Étude et mise en œuvre d’un système d’interaction adaptatif pour les applications de réalité virtuelle

Abstract : Over last decades, virtual reality has been widely used in many disciplines. It is able to plunge the user at the heart of an artificial environment created digitally through interaction and immersion paradigms. These paradigms are based on the use of very specific interfaces that help user to interact and perform specific tasks in the virtual environment. Nevertheless, many technical problems are often present and may penalize the quality of that interaction and may break user immersion in the virtual environment. The goal of this thesis is to build a comprehensive procedure to guide the user to calibrate a virtual reality interface and therefore attempt to overcome some technological shortcomings. The originality of the thesis is the use of an approach that combines two areas of research that will combine very rarely, that of data processing and the virtual reality. This approach will provide theoretical and technical framework for the design of a comprehensive calibration procedure to ensure continuous and precise interaction in the virtual environment. To overcome problems described above, the work was conducted on several fronts : data acquisition, processing and validation. The first step is by the use of a new protocol insofar as it is based on virtual reality techniques to collect calibration data. In second step, two calibration methods have been proposed to improve the absolute accuracy of the virtual reality interface. Both methods are universal approximators as well as their ability to estimate the outputs of the involved system from inputs even the model of the system being calibrated remains unknown. In the last step, two virtual reality applications prototypes were developed in order to assess the relevance of our approach.
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  • HAL Id : tel-01545845, version 1

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M'Hamed Frad. Étude et mise en œuvre d’un système d’interaction adaptatif pour les applications de réalité virtuelle. Traitement du signal et de l'image [eess.SP]. Université Paris Saclay; Université d'Evry Val-d'Essonne; Ecole Nationale d’Ingénieurs de Monastir. Tunisia, 2016. Français. ⟨NNT : 2016SACLE053⟩. ⟨tel-01545845⟩

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