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Humanoïdes virtuels, réaction et cognition : une architecture pour leur autonomie.

Fabrice Lamarche 1 
1 SIAMES - Computer generated images, animation, modeling and simulation
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, INRIA Rennes
Abstract : Living beings are characterized by their relationship with their environment. They can perceive, act and decide. Behavioral animation uses this architecture to model autonomous entities, similar to living beings, populating virtual environments. In this thesis, we propose an architecture to describe virtual humans behavior. First, we study the relationship between virtual humans and their environment through the navigation process. We propose a spatial subdivision algorithm extracting topological properties from the geometry of the environment. This information is used to create a hierarchical path-planning algorithm. Then, a navigation algorithm, inspired by studies on pedestrian behavior, is proposed to simulate in real time crowds composed of several hundreds of autonomous entities. Secondly, we study reactive and cognitive behaviors. We propose a reactive model, which is able to handle automatically the synchronization and adaptation of several parallel behaviors. The cognitive model is therefore able to select actions to achieve a given goal. This model is based on an object oriented language used to describe the interactions offered by the environment. Different applications have been realized to validate the models in the field of crowd simulation, interactive fiction and virtual cinematography.
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Submitted on : Saturday, November 14, 2009 - 12:13:04 PM
Last modification on : Friday, February 4, 2022 - 3:25:18 AM
Long-term archiving on: : Tuesday, October 16, 2012 - 2:05:14 PM


  • HAL Id : tel-00432175, version 1


Fabrice Lamarche. Humanoïdes virtuels, réaction et cognition : une architecture pour leur autonomie.. Modélisation et simulation. Université Rennes 1, 2003. Français. ⟨tel-00432175⟩



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