Improving the accuracy of touch screens: an experimental evaluation of three strategies
CHI '88 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Reification, polymorphism and reuse: three principles for designing visual interfaces
AVI '00 Proceedings of the working conference on Advanced visual interfaces
SmartSkin: an infrastructure for freehand manipulation on interactive surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Paper windows: interaction techniques for digital paper
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
GelForce: a vision-based traction field computer interface
CHI '05 Extended Abstracts 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 probabilistic approach to modeling two-dimensional pointing
ACM Transactions on Computer-Human Interaction (TOCHI)
Precise selection techniques for multi-touch screens
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Direct-touch vs. mouse input for tabletop displays
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Shift: a technique for operating pen-based interfaces using touch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Lucid touch: a see-through mobile device
Proceedings of the 20th annual ACM symposium on User interface software and technology
The bar of soap: a grasp recognition system implemented in a multi-functional handheld device
CHI '08 Extended Abstracts on Human Factors in Computing Systems
Sphere: multi-touch interactions on a spherical display
Proceedings of the 21st annual ACM symposium on User interface software and technology
Providing dynamically changeable physical buttons on a visual display
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Empirical evaluation for finger input properties in multi-touch interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The UnMousePad: an interpolating multi-touch force-sensing input pad
ACM SIGGRAPH 2009 papers
Contact area interaction with sliding widgets
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Mouse 2.0: multi-touch meets the mouse
Proceedings of the 22nd annual ACM symposium on User interface software and technology
PhotoelasticTouch: transparent rubbery tangible interface using an LCD and photoelasticity
Proceedings of the 22nd annual ACM symposium on User interface software and technology
FlyEye: grasp-sensitive surfaces using optical fiber
Proceedings of the fourth international conference on Tangible, embedded, and embodied interaction
Skinput: appropriating the body as an input surface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Fat finger worries: how older and younger users physically interact with PDAs
INTERACT'05 Proceedings of the 2005 IFIP TC13 international conference on Human-Computer Interaction
OmniTouch: wearable multitouch interaction everywhere
Proceedings of the 24th annual ACM symposium on User interface software and technology
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Rock-paper-fibers: bringing physical affordance to mobile touch devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An experimental comparison of touch interaction on vertical and horizontal surfaces
Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design
Tickle: a surface-independent interaction technique for grasp interfaces
Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction
Watchit: simple gestures and eyes-free interaction for wristwatches and bracelets
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Squaring the circle: how framing influences user behavior around a seamless cylindrical display
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Feel the action: dynamic tactile cues in the interaction with deformable uis
CHI '13 Extended Abstracts on Human Factors in Computing Systems
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
I feel it in my fingers: haptic guidance on touch surfaces
Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction
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Advances in sensing technology are currently bringing touch input to non-planar surfaces, ranging from spherical touch screens to prototypes the size and shape of a ping-pong ball. To help interface designers create usable interfaces on such devices, we determine how touch surface curvature affects targeting. We present a user study in which participants acquired targets on surfaces of different curvature and at locations of different slope. We find that surface convexity increases pointing accuracy, and in particular reduces the offset between the input point perceived by users and the input point sensed by the device. Concave surfaces, in contrast, are subject to larger error offsets. This is likely caused by how concave surfaces hug the user's finger, thus resulting in a larger contact area. The effect of slope on targeting, in contrast, is unexpected at first sight. Some targets located downhill from the user's perspective are subject to error offsets in the opposite direction from all others. This appears to be caused by participants acquiring these targets using a different finger posture that lets them monitor the position of their fingers more effectively.