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要旨:
In this tutorial we present an overview of the concepts and current
techniques that have been developed to model and animate human faces. We
introduce the research area of facial modeling and animation by its
history and applications. As a necessary prerequisite for facial modeling,
data acquisition is discussed in detail. We describe basic concepts of
facial animation and present different approaches including parametric
models,
performance-, physics-, and image-based methods. State-of-the-art techniques
such as MPEG-4 facial animation parameters, mass-spring networks for skin
models, and face space representations are part of these approaches.
We furthermore discuss texturing of head models and rendering of skin and
hair, addressing problems related to texture synthesis, bump mapping with
graphics hardware, and dynamics of hair. Typical applications for facial
modeling and animation such as speech synchronization, head morphing, and
forensic applications are presented and explained.
