GestureCalc: An Eyes-Free Calculator for Touch Screens
Bindita Chaudhuri, Leah Perlmutter, Justin Petelka, Philip Garrison, James Fogarty, Jacob O. Wobbrock, Richard E. Ladner · 2019 · Proceedings of the 21st International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)
This full research paper presents GestureCalc, an eyes-free, target-less gesture-based calculator for touch screens, along with a rigorous three-session longitudinal evaluation with eight screen reader users. The system replaces the spatial button layout of conventional…
gesture-based interaction · touchscreen accessibility · blindness · visual impairment · screen reader