2020/05/13 by Viktorija Paneva, Sofia Seinfeld, Michael Kraiczi +1 · 1 voice
Computer Science · #cs.HC
paper · pdf · doi:10.1145/3357236.3395515
published as Proceedings of the 2020 on Designing Interactive Systems Conference (2020) · 8 pages, 8 figures, 2 tables, DIS'20
arxiv created 2020/05/13 · arxiv published 2020/05/13 · arxiv updated 2020/05/14
Mid-air haptic interfaces have several advantages - the haptic information is delivered directly to the user, in a manner that is unobtrusive to the immediate environment. They operate at a distance, thus easier to discover; they are more hygienic and allow interaction in 3D. We validate, for the first time, in a preliminary study with sighted and a user study with blind participants, the use of mid-air haptics for conveying Braille. We tested three haptic stimulation methods, where the haptic feedback was either: a) aligned temporally, with haptic stimulation points presented simultaneously (Constant); b) not aligned temporally, presenting each point independently (Point-By-Point); or c) a combination of the previous methodologies, where feedback was presented Row-by-Row. The results show that mid-air haptics is a viable technology for presenting Braille characters, and the highest average accuracy (94% in the preliminary and 88% in the user study) was achieved with the Point-by-Point method.