具有真实感的三维虚拟特定人脸生成方法

三维人脸的计算机生成目前是一个具有挑战性的课题。如何在人脸复杂的、不规则的表面上建模以及如何反映出特定人脸间的个体差异是现真实人脸模拟的两大主要困难所在。本文针对后者，提出了一种新的三维特定人脸生成方法，该方法基于人脸模型变形技术，允许模拟者在交互方式下将一般人脸几何模型和豫先提供的特定人脸多方面图像之间进形特征校准，进而得到特定人脸三维模型，该模型将精确地反映特定人脸的诸特征，同时，这种变形技术

GENERATION OF REALISTIC 3-D SPECIFIC HUMAN FACE

Much progress has been made in the field of computer animation, but animating the human face has still remained a major challenge.The two chief difficulties of implementing realistic human face animation are:how to build up a model over the complex and irregular surface of human face and how to reflect the differences between specific human faces.This paper focuses on the latter problem,a new human face generation method using a three dimensional deformation technique is presented which allows interactive alignment of features in the general geometric face model with the features of the multi direction pictures of the specific human face which are pre provided by the animator.The deformation result is a 3 D face model of the specific human face,it precisely reflects the correspondence features of the specific human face.This deformation technique also provides an avaliable approach to obtain models of facial expression.To enhance the realism,this paper employs a new multi direction texture mapping technique which gets photometric information from pictures of multi direction to diminish the texture distortion.