虚拟人面部行为的合成

虚拟人是虚拟现实环境中很重要的一部分，对于虚拟人行为的研究除了应从宏观上考虑虚拟人的群体行为属性之外，以个体行为属性的研究也非常重要。个体行为包括自然行为和意识行为。自然行为主要是和脸部、头部以及四肢运动有关的行为。而意识行为则包括与语言和心理活动相关联的表情、发声以及对应的唇动手势动作等。本文旨在研究与意识行为有关的虚拟人面部图像合成技术，讨论了标准人脸图像的参数合成方法，给出了特定人脸图像与标

SYNTHESIS OF FACIAL BEHAVIOR FOR VIRTUAL HUMAN

The virtual human is one of the most important parts in the virtual environment, where the research on individual behavior is author's essential target besides the collective behavior in macro-scope which has been studied by many researchers recently. The individual behaviors of human being include the natural action such as the movement of head, hand, arm and leg, and the conscious action such as the emotion, speech and the related lip movement, hand gesture etc. This paper focuses 0n the research of related technologies for facial image synthesis of conscious action such as synthesizing the lip motion and face image with emotion. The following issues are discussed in this paper, the synthesis method for the parameter-based normal face, the method of mapping the normal facial image to a special face, and the synthesis of related facial emotion image and lip motion image.