Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)

Florence, Italy
December 13-15, 2007

A Biomechanical Model of the Face Including Muscles for the Prediction of Deformations During Speech Production

Julie Groleau (1), Matthieu Chabanas (1), Christophe Marécaux (3), Natacha Payrard (2), Brice Segaud (2), Michel Rochette (2), Pascal Perrier (1), Yohan Payan (3)

(1) ICP-GIPSA Lab, UMR CNRS 5216, INP Grenoble, France
(2) ANSYS France, Villeurbanne, France
(3) TIMC-IMAG, UMR CNRS 5525, Université Joseph Fourier, Grenoble, France

A 3D biomechanical finite element model of the face is presented. Muscles are represented by piecewise uniaxial tension cable elements linking the insertion points. Such insertion points are specific entities differing from nodes of the finite element mesh, which makes possible to change either the mesh or the muscle implementation totally independently of each other. Lip/teeth and upper lip/lower lip contacts are also modeled. Simulations of smiling and of an Orbicularis Oris activation are presented and interpreted. The importance of a proper account of contacts and of an accurate anatomical description is shown.
Index Terms. Face models, Muscle modeling, Lip/teeth interaction

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Groleau, Julie / Chabanas, Matthieu / Marécaux, Christophe / Payrard, Natacha / Segaud, Brice / Rochette, Michel / Perrier, Pascal / Payan, Yohan (2007): "A biomechanical model of the face including muscles for the prediction of deformations during speech production", In MAVEBA-2007, 173-176.