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An advantage of physical interfaces over graphical widgets is that they bring controls closer to hand. VoodooSketch is a system that supports dynamic customisation of tabletop interfaces with physical controls that users can arrange on palettes. The system employs pen and paper techniques to achieve two novel capabilities: first, users are able to sketch controls that are immediately operational for...
Handoff of objects and tools occurs frequently and naturally in face-to-face work; in tabletop groupware, however, digital handoff is often awkward. In this paper, we investigate ways of improving support for digital handoff in tabletop systems. We first observed how handoff works at a physical table, and then compared the performance of tangible and standard transfer techniques on digital tables...
Based on recent demonstrations of low-cost, infrared-based point tracking, we explore two-handed, surface-less interaction for presentation. On both hands, thumb and index finger are equipped with retro-reflective markers which are tracked by a Wiimote. We contribute a robust finger pairing and pinch recognition method that allows us to discriminate the hands and to initiate actions. We apply this...
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