[1]杨璞 易法令 刘王飞 杨远发.使用Dirichlet自由变形算法实现三维人脸及其变形[J].计算机技术与发展,2006,(11):131-133.
　YANG Pu,YI Fa-ling,LIU Wang-fei,et al.Using Dirichlet Free- Form Deformations to Realize Three Dimensional Person Face and Its Distortion[J].,2006,(11):131-133.
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使用Dirichlet自由变形算法实现三维人脸及其变形()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2006年11期
页码:
131-133
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
Using Dirichlet Free- Form Deformations to Realize Three Dimensional Person Face and Its Distortion
文章编号:
1673-629X（2006）11-0131-03
作者:
杨璞 易法令 刘王飞 杨远发
长江大学计算机科学学院
Author(s):
YANG Pu; YI Fa-ling;  LIU Wang-fei;  YANG Yuan-fa
College of Computer Science, Yangtze Uni versity
关键词:
MPEG-4; Dirichlet自由变形; Sibson局部坐标
Keywords:
MPEG - 4 ;  Diriehlet free - form deformations;  Sibson local conrdinate
分类号:
TP391.41
文献标志码:
A
摘要:
人脸是人类相互交流的重要渠道，是人类的喜、怒、哀、乐等复杂表情和语言的载体。因此、具有真实感的三维人脆模型的构造和变形是计算机图形学领域中一个研究热点。如何在三维人脸模型上产生具有真实感的人脸表情和动作．是其中的一个难点。文中介绍了一种基于Delaunay和nfichlev／Voronoi图的Dinchlet自由变形算法（Diridet Free—Form Dcformations，简称DFFD）解决这一问题。文中详细介绍了DFFD技术，并根据MPEG-4的脸部定义参数，应用DFFD对一般人脸进行变形。同时提出了在进行人脸变形时利用脸部定义参数FDP与脸部动画参数FAP分层次控制的方法，这种两级控制点控制的设置，使三维人脸模型产生光滑变形．由此可将人脸各种表情平滑准确地展现出来
Abstract:
The human face is the important channel which the humanity exchanges mutually ,It is the eomplex expression and the language carrier of humanity happiness,the anger, the sorrow, and so on. Therefore, construction and animation of realistic human facial modcls is on. imporant research field in the computer graphics. How to produce facial expression of person with sense of reality and inure,nero on threv -dimenskmal facial models of people, it is a difficult point of one of them. So introduced one kind of algorirhm hased on Debunay and Diriehlet/Voronoi diagrams that is Diriehlet free form deformations algorithm （DFFD） solve this problem, Introdueed DFFD teehnology in the article in detail, according to MPEG - 4＇s face definition parameters, emploied DFFD carry on to common people defomtations. Put forward while carrying on the faces of people out of shape utilizing face definition parameter FDP and facial animation parameter method that FAP control by different level at the same time. The establishment controlled in this kind of comtrol point of two grades, make thrcedimensional facial models of people have the smooth deformations, therefore it can show various expressions of faces of people smoothly and accurately

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备注/Memo

备注/Memo:
湖北省教育厅重点科研基金资助项目（2002A04007）杨璞（1982-），女，湖北荆州人，硕士研究生，研究方向为计算机图形学；易法令，副教授。博士，主要从事并行处理、网络存储、图像处理方面的研究
更新日期/Last Update: 1900-01-01