@inproceedings{01b2500bb75948998e60ea073ae5de6f,
title = "HoliBraille: Multipoint vibrotactile feedback on mobile devices",
abstract = "We propose HoliBraille, a system that enables Braille input and output on current mobile devices. We use vibrotactile motors combined with dampening materials in order to actuate directly on users' fingers. The prototype can be attached to current capacitive touchscreen devices enabling multipoint and localized feedback. HoliBraille can be leveraged in several applications including educational tools for learning Braille, as a communication device for deaf-blind people, and as a tactile feedback system for multitouch Braille input. We conducted a user study with 12 blind participants on Braille character discrimination. Results show that HoliBraille is effective in providing localized feedback; however, character discrimination performance is strongly related with number of simultaneous stimuli. We finish by discussing the obtained results and propose future research avenues to improve multipoint vibrotactile perception.",
keywords = "Blind, Braille, Input, Multitouch, Output, Vibrotactile",
author = "Hugo Nicolau and Kyle Montague and Tiago Guerreiro and Andr{\'e} Rodrigues and Hanson, {Vicki L.}",
year = "2015",
month = may,
day = "18",
doi = "10.1145/2745555.2746643",
language = "English",
series = "W4A 2015 - 12th Web for All Conference",
publisher = "ACM",
booktitle = "W4A 2015 - 12th Web for All Conference",
address = "United States",
note = "12th International Web for All Conference, W4A 2015 ; Conference date: 18-05-2015 Through 20-05-2015",
}