Titre :

Preconditioner-Based Contact Response and Application to Cataract Surgery

Auteur(s) :

Courtecuisse, Hadrien [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Allard, Jérémie [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Duriez, Christian [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Cotin, Stéphane [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]

Éditeur(s) ou directeur(s) scientifique(s) :

G. Fichtinger and A. Martel and T. Peters

Titre de la manifestation scientifique :

MICCAI - 14th International Conference on Medical Image Computing and Computer Assisted Intervention - 2011

Ville :

Toronto

Pays :

Canada

Date de début de la manifestation scientifique :

2011-09-18

Titre de la revue :

Lecture Notes in Computer Science

Éditeur :

Springer

Date de publication :

2011-09

Discipline(s) HAL :

Informatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]

Résumé en anglais : [en]

In this paper we introduce a new method to compute, in real-time, the physical behavior of several colliding soft-tissues in a surgical simulation. The numerical approach is based on finite element modeling and allows for ...
Lire la suite >In this paper we introduce a new method to compute, in real-time, the physical behavior of several colliding soft-tissues in a surgical simulation. The numerical approach is based on finite element modeling and allows for a fast update of a large number of tetrahedral elements. The speed-up is obtained by the use of a specific preconditioner that is updated at low frequency. The preconditioning enables an optimized computation of both large deformations and precise contact response. Moreover, homogeneous and inhomogeneous tissues are simulated with the same accuracy. Finally, we illustrate our method in a simulation of one step in a cataract surgery procedure, which require to handle contacts with non homogeneous objects precisely.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL