A Facial Expression Animation System

Human face is the window of communication in real world, and virtual face is of the same importance in virtual world. Therefore, the construction and animation of realistic human facial models is always attractive to researchers in computer graphics, and as an identifiable area of the latter in the past 30 years, facial modeling and animation has been devoted to significant efforts with many dozens of research papers published. Its applications include such diverse fields as character animation for films and advertising, computer games, virtual reality, teleconferencing, user-interface surgical facial planning, and criminal discrimination. This research field more and more people's concern.In view of making the face model:, This program uses a hysically-based 3D facial model based on anatomical knowledge which provides high fidelity for facial expression animation while optimizing the computation. This facial model has a multilayer biomechanical structure, incorporating a physically-based approximation to facial skin tissue, a set of anatomically-motivated facial muscle actuators, and underlying skull structure, which Constitute a complete 3D facial model.In regard to facial animation: reference to the model of Water's muscle model and some modifications, 26 muscle vectors are presented to simulate facial muscles' motion by nonlinear interpolation. Meanwhile, some other parameters, for example, open of jaw and eyelids, could simply be substituted by rotation transform. Through these models natural looking animations have been able to generatedThe system can be used to produce specific facial animation, to achieve a variety of facial expressions and interactions can be seen to be a way to adjust parameters of deformation in order to achieve customer satisfaction.The work and achievement in this thesis is just fundamental and pilot study, while it can be exploited in many applications such as natural and intelligent human-machine interfaces, virtual collaboration work, virtual learning and teaching, and so on.