ABSTRACT
The detailed anatomy of the head and face is a complex assembly of bones, cartilage, muscle, nerves, blood vessels, glands, fatty tissue, connective tissue, skin, and hair, as described in Chapter 3. To date, facial animation, based on this level of anatomical detail, is hard. However, it is possible to reduce the complexity of the anatomy and mechanical properties to construct a simple animated model of the face. These models manipulate facial expression based on the physical characteristics of facial muscle and skin.
