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.
Year
DOI
Venue
2015
10.1145/2745555.2746643
W4A
Field
DocType
Citations 
Input/output,Capacitive sensing,Mobile device,Engineering,Computer hardware,Braille,Perception,Communication device
Conference
6
PageRank 
References 
Authors
0.50
6
5
Name
Order
Citations
PageRank
Hugo Nicolau138134.33
Kyle Montague214721.54
Tiago Guerreiro336645.90
André Rodrigues43813.25
Vicki Hanson563565.13