的课题之一。如何快速、高效地还原具有真实感的三维人脸，是其中的难点。提出了一种快速的三维人脸建模方法，该方法将人脸模型划分成若干个运动相对独立的功能区，然后在各功能区内使用加权自由变形DFFD方法对一般人脸模型进行变形。由于功能区的引入，控制点的数量极大地减少，所以极大地降低了计算量，能很好地满足实时性且更具真实性。

关键词: 重建, Dirichlet自由变形方法, 纹理映射