一个实用的人脸定制和表情动画编辑系统  

A Practical Editorial System for Facial Customization and Expression Animation

作　　者：梅丽[1] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310027

出　　处：《中国图象图形学报（A辑）》2002年第4期325-331,共7页Journal of Image and Graphics

基　　金：国家自然科学杰出青年基金 (6992 5 2 0 4)

摘　　要：介绍了一个简单而行之有效的特定人脸定制和表情动画的编辑系统 .首先给定一个内嵌肌肉向量的一般人脸三维多边形网格模型并提供特定人脸的正侧面正交图象 ,然后采用 snake技术自动适配人脸特征线 ,变分一般模型定制出三维虚拟人脸 ;接着再用多分辨率样条技术产生无缝的人脸纹理镶嵌图 ,进而生成高度真实感的虚拟特定人脸 .由内嵌肌肉向量的参数化表示 ,通过编辑参数能赋予三维虚拟人脸各种丰富的表情 .由于变分后人脸模型的拓扑不变 ,因此可用基于三角化的图象 metamorphosis实现不同特定人脸间的三维 morph.该系统能在廉价的 PC平台上实现 ,其快速、简单而且具有真实感 ,具有很大的实用价值 .In this paper, we present a simple but effective editorial system for facial customization and expression animation. Provided with frontal and side facial images and a general 3D polygonal facial mesh with muscule vectors, facial feature lines are fitted by snake automatically. variation interpolation are performed on the general model to customize 3D virtual face model. Then, we generate non crack facial texture mosaic with multiresolution spline. And the so generated virtual particular face looks highly realistically. According to its parameterization representation of imbedded muscular vector, the virtual face can make different expressions after we edit relevant parameters. Owning to its topological invariability, we can realize 3D morph between different particular faces based on triangular image metamorphosis. The system can be realized on PC plat easily and quickly and it is very practical.

关 键 词：特征线 SNAKE 变分插值 多分辨率样条 肌肉向量 图象metamorphosis 人脸 表情 动画编辑系统 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]