Élaborer une approche d'assistance à la navigation à inspiration cognitive pour les personnes souffrant d'une incapacité visuelle majeuret : cas du piéton non voyant

Authors: Yaagoubi, Reda
Advisor: Edwards, GeoffreyBadard, Thierry
Abstract: Blind people encounter many challenges during their daily activities of navigation. In order to develop technological solutions to assist them, it is necessary to elaborate an appropriate research methodology that take into account the specific needs of people suffering from such a disability. This methodology requires multidisciplinary knowledge and the ability to work with teams with widely different backgrounds. First of all, we propose an overview of different approaches of design adopted in rehabilitation and engineering, beginning with the classical engineering approach, then progressing to participatory design, universal design and a novel approach of design that we call ‘cognitive design’. Then, we highlight the potential of this latter approach in providing solutions that meet the expectations and the needs of disabled people. This approach helps to provide blind people with heightened situation awareness during their navigational activities within urban areas. At the beginning, we investigated the nature of the mental representation of space used by blind persons. We then represented this information using image schemata as these capture in a meaningful way the different features that make up the spatial configuration. Next, we elaborated a semantic model of useful geospatial data which will serve to assist the visually impaired in various tasks of navigation and wayfinding. These data must be hierarchically structured in order to guarantee a better communication between the device and blind users. After that, we integrated this semantic model with basic geographic information useful for tracking and navigation activities, using the ISO 19133:2005 data standard developed for Location-based Services. A typical scenario is used to show the contribution and value of adopting the cognitive design approach to develop an assistive tool for blind pedestrians.
Document Type: Thèse de doctorat
Issue Date: 2011
Open Access Date: 17 April 2018
Permalink: http://hdl.handle.net/20.500.11794/22360
Grantor: Université Laval
Collection:Thèses et mémoires

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