A study on the manipulation of 2D objects in a projector/camera-based augmented reality environment
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
PlayAnywhere: a compact interactive tabletop projection-vision system
Proceedings of the 18th annual ACM symposium on User interface software and technology
Comparison of Silhouette Shape Descriptors for Example-based Human Pose Recovery
FGR '06 Proceedings of the 7th International Conference on Automatic Face and Gesture Recognition
TinkerSheets: using paper forms to control and visualize tangible simulations
Proceedings of the 3rd International Conference on Tangible and Embedded Interaction
Bonfire: a nomadic system for hybrid laptop-tabletop interaction
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Using a depth camera as a touch sensor
ACM International Conference on Interactive Tabletops and Surfaces
Z-touch: an infrastructure for 3d gesture interaction in the proximity of tabletop surfaces
ACM International Conference on Interactive Tabletops and Surfaces
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The LampTop enables an effective low cost touch interface utilizing only a single camera and a pico projector. It embeds a small shape in the image generated by the user application (e.g. a touch screen menu with icons) and detects touch by measuring the geometrical distortion in the camera captured image. Fourier shape descriptors are extracted from the camera-captured image to obtain an estimate of the shape distortion. The touch event is detected using a Support Vector Machine. Quantitative results show that the proposed method can effectively detect touch.