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Many interactive surfaces have the ability to detect the shape of hands or objects placed on them. However, shape information is typically either condensed to individual contact points or categorized as discrete gestures. This does not leverage the full expressiveness of touch input, thus limits the actions users can perform in interactive applications. We present ShapeTouch, an exploration of interactions...
Negotiation and coordination of activities involving a number of people can be a difficult and time-consuming process, even when all participants are collocated. We propose the use of spatial proximity regions around mobile devices on a table to significantly reduce the effort of proposing and exploring content within a group of collocated people. In order to determine the location of devices on ordinary...
This paper presents a novel interface for a digital paint system: IntuPaint. A tangible interface for a digital paint easel, using an interactive surface and electronic brushes with a tuft of bristles, has been developed. The flexible brush bristles conduct light by means of total internal reflection inside the individual bristles. This enables to capture subtle paint nuances of the artist in a way...
In this paper we describe extensions to our work on ThinSight, necessary to scale the system to larger tabletop displays. The technique integrates optical sensors into existing off-the-shelf LCDs with minimal impact on the physical form of the display. This allows thin form-factor sensing that goes beyond the capabilities of existing multi-touch techniques, such as capacitive or resistive approaches...
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