Physically based facial model

We have constructed a dynamic face model, which is based on the anatomical structures of a real face. Accurate head geometry was obtained from Magnetic Resonance Images (MRIs). An image segmentation program was used to convert the volumetric MRI data to a polygonal representation of the head. The most detailed models we have used have contained approximately 35000 vertices and 70000 polygons. We have constructed separate models for the behavior of the skin, muscles and skull. Contracting the modeled muscles produces facial movements.