Abstract
Graphic contents are important resources to communicate information and their use is fundamental in the teaching process. Visually impaired people do not have easy access to this resource owing to their impairment. They mainly use tactile graphics to explore visual contents. In this article, we propose the development of a tool for tablets intended to aid visually impaired people in interpreting tactile graphics. After studying different exploration strategies of tactile graphics adopted by visually impaired people, we propose an application that utilizes the benefit of multimodal interactions. Through a case study, three blind students tested the prototype of the application, demonstrating that the solution is a promising approach to aid in the exploration of tactile graphics.
Supported by Federal Universty of Pará and Federal Institute of Pará.
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Notes
- 1.
Tested devices. Tablets: Positivo YPY-AB10E, Apple iPad mini 4, Samsung Galaxy Tab 7, Multilaser M10A, Samsung Galaxy Tab A, Tablet Positivo T1060; Smartphones: Motorola Moto G5S Plus, Motorola Moto G6, Motorola Moto X4, Motorola Moto Z2 Play, Samsung Galaxy J4, Lenovo K8 Plus, Apple iPhone 6S, Apple iPhone 7 plus.
- 2.
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Acknowledgment
We thank the participants who volunteered to participate in the experiments to test this prototype, the CTI, ASCOM and NAPNE of the IFPA Tucuruí Campus for their technical support in preparing and performing the experiments, and all those who have contributed in any way to the development of this work.
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Zamprogno, L.Z., Merlin, B., Ferreira, J., Fülber, H., Veras, A. (2021). Multimodal Tactile Graphics Using T-TATIL, A Mobile Application for Tactile Exploration by Visually Impaired People. In: Antona, M., Stephanidis, C. (eds) Universal Access in Human-Computer Interaction. Design Methods and User Experience. HCII 2021. Lecture Notes in Computer Science(), vol 12768. Springer, Cham. https://doi.org/10.1007/978-3-030-78092-0_33
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