Tangible Touch Screen Mobile Device for Visually Impaired People: A Braille Text Entering Approach

Tangible Touch Screen Mobile Device for Visually Impaired People: A Braille Text Entering Approach

Abstract

Mobile devices with touch screen have brought greater task dynamicity and Interaction. However, the lack of a physical keyboard makes mobile devices hard to be used by visually impaired people. The aim of this work is to develop a method and a interface to support the needs of this audience in text entering. Thereby, the Braille method is used and a Android app is being developed for simulating a virtual keyboard. In order to allow user screen handling and interaction, a plastic film with embossed dot marks is being built. This plastic film has the 6 Braille dots and some others for control and interaction. The interface validation is being performed with support of a visually impaired collaborator, with congenital blindness and Braille literate. In order to improve the interface and the text entering software the volunteer performs a lot of experiments and evaluations. The specialist evaluation shows the proposed method has a great potential. Once this stage is completed usability tests with greater number of volunteers will be performed.

Publication
In Proceedings of 12th Brazilian Workshop on Virtual and Augmented Reality (WRVA)
Date
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Text in Portuguese, with English title and abstract.