Title: Semantics-based representation of virtual environments

Authors: Mario Gutierrez, Frederic Vexo, Daniel Thalmann

Addresses: Virtual Reality Lab (VRlab), Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne CH-1015, Switzerland. ' Virtual Reality Lab (VRlab), Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne CH-1015, Switzerland. ' Virtual Reality Lab (VRlab), Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne CH-1015, Switzerland

Abstract: In this paper, we present an object representation based on the semantics and functionality of interactive digital items - virtual objects - within a Virtual Environment (VE). We consider every object participating in a VE application not only as a 3D shape, but as a dynamic entity with multiple visual representations and functionalities. This allows for dynamically scaling and adapting the object|s geometry and functions to different scenarios. Some test applications are described to demonstrate the benefits of the semantics-based representation of interactive virtual environments, including autonomous characters and collaborative environments.

Keywords: digital content description; digital content adaptation; interactive digital items; production; semantic modelling; virtual environments; object representation; virtual objects; autonomous characters; collaborative environments; semantic representation; animation.

DOI: 10.1504/IJCAT.2005.006484

International Journal of Computer Applications in Technology, 2005 Vol.23 No.2/3/4, pp.229 - 238

Published online: 13 Mar 2005 *

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