Scenario Model-based 3d Facial Animation Driven

With the computer era of three-dimensional technology, computing power has been greatly improved and the vigorous development of network applications, three-dimensional facial animation has become a hot research field of computer graphics. Today, in the film industry, man-machine communication, multimedia, computer games and other areas of 3D face modeling and animation gained more and more widely used.In this thesis, face the diversity of the various components of this feature, combined with a variety of techniques to achieve facial expression: For the eyes, nose, ears and other regional movements, this paper adopts a linear interpolation function simulation of the arc movement, use of sub-differential its motion from the measured coefficients, using radial basis function for processing area for sports; the use of rigid motion simulation of eye and head rotation and with reference to physiology research, using basically the same watch goals simulate the relative motion of the head and eyes; In the mouth muscles for the case of complex movement, in general, the grid deformation based on the introduction of muscle vector model, using the mouth and linear sphincter muscles to restrain the movement of feature points, so that the mouth of the complexity of the simulation exercise have physiological basis.Finally, the paper proposes a standard based on MPEG-4 Facial Expression of scenario-driven animation system, the system is able to use the method suggested above, and can accept text, voice-driven information, real-time to generate a realistic facial expression animation.