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
Low-cost multi-touch sensing through frustrated total internal reflection
Proceedings of the 18th annual ACM symposium on User interface software and technology
A force sensitive multi-touch array supporting multiple 2-D musical control structures
NIME '07 Proceedings of the 7th international conference on New interfaces for musical expression
Extending 2D object arrangement with pressure-sensitive layering cues
Proceedings of the 21st annual ACM symposium on User interface software and technology
Alternate interface technologies emerge
Communications of the ACM
Proceedings of the fourth international conference on Tangible, embedded, and embodied interaction
iCon: utilizing everyday objects as additional, auxiliary and instant tabletop controllers
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Grip sensing in smart toys: a formative design method for user categorization
CHI '10 Extended Abstracts on Human Factors in Computing Systems
ACM SIGGRAPH 2010 Talks
UIST '10 Proceedings of the 23nd annual ACM symposium on User interface software and technology
Madgets: actuating widgets on interactive tabletops
UIST '10 Proceedings of the 23nd annual ACM symposium on User interface software and technology
MudPad: localized tactile feedback on touch surfaces
UIST '10 Adjunct proceedings of the 23nd annual ACM symposium on User interface software and technology
Tablaction: collaborative brainstorming system with stylus-fingertip interactions on tablet PCs
Proceedings of the 9th ACM SIGGRAPH Conference on Virtual-Reality Continuum and its Applications in Industry
Grasp sensing for human-computer interaction
Proceedings of the fifth international conference on Tangible, embedded, and embodied interaction
SurfaceMouse: supplementing multi-touch interaction with a virtual mouse
Proceedings of the fifth international conference on Tangible, embedded, and embodied interaction
MudPad: tactile feedback and haptic texture overlay for touch surfaces
ACM International Conference on Interactive Tabletops and Surfaces
Integrating 2D mouse emulation with 3D manipulation for visualizations on a multi-touch table
ACM International Conference on Interactive Tabletops and Surfaces
Touch input on curved surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
FingerGlass: efficient multiscale interaction on multitouch screens
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Magic desk: bringing multi-touch surfaces into desktop work
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Geckos: combining magnets and pressure images to enable new tangible-object design and interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ZeroTouch: a zero-thickness optical multi-touch force field
CHI '11 Extended Abstracts on Human Factors in Computing Systems
TactileTape: low-cost touch sensing on curved surfaces
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
A domain specific language to define gestures for multi-touch applications
Proceedings of the 10th Workshop on Domain-Specific Modeling
Tabletop Ensemble: touch-enabled virtual percussion instruments
I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Touché: enhancing touch interaction on humans, screens, liquids, and everyday objects
Proceedings of the SIGCHI Conference 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
GaussSketch: add-on magnetic sensing for natural sketching on smartphones
ACM SIGGRAPH 2012 Posters
GaussSense: attachable stylus sensing using magnetic sensor grid
Proceedings of the 25th annual ACM symposium on User interface software and technology
Designing for low-latency direct-touch input
Proceedings of the 25th annual ACM symposium on User interface software and technology
Proton++: a customizable declarative multitouch framework
Proceedings of the 25th annual ACM symposium on User interface software and technology
PyzoFlex: printed piezoelectric pressure sensing foil
Proceedings of the 25th annual ACM symposium on User interface software and technology
LongPad: a touchpad using the entire area below the keyboard of a laptop computer
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Fillables: everyday vessels as tangible controllers with adjustable haptics
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Indirect shear force estimation for multi-point shear force operations
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Morphees: toward high "shape resolution" in self-actuated flexible mobile devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
GravitySpace: tracking users and their poses in a smart room using a pressure-sensing floor
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
MagPen: magnetically driven pen interactions on and around conventional smartphones
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Understanding touch selection accuracy on flat and hemispherical deformable surfaces
Proceedings of Graphics Interface 2013
Designing rich touch interaction through proximity and 2.5D force sensing touchpad
Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration
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Recently, there has been great interest in multi-touch interfaces. Such devices have taken the form of camera-based systems such as Microsoft Surface [de los Reyes et al. 2007] and Perceptive Pixel's FTIR Display [Han 2005] as well as hand-held devices using capacitive sensors such as the Apple iPhone [Jobs et al. 2008]. However, optical systems are inherently bulky while most capacitive systems are only practical in small form factors and are limited in their application since they respond only to human touch and are insensitive to variations in pressure [Westerman 1999]. We have created the UnMousePad, a flexible and inexpensive multitouch input device based on a newly developed pressure-sensing principle called Interpolating Force Sensitive Resistance. IFSR sensors can acquire high-quality anti-aliased pressure images at high frame rates. They can be paper-thin, flexible, and transparent and can easily be scaled to fit on a portable device or to cover an entire table, floor or wall. The UnMousePad can sense three orders of magnitude of pressure variation, and can be used to distinguish multiple fingertip touches while simultaneously tracking pens and styli with a positional accuracy of 87 dpi, and can sense the pressure distributions of objects placed on its surface. In addition to supporting multi-touch interaction, IFSR is a general pressure imaging technology that can be incorporated into shoes, tennis racquets, hospital beds, factory assembly lines and many other applications. The ability to measure high-quality pressure images at low cost has the potential to dramatically improve the way that people interact with machines and the way that machines interact with the world.