Development of Prop-Tactile Display to Convey 2-D Information and Evaluation of Effect -Affection of Presentation Conditions on Powered Mechanical Leading Method for Spatial Position Cognition-

Tadahiro SAKAI  Takuya HANDA  Toshihiro SHIMIZU  

D - Abstracts of IEICE TRANSACTIONS on Information and Systems (Japanese Edition)   Vol.J101-D   No.3   pp.628-639
Publication Date: 2018/03/01
Online ISSN: 1881-0225
Type of Manuscript: PAPER
visually impaired people,  tactile display,  local area vibration,  powered mechanical leading presentation,  tactile-proprioceptive display,  spatial cognition,  

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We propose a new method of presenting two-dimensional information on a tactile display so that visually impaired people are able to perceive them quickly and accurately. The presentation method is developed for a tactile proprioceptive display, which can present information on not only conventional “concave–convex” presentation, but also vibration presentation in arbitrary area on a tactile display and mechanical leading presentation by mechanically leading user's fingers using haptic device. In this paper, we outline the presentation methods and the developed tactile-prop display, and objectively evaluate the effect of the mechanical leading condition on space recognition. In the experiment, after having been led to the position of four objects by mechanical leading, the subject indicated the space position by the recall method. The presentation conditions of leading velocity and stay time at the object were set for the experimental factor. As a result, relations with each factor and the regenerated error of the space position was revealed, and the guideline of adequate leading condition was obtained.