摘要
阐述了在虚拟现实环境下,应用OpenGL技术,如何对人脸建立物理模及其动画合成,并采用纹理粘贴,动画控制的手段,来仿真真实人脸的表情。文章中将人脸表面分成8个脸部构件,采用NURBS曲面和三角形面片相结合的方式进行建模仿真,当脸部表情变化时,脸部构件也发生相应的位移的弹性形变。由于表情变化是基于本文构建的物理模型,因此,合成效率高。实验结果表明,基于OpenGL技术应用该算法对人脸建模及其动画合成,其仿真效果真实,自然。能够满足实际多媒体系统对友好人机交互的要求。
Explain how to construct physical modal, compose and control the animat ion to simulate the real facial expression with the technique of OpenGL under th e environment of virtual reality. The paper put forward that the whole face is s ubdivided into eight sections according to the human facial organ in order to si mplify computation and construct them by an algorithms way of curved surface NUR BS and triangle. When the face expression changes, springiness metamorphosing ch ange of the corresponding displacement takes place according to the algorithm in every face member. The model controls the expression animation, so it is extrem ely efficiently making animations of the human facial expression. Experiment in dicates what this method turn into animation of face expression realistic, natur ally. It can meet the systematic requisition on friendly human-computer interact ion of the real multimedia.
出处
《微计算机信息》
2004年第5期100-102,共3页
Control & Automation
