Authors:
Moulay Brahim El Khalil Ghembaza
;
Karim Djouani
and
Yacine Amirat
Affiliation:
LISSI Laboratory, Paris 12 University, France
Keyword(s):
Medical simulators, Physically-based models, Deformable objects, Virtual reality, Continuous collision detection, Haptic interaction.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Modeling, Simulation and Architectures
;
Robotics and Automation
;
Virtual Environment, Virtual and Augmented Reality
Abstract:
This paper presents some issues in the simulation of deformable objects with force feedback. It presents an overview of our approach for the conception of a virtual reality medical simulator. We describe a new base finite element method (Extended Tensor-Mass Model) suitable for soft tissue simulation under real time constraints. Our approach allows fast computation of non-linear and viscoelastic mechanical deformations and forces. As far as real-time interactions are concerned, we present our work on collision detection and haptic interaction. Thus, for contact management, a continuous collision detection method based on cubic spline parametric approximation is proposed. Finally, interactive endovascular simulator is described.