Control Parameterization for Facial Animation

The control mechanisms currently used in facial animation are reviewed. It is argued that all currently used or anticipated facial animation control schemes should be viewed as parameterizations. The development of facial animation should be viewed as two independent activities; the development of “universal” control parameterizations and interfaces, and the development of optimal techniques to implement facial animation based on these parameterizations. The development of complete low level parameterizations enables the development of higher levels of control abstraction. Several possible directions for facial animation research are discussed.