A Survey of Computer Facial Animation Techniques

This paper describes and surveys the techniques used in facial animation. The techniques are discussed from two aspects: the techniques of facial modeling and the techniques of data acquirement of facial animation. The techniques of facial modeling are classified into four categories: shape interpolations, parameterizations, muscle-based modeling and pseudo-muscle-based models. And the techniques of animation data acquirement are classified into three categories: speech-driven techniques, image-based techniques and data-capture techniques. The generation, the main ideas, the historical use, and the strength and weakness of each technique are described in detail.