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Now showing items 11-19 of 19
Efficient Updates of Bounding Sphere Hierarchies for Geometrically Deformable Models
(The Eurographics Association, 2006)
We present a new approach for efficient collision handling of meshless objects undergoing geometric deformation. The presented technique is based on bounding sphere hierarchies. We show that information of the geometric ...
Fast Dynamic Simulation of Multi-Body Systems Using Impulses
(The Eurographics Association, 2006)
A dynamic simulation method for multi-body systems is presented in this paper. The special feature of this method is that it satisfies all given constraints by computing impulses. In each simulation step the joint states ...
Collision Detection between a Complex Solid and a Particle Cloud assisted by Programmable GPU
(The Eurographics Association, 2006)
In this work the problem of collision detection (CD) between a Complex Solid and a Particle cloud with autonomous movement is studied. In order to do this, some algorithms and data have been adapted to suit new extensions ...
Stable Collision Response Method in Complex Interactions
(The Eurographics Association, 2006)
Haptic technology is quite recent and therefore in many cases it is difficult to simulate real contacts or interactions with a high sensation of realism. Collision response methods that calculate the force-feedback tend ...
Virtual reality training system for portal selection in shoulder arthroscopy
(The Eurographics Association, 2006)
In arthroscopy, the first step is to choose the correct position and orientation of the entry points (portals) by palpating the osseous references. We have built a virtual reality training system for placement of the ...
The use of Tetrahedra to Detect Collisions
(The Eurographics Association, 2006)
We present an algorithm for collision detection by filling the free space between the objects involved. We compute the closest regions of a pair of objects, and update them during the running simulation. The algorithm is ...
A study of the Manipulability of the PHANToM OMNI Haptic Interface
(The Eurographics Association, 2006)
When a haptic interface is going to be used as a part of a computational system a design criteria consist of maximizing the coincidence between the application 3D space and the physical volume where the haptic device ...
Animating Shapes at Arbitrary Resolution with Non-Uniform Stiffness
(The Eurographics Association, 2006)
We present a new method for physically animating deformable shapes using finite element models (FEM). Contrary to commonly used methods based on tetrahedra, our finite elements are the bounding voxels of a given shape at ...
Real Time Simulation of Phaco-emulsification for Cataract Surgery Training
(The Eurographics Association, 2006)
We present a real-time simulation of the phaco-emulsification task in a virtual reality training system for cataract surgery. Phaco-emulsification consists in breaking in small fragments and completely removing the eye ...