基于NURBS向量肌肉模型的人脸动画及实现  

NURBS-based vector muscle model for facial animation and implementation

作　　者：吴新娟[1] 徐胜[1] 

机构地区：[1]河海大学计算机与信息工程学院,南京211100

出　　处：《信息技术》2014年第6期154-157,共4页Information Technology

摘　　要：当前,动画及其实现技术受到业界广泛关注,而人脸动画如喜、怒、哀、乐的表达其真实感还不够好。以Waters肌肉模型为基础,提出NURBS弹性肌肉模型,该方法依据解剖学知识,用非均匀有理B样条曲线仿真肌肉。通过改变曲线控制点的权重,可以找到一个动作向量控制肌肉的运动,进而合成人脸的各种表情。控制点数量越多,肌肉就越好控制,那么就可以更加真实地仿真人脸表情。At present, facial animation and its implementation attract widely attention. However, its expressions such as happy, anger are not good enough. This paper presents a novel method, in which the muscles are constructed by the non-uniform rational B-spline curves （NURBS）, which are based on Waters muscle model and anatomical knowledge. By changing the weights of NURBS curves, it can form a motion vector to control facial muscle movements. With different number of control points, muscles are more controllable so that more detailed facial expressions can be simulated.

关 键 词：非均匀有理样B条曲线 线性肌 括约肌 人脸动画 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]