A biomechanical model of the face including muscles for the prediction of deformations during speech production

Julie Groleau (1, 2) , Matthieu Chabanas (2) , Christophe Marecaux (1) , Natacha Payrard (3) , Brice Segaud (3) , Michel Rochette (3) , Pascal Perrier (2) , Yohan Payan (4)

1 TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
2 GIPSA-AABC - GIPSA - Acoustique, Aéroacoustique, Biomécanique et Contrôle
3 ANSYS France
4 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur

A 3D biomechanical finite element model of the face is presented. Muscles are represented by piece-wise 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

Keywords: Face models; Muscle modeling; Lip/teeth interaction

Domains: Biomechanics [physics.med-ph]; Biomechanics [physics.med-ph]; Bioengineering

Julie Groleau, Matthieu Chabanas, Christophe Marecaux, Natacha Payrard, Brice Segaud, et al.. A biomechanical model of the face including muscles for the prediction of deformations during speech production. MAVEBA 2007 - 5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications, 2007, Florence, Italy. pp.173-176. ⟨hal-00267458⟩