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Open AccessArticle

Layout Transposition for Non-Visual Navigation of Web Pages by Tactile Feedback on Mobile Devices

Groupe de Recherche en Informatique, Automatique, Image et Instrumentation (GREYC), National Graduate School of Engineering and Research Center (ENSICAEN), Université de Caen Normandie (UNICAEN), 14000 Caen, France
Higher Institute for Applied Sciences and Technology, Damascus, Syria
Author to whom correspondence should be addressed.
Micromachines 2020, 11(4), 376;
Received: 8 January 2020 / Revised: 19 March 2020 / Accepted: 25 March 2020 / Published: 3 April 2020
(This article belongs to the Special Issue Tactile Sensing Technology and Systems)
In this paper, we present the results of an empirical study that aims to evaluate the performance of sighted and blind people to discriminate web page structures using vibrotactile feedback. The proposed visuo-tactile substitution system is based on a portable and economical solution that can be used in noisy and public environments. It converts the visual structures of web pages into tactile landscapes that can be explored on any mobile touchscreen device. The light contrasts overflown by the fingers are dynamically captured, sent to a micro-controller, translated into vibrating patterns that vary in intensity, frequency and temperature, and then reproduced by our actuators on the skin at the location defined by the user. The performance of the proposed system is measured in terms of perception of frequency and intensity thresholds and qualitative understanding of the shapes displayed. View Full-Text
Keywords: vibrotactile feedback; blind users; web accessibility vibrotactile feedback; blind users; web accessibility
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Maurel, F.; Dias, G.; Safi, W.; Routoure, J.-M.; Beust, P. Layout Transposition for Non-Visual Navigation of Web Pages by Tactile Feedback on Mobile Devices. Micromachines 2020, 11, 376.

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