Cirrin: a word-level unistroke keyboard for pen input
Proceedings of the 11th annual ACM symposium on User interface software and technology
Quikwriting: continuous stylus-based text entry
Proceedings of the 11th annual ACM symposium on User interface software and technology
SHARK2: a large vocabulary shorthand writing system for pen-based computers
Proceedings of the 17th annual ACM symposium on User interface software and technology
Distant freehand pointing and clicking on very large, high resolution displays
Proceedings of the 18th annual ACM symposium on User interface software and technology
Hand-Gesture Based Text Input for Wearable Computers
ICVS '06 Proceedings of the Fourth IEEE International Conference on Computer Vision Systems
Robust computer vision-based detection of pinching for one and two-handed gesture input
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
From letters to words: efficient stroke-based word completion for trackball text entry
Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility
Analyzing the input stream for character- level errors in unconstrained text entry evaluations
ACM Transactions on Computer-Human Interaction (TOCHI)
Graffiti vs. unistrokes: an empirical comparison
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Mid-air text input techniques for very large wall displays
Proceedings of Graphics Interface 2009
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Beyond flat surface computing: challenges of depth-aware and curved interfaces
MM '09 Proceedings of the 17th ACM international conference on Multimedia
Proceedings of the 2012 ACM international conference on Intelligent User Interfaces
An evaluation of game controllers and tablets as controllers for interactive tv applications
Proceedings of the 14th ACM international conference on Multimodal interaction
Special Section on Touching the 3rd Dimension: 3D selection with freehand gesture
Computers and Graphics
Freehand gestural text entry for interactive TV
Proceedings of the 11th european conference on Interactive TV and video
Memorability of pre-designed and user-defined gesture sets
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
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In this paper, we explore the opportunity of bringing unistroke text entry to freehand gesture interfaces. Using existing text entry methods directly in such interfaces is impractical because of the differences between freehand gestures and traditional forms of input. To address this problem, we consider the design constraints of text entry methods using freehand gestures, and present AirStroke, a new technique based on a reengineering of the well-known unistroke technique Graffiti. Using Graffiti's alphabet, AirStroke takes advantage of the richer input capabilities of two-handed freehand gestures by providing combined mode selection and character entry with one hand, as well as word completion with the other hand. A longitudinal study suggests that AirStroke has competitive speed and accuracy to unistroke methods based on stylus input.