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PRET Printer: Development and Evaluation of a Passive Refreshable Tactile Printer

Bhatnagar, Tigmanshu; Holloway, Catherine; (2024) PRET Printer: Development and Evaluation of a Passive Refreshable Tactile Printer. In: Proceedings of the 7th ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies. (pp. pp. 156-166). ACM (Association for Computing Machinery) Green open access

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Abstract

While audio-based interfaces make information accessible to people with visual impairments, some information, such as diagrams, graphs, and charts, can be better interpreted tactilely. We introduce a new Passive Refreshable Tactile (PRET) Printer concept. Using off-the-shelf components of a laser engraver and the nascent Tacilia technology, the prototype enables the creation of refreshable tactile graphics. By leveraging Pixel Art as a rendering process, we enhance the diversity of image production on this medium. We contribute technical specifications, open-source files to make the PRET printer and a qualitative evaluation of the concept by tactile learners. The prototype facilitates rapid and cost-effective development of refreshable tactile media, crucial for improving comprehension. The work builds upon existing research, furthering the groundwork to address the needs of tactile learners worldwide and establishing a foundation for further innovation and development in this domain.

Type: Proceedings paper
Title: PRET Printer: Development and Evaluation of a Passive Refreshable Tactile Printer
Event: COMPASS '24: ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies
ISBN-13: 979-8-4007-1048-3
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/3674829.3675070
Publisher version: http://dx.doi.org/10.1145/3674829.3675070
Language: English
Additional information: © The Authors 2024. Original content in this paper is licensed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) Licence (https://creativecommons.org/licenses/by/4.0/).
Keywords: Tactile Display, Tactile Graphics, Laser, Shape Memory Materials
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10197641
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