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HAPTICS
2007
IEEE

Braille Display by Lateral Skin Deformation with the STReSS2 Tactile Transducer

13 years 10 months ago
Braille Display by Lateral Skin Deformation with the STReSS2 Tactile Transducer
Earlier work with a 1-D tactile transducer demonstrated that lateral skin deformation is sufficient to produce sensations similar to those felt when brushing a finger against a line of Braille dots. Here, we extend this work to the display of complete 6-dot Braille characters using a general purpose 2-D tactile transducer called STReSS2 . The legibility of the produced Braille was evaluated by asking seven expert Braille readers to identify meaningless 5-letter strings as well as familiar words. Results indicate that reading was difficult but possible for most individuals. The superposition of texture to the sensation of a dot improved performance. The results contain much information to guide the design of a specialized Braille display operating by lateral skin deformation. They also suggest that rendering for contrast rather than realism may facilitate Braille reading when using a weak tactile transducer.
Vincent Lévesque, Jérôme Pasqu
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where HAPTICS
Authors Vincent Lévesque, Jérôme Pasquero, Vincent Hayward
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