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Waypoints validation strategies in assisted navigation for visually impaired pedestrian

Kammoun, Slim and Macé, Marc and Jouffrais, Christophe Waypoints validation strategies in assisted navigation for visually impaired pedestrian. (2014) In: International Conference on Computers Helping People with Special Needs - ICCHP 2014, 9 July 2014 - 11 July 2014 (Paris, France).

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Official URL: http://dx.doi.org/10.1007/978-3-319-08599-9_15

Abstract

In Electronic Orientation Aids, the guidance process consists in two steps: first, identify the location of a visually impaired user along the expected trajectory, and second, provide her/him with appropriate instructions on directions to follow, and pertinent information about the surroundings. In urban environment, positioning accuracy is not always optimal and tracking the user's progress along the expected itinerary is often challenging. We present three new waypoint-based validation strategies to track the user's location despite low positioning accuracy. These strategies are evaluated within SIMU4NAV, a multimodal virtual environment subserving the design of Electronic Orientation Aids for visually impaired people. Results show that the proposed strategies are more robust to positioning inaccuracies, and hence more efficient to guide users.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01147318
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université de Tunis (TUNISIA)
Laboratory name:
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Deposited By: IRIT IRIT
Deposited On:22 Apr 2015 06:56

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