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Título del libro: 2008 23rd International Conference Image And Vision Computing New Zealand, Ivcnz
Título del capítulo: Automatic 3D lip shape segmentation and modelling

Autores UNAM:
ALFONSO GASTELUM STROZZI; JORGE ALBERTO MARQUEZ FLORES;
Autores externos:

Idioma:

Año de publicación:
2008
Palabras clave:

Computational mechanics; Fluid dynamics; Geodesy; Hydrodynamics; Muscle; Three dimensional computer graphics; 3D lips segmentation; Geodesic active contours; Implicit surfaces; Mesh-free method; Smooth particles hydrodynamics; Three dimensional


Resumen:

The correct representation of the 3D lips' movement has been receiving growing interest in different industries. We present a new user-specific 3D mechanical lips model. Static 3D face measurements are obtained from readily available acquisition devices (either a 3D scanner or an active illumination stereo rig). The lip contours are extracted from the face surface using our recently proposed algorithm for segmentation 3D surfaces using active contours. The algorithm allows to obtain different lip surfaces that can be used as input data for the 3D mechanical model. The 3D lips are modeled as a set of particles whose dynamic behaviour is governed by the Smooth Particles Hydrodynamics (SPH). Finally, a force field derived from ellipsoid muscle encircling the lips simulates the muscles controlling the lips motion. Experiments confirmed good potentialities of the proposed approach. © 2008 IEEE.


Entidades citadas de la UNAM: