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.
Original language | English |
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Title of host publication | W4A 2015 |
Subtitle of host publication | Proceedings of the 12th Web for All Conference |
Place of Publication | New York |
Publisher | Association for Computing Machinery |
Number of pages | 4 |
ISBN (Print) | 9781450333429 |
DOIs | |
Publication status | Published - 18 May 2015 |
Event | 12th International Web for All Conference, W4A 2015 - Florence, Italy Duration: 18 May 2015 → 20 May 2015 |
Conference
Conference | 12th International Web for All Conference, W4A 2015 |
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Country/Territory | Italy |
City | Florence |
Period | 18/05/15 → 20/05/15 |
Keywords
- Blind
- Braille
- Input
- Multitouch
- Output
- Vibrotactile
ASJC Scopus subject areas
- Computer Networks and Communications