A model of facial biomechanics for speech production.
Modeling the peripheral speech motor system can advance the understanding of speech motor control and audiovisual speech perception. A 3-D physical model of the human face is presented. The model represents the soft tissue biomechanics with a multilayer deformable mesh. The mesh is controlled by a set of modeled facial muscles which uses a standard Hill-type representation of muscle dynamics. In a test of the model, recorded intramuscular electromyography (EMG) was used to activate the modeled muscles and the kinematics of the mesh was compared with 3-D kinematics recorded with OPTOTRAK. Overall, there was a good match between the recorded data and the model's movements. Animations of the model are provided as MPEG movies.
Lucero
J C
JC
Departamento de Matematica, Universidade de Brasilia, Brazil. lucero@mat.unb.br
Munhall
K G
KG
D001696:Biomechanical Phenomena; D003198:Computer Simulation; D004576:Electromyography; D005145:Face / Q000502:physiology*; D005152:Facial Muscles / Q000502:physiology; D006801:Humans; D008954:Models, Biological; D013060:Speech / Q000502:physiology*