Issues and techniques in touch-sensitive tablet input
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
DiamondTouch: a multi-user touch technology
Proceedings of the 14th annual ACM symposium on User interface software and technology
The sound of one hand: a wrist-mounted bio-acoustic fingertip gesture interface
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Sensor systems for interactive surfaces
IBM Systems Journal
Design and analysis of delimiters for selection-action pen gesture phrases in scriboli
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Low-cost multi-touch sensing through frustrated total internal reflection
Proceedings of the 18th annual ACM symposium on User interface software and technology
A gestural input through finger writing on a textured pad
CHI '07 Extended Abstracts on Human Factors in Computing Systems
Blui: low-cost localized blowable user interfaces
Proceedings of the 20th annual ACM symposium on User interface software and technology
Stane: synthesized surfaces for tactile input
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
TimeTilt: Using Sensor-Based Gestures to Travel through Multiple Applications on a Mobile Device
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Bonfire: a nomadic system for hybrid laptop-tabletop interaction
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Alternate interface technologies emerge
Communications of the ACM
Skinput: appropriating the body as an input surface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
XRDS: Crossroads, The ACM Magazine for Students - The Future of Interaction
XRDS: Crossroads, The ACM Magazine for Students - The Future of Interaction
Surfboard: keyboard with microphone as a low-cost interactive surface
UIST '10 Adjunct proceedings of the 23nd annual ACM symposium on User interface software and technology
Subjective difficulty estimation for interactive learning by sensing vibration sound on desk panel
AmI'10 Proceedings of the First international joint conference on Ambient intelligence
Skinput: appropriating the skin as an interactive canvas
Communications of the ACM
Sensor synaesthesia: touch in motion, and motion in touch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
TapBack: towards richer mobile interfaces in impoverished contexts
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A ring-shaped interactive device for large remote display and mobile device control
Proceedings of the 13th international conference on Ubiquitous computing
TapSense: enhancing finger interaction on touch surfaces
Proceedings of the 24th annual ACM symposium on User interface software and technology
Augmenting touch interaction through acoustic sensing
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
PseudoButton: enabling pressure-sensitive interaction by repurposing microphone on mobile device
CHI '12 Extended Abstracts on Human Factors in Computing Systems
MicPen: pressure-sensitive pen interaction using microphone with standard touchscreen
CHI '12 Extended Abstracts on Human Factors in Computing Systems
Magic finger: always-available input through finger instrumentation
Proceedings of the 25th annual ACM symposium on User interface software and technology
Acoustic barcodes: passive, durable and inexpensive notched identification tags
Proceedings of the 25th annual ACM symposium on User interface software and technology
Bathcratch: touch and sound-based DJ controller implemented on a bathtub
ACE'12 Proceedings of the 9th international conference on Advances in Computer Entertainment
Device-free interaction in smart domestic environments
Proceedings of the 4th Augmented Human International Conference
WorldKit: rapid and easy creation of ad-hoc interactive applications on everyday surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
StickEar: augmenting objects and places wherever whenever
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Touch & activate: adding interactivity to existing objects using active acoustic sensing
Proceedings of the 26th annual ACM symposium on User interface software and technology
StickEar: making everyday objects respond to sound
Proceedings of the 26th annual ACM symposium on User interface software and technology
Design principles of hand gesture interfaces for microinteractions
Proceedings of the 6th International Conference on Designing Pleasurable Products and Interfaces
Keyboard clawing: input method by clawing key tops
HCI'13 Proceedings of the 15th international conference on Human-Computer Interaction: interaction modalities and techniques - Volume Part IV
HiFi: hide and find digital content associated with physical objects via coded light
Proceedings of the 15th Workshop on Mobile Computing Systems and Applications
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We present Scratch Input, an acoustic-based input technique that relies on the unique sound produced when a fingernail is dragged over the surface of a textured material, such as wood, fabric, or wall paint. We employ a simple sensor that can be easily coupled with existing surfaces, such as walls and tables, turning them into large, unpowered and ad hoc finger input surfaces. Our sensor is sufficiently small that it could be incorporated into a mobile device, allowing any suitable surface on which it rests to be appropriated as a gestural input surface. Several example applications were developed to demonstrate possible interactions. We conclude with a study that shows users can perform six Scratch Input gestures at about 90% accuracy with less than five minutes of training and on wide variety of surfaces.