Adaptive blind interaction technique for touchscreens
Universal Access in the Information Society
Text Entry Systems: Mobility, Accessibility, Universality
Text Entry Systems: Mobility, Accessibility, Universality
No-look notes: accessible eyes-free multi-touch text entry
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Input finger detection for nonvisual touch screen text entry in Perkinput
Proceedings of Graphics Interface 2012
An evaluation of BrailleTouch: mobile touchscreen text entry for the visually impaired
MobileHCI '12 Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services
LêbrailleTWT: providing visual accessibility to twitter on touchscreen devices
Proceedings of the 18th Brazilian symposium on Multimedia and the web
Interacting with mobile devices via VoiceOver: usability and accessibility issues
Proceedings of the 24th Australian Computer-Human Interaction Conference
DigiTaps: eyes-free number entry on touchscreens with minimal audio feedback
Proceedings of the 26th annual ACM symposium on User interface software and technology
The today and tomorrow of Braille learning
Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility
UbiBraille: designing and evaluating a vibrotactile Braille-reading device
Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility
Disambiguation of imprecise input with one-dimensional rotational text entry
ACM Transactions on Computer-Human Interaction (TOCHI)
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The emergence of touch screen devices poses a new set of challenges regarding text-entry. These are more obvious when considering blind people, as touch screens lack the tactile feedback they are used to when interacting with devices. The available solutions to enable non-visual text-entry resort to a wide set of targets, complex interaction techniques or unfamiliar layouts. We propose BrailleType, a text-entry method based on the Braille alphabet. BrailleType avoids multi-touch gestures in favor of a more simple single-finger interaction, featuring few and large targets. We performed a user study with fifteen blind subjects, to assess this method's performance against Apple's VoiceOver approach. BrailleType although slower, was significantly easier and less error prone. Results suggest that the target users would have a smoother adaptation to BrailleType than to other more complex methods.