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Comparing Interaction Techniques to Help Blind People Explore Maps on Small Tactile Devices

1
IMT Atlantique, LEGO, 29238 Brest, France
2
ENAC, Université Toulouse, 31055 Toulouse, France
3
Inria Bordeaux, 33405 Talence, France
4
CNRS, IRIT, 31062 Toulouse CEDEX 9, France
5
Université de Toulouse 3, 31062 Toulouse CEDEX 9, France
6
CNRS, IPAL, UMI5925, 138632 Singapore, Singapore
*
Author to whom correspondence should be addressed.
Multimodal Technologies Interact. 2019, 3(2), 27; https://doi.org/10.3390/mti3020027
Received: 28 February 2019 / Revised: 27 March 2019 / Accepted: 17 April 2019 / Published: 20 April 2019
(This article belongs to the Special Issue Interactive Assistive Technology)
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Abstract

Exploring geographic maps on touchscreens is a difficult task in the absence of vision as those devices miss tactile cues. Prior research has therefore introduced non-visual interaction techniques designed to allow visually impaired people to explore spatial configurations on tactile devices. In this paper, we present a study in which six blind and six blindfolded sighted participants evaluated three of those interaction techniques compared to a screen reader condition. We observed that techniques providing guidance result in a higher user satisfaction and more efficient exploration. Adding a grid-like structure improved the estimation of distances. None of the interaction techniques improved the reconstruction of the spatial configurations. The results of this study allow improving the design of non-visual interaction techniques that support a better exploration and memorization of maps in the absence of vision. View Full-Text
Keywords: interaction; spatial cognition; visual impairment; touchscreen; accessibility interaction; spatial cognition; visual impairment; touchscreen; accessibility
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MDPI and ACS Style

Simonnet, M.; Brock, A.M.; Serpa, A.; Oriola, B.; Jouffrais, C. Comparing Interaction Techniques to Help Blind People Explore Maps on Small Tactile Devices. Multimodal Technologies Interact. 2019, 3, 27.

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