Title
Hybrid-Brailler: Combining Physical and Gestural Interaction for Mobile Braille Input and Editing
Abstract
ABSTRACTBraille input enables fast nonvisual entry speeds on mobile touchscreen devices. Yet, the lack of tactile cues commonly results in typing errors, which are hard to correct. We propose Hybrid-Brailler, an input solution that combines physical and gestural interaction to provide fast and accurate Braille input. We use the back of the device for physical chorded input while freeing the touchscreen for gestural interaction. Gestures are used in editing operations, such as caret movement, text selection, and clipboard control, enhancing the overall text entry experience. We conducted two user studies to assess both input and editing performance. Results show that Hybrid-Brailler supports fast entry rates as its virtual counterpart, while significantly increasing input accuracy. Regarding editing performance, when compared with the mainstream technique, Hybrid-Brailler shows performance benefits of 21% in speed and increased editing accuracy. We finish with lessons learned for designing future nonvisual input and editing techniques.
Year
DOI
Venue
2018
10.1145/3173574.3173601
Conference on Human Factors in Computing Systems
Keywords
Field
DocType
Blind, Braille, Mobile, Text Entry, Editing, Touchscreen
Caret,Sensory cue,Computer science,Gesture,Touchscreen,Human–computer interaction,Clipboard,Braille,Multimedia,User studies,Text entry
Conference
Citations 
PageRank 
References 
1
0.35
26
Authors
4
Name
Order
Citations
PageRank
Daniel R. Trindade1182.52
André Rodrigues2534.57
Tiago Guerreiro336645.90
Hugo Nicolau438134.33