Title :

Preconditioner-Based Contact Response and Application to Cataract Surgery

Author(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]

Scientific editor(s) :

G. Fichtinger and A. Martel and T. Peters

Conference title :

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

City :

Toronto

Country :

Canada

Start date of the conference :

2011-09-18

Journal title :

Lecture Notes in Computer Science

Publisher :

Springer

Publication date :

2011-09

HAL domain(s) :

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

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

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

Source :

Harvested from HAL