Title :
A physical model of facial tissue and muscle articulation
Author :
Waters, K. ; Terzopoulos, Demetri
Author_Institution :
Schlumberger Lab. for Comput. Sci., Austin, TX, USA
Abstract :
A physically-based facial tissue model of the epidermis, subcutaneous fatty tissue, and skeletal facial foundation is presented. The tissue model is represented by a lattice of nonlinear spring units with varying viscoelastic properties. Muscle force vectors are constructed from fibres that are rigidly attached to the bone at one end and blended into the dermis layer at the other. A numerical integration technique is used to calculate the dynamic displacement of nodes in the lattice under the influence of internal muscular contractions. An expressive 3-D face, generated on a high-performance graphic workstation, demonstrates the facial tissue and muscle articulation model
Keywords :
biology computing; biomechanics; muscle; physiological models; dermis layer; epidermis; expressive 3-D face; facial tissue; high-performance graphic workstation; internal muscular contractions; muscle articulation; muscle force vectors; nonlinear spring units lattice; numerical integration technique; physical model; skeletal facial foundation; subcutaneous fatty tissue; viscoelastic properties; Bones; Dermis; Elasticity; Epidermis; Graphics; Lattices; Muscles; Springs; Viscosity; Workstations;
Conference_Titel :
Visualization in Biomedical Computing, 1990., Proceedings of the First Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-8186-2039-0
DOI :
10.1109/VBC.1990.109305
