Tactile graphics are a common way to present information to people with vision impairments. Tactile graphics can be used to explore a broad range of static visual content but aren’t well suited to representing animation or interactivity. We introduce a new approach to creating dynamic tactile graphics that combines a touch screen tablet, static tactile overlays, and small mobile robots. We introduce a prototype system called RoboGraphics and several proof-of-concept applications. We evaluated our prototype with seven participants with varying levels of vision, comparing the RoboGraphics approach to a flat screen, audio-tactile interface. Our results show that dynamic tactile graphics can help visually-impaired participants explore data quickly and accurately.

 

IRON Lab Superhuman Computing Lab

IRON Lab Website Superhuman Computing Lab Website

 

Publications

Darren Guinness, Annika Muehlbradt, Daniel Szafir, and Shaun K. Kane. 2019. RoboGraphics: Dynamic Tactile Graphics Powered by Mobile Robots. In Proceedings of the 21st International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '19). ACM, New York, NY, USA. DOI: https://doi.org/10.1145/3308561.3353804 (Pittsburgh, PA - Oct. 28, 2019)