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Interaction en Environnements Immersifs et Retours d’Effort Passifs

Alexis Paljic 1, 2
2 I3D - 3 dimensional interaction
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
Abstract : Force feedback provides users with haptic information, relative to the sense of touch. This work focuses on passive force feedback -which doesn’t add mechanical energy to the user- and distance of manipulation in immersive displays. We propose and evaluate passive force feed- back techniques whose objective is to cumulate two advantages : 1) make no use of motors or actuators, 2) adapt to changes in the virtual environment. The proposed techniques are based on an interaction between visual and tactile senses, in 2D and immersive environments. On a 2D desktop system, we show the suitability of pseudo-haptic feedback -proposed by Lecuyer et al- for simulating torque feedback. We then propose a passive system that returns non-grounded forces. The system is evaluated in two situations : the simulation of friction and in a two-user cooperative task. In an immersive environment, we propose a new system for simulating grounded forces. It is evaluated and installed on a Workbench virtual reality system. Finally we study the effect of distance of manipulation in a responsive workbench ; we define it as the distance between the hand of the user and the virtual object being manipulated.
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Alexis Paljic. Interaction en Environnements Immersifs et Retours d’Effort Passifs. Synthèse d'image et réalité virtuelle [cs.GR]. Université Pierre et Marie Curie (Paris VI), 2004. Français. ⟨tel-01479203⟩

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