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Stable haptic interaction in a dynamic virtual environment

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3 Author(s)
Davanne, M. ; LIFL, Univ. des Sci. et Technol. de Lille, Villeneuve d''Ascq, France ; Meseure, P. ; Chaillou, C.

To carry out a stable haptic interaction with a dynamic virtual environment containing several moving and/or deformable bodies is challenging. To achieve this, we present a collision detection algorithm based on a segmentation of the space with a regular voxel grid. Interpenetration is quickly estimated using a sphere decomposition of the bodies. Thereafter, we use the voxel grid as a still image of the environment to provide a fast intermediate model that computes the force feedback. It thus enables to simulate the environment at a slow rate (10-100 Hz) while controlling the haptic device at the required frequency (about 1 kHz).

Published in:

Intelligent Robots and Systems, 2002. IEEE/RSJ International Conference on  (Volume:3 )

Date of Conference:

2002