681%20-%20Introduction%20to%20Computer%20Graphics

1
Facial Animation
Modeling the face
Facial Action Coding System (FACS)
Parametric models
Muscle-based models
2
FACS
Ekman and Friesen
Action Units - individual action of facial muscles
46 AUs - form all expressions in combination
Descriptive, not intended for animation
Parameterized implementations
3
Modeling the Face
Texture mapped faces
Stylized models
Polygonal models
Surface patches
Implicit surfaces
4
Animating the Face
Muscle-skin geometric arrangement
Skin models
Muscle models