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
reacTIVision: a computer-vision framework for table-based tangible interaction
Proceedings of the 1st international conference on Tangible and embedded interaction
ThinSight: integrated optical multi-touch sensing through thin form-factor displays
EDT '07 Proceedings of the 2007 workshop on Emerging displays technologies: images and beyond: the future of displays and interacton
FLATIR: FTIR multi-touch detection on a discrete distributed sensor array
Proceedings of the 3rd International Conference on Tangible and Embedded Interaction
A short guide to modulated light
Proceedings of the 3rd International Conference on Tangible and Embedded Interaction
ACM International Conference on Interactive Tabletops and Surfaces
ZeroTouch: an optical multi-touch and free-air interaction architecture
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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The increased attention which multitouch interfaces have received in recent years is partly due to the availability of cheap sensing hardware such as FTIR-based screens. However, this method has so far required a bulky projector-camera setup behind the screen. In this paper, we present a new approach to FTIR sensing by "inverting" the setup and placing the camera in front of the screen. This allows the use of unmodified flat screens as display, thereby dramatically shrinking the space required behind the screen and enabling the easy construction of new types of interactive surfaces.