“Body coupled FingerRing”: wireless wearable keyboard
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Snap clutch, a moded approach to solving the Midas touch problem
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Organic user interfaces: designing computers in any way, shape, or form
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The performance of hand postures in front- and back-of-device interaction for mobile computing
International Journal of Human-Computer Studies
HandSense: discriminating different ways of grasping and holding a tangible user interface
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Double-side multi-touch input for mobile devices
CHI '09 Extended Abstracts on Human Factors in Computing Systems
Hand grip pattern recognition for mobile user interfaces
IAAI'06 Proceedings of the 18th conference on Innovative applications of artificial intelligence - Volume 2
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Grasp sensing for human-computer interaction
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Gestural interaction on the steering wheel: reducing the visual demand
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Inspirational bits: towards a shared understanding of the digital material
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Nenya: subtle and eyes-free mobile input with a magnetically-tracked finger ring
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part I
What I grasp is what I control: interacting through grasp releases
Proceedings of the Sixth International Conference on Tangible, Embedded and Embodied Interaction
Drag and drop the apple: the semantic weight of words and images in touch-based interaction
Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction
Tickle: a surface-independent interaction technique for grasp interfaces
Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction
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Novel user interaction styles with flexible/rollable screens
Proceedings of the Biannual Conference of the Italian Chapter of SIGCHI
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This paper focuses on combining front and back device interaction on grasped devices, using touch-based gestures. We designed generic interactions for discrete, continuous, and combined gesture commands that are executed without hand-eye control because the performing fingers are hidden behind a grasped device. We designed the interactions in such a way that the thumb can always be used as a proprioceptive reference for guiding finger movements, applying embodied knowledge about body structure. In a user study, we tested these touch-based interactions for their performance and users' task-load perception. We combined two iPads together back-to-back to form a double-sided touch screen device: the PinchPad. We discuss the main errors that led to a decrease in accuracy, identify stable features that reduce the error rate, and discuss the role of 'body schema' in designing gesture-based interactions where the user cannot see their hands properly.