DiamondTouch: a multi-user touch technology
Proceedings of the 14th annual ACM symposium on User interface software and technology
SmartSkin: an infrastructure for freehand manipulation on interactive surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Rapidly prototyping Single Display Groupware through the SDGToolkit
AUIC '04 Proceedings of the fifth conference on Australasian user interface - Volume 28
DiamondSpin: an extensible toolkit for around-the-table interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Visual tracking of bare fingers for interactive surfaces
Proceedings of the 17th annual ACM symposium on User interface software and technology
Experiences with and Observations of Direct-Touch Tabletops
TABLETOP '06 Proceedings of the First IEEE International Workshop on Horizontal Interactive Human-Computer Systems
System guidelines for co-located, collaborative work on a tabletop display
ECSCW'03 Proceedings of the eighth conference on European Conference on Computer Supported Cooperative Work
Development and application of large interactive display surfaces
CHINZ '01 Proceedings of the Symposium on Computer Human Interaction
MediaPick: tangible semantic media retrieval system
Proceedings of the international conference on Multimedia
On designing interactivity awareness for ambient displays
Multimedia Tools and Applications
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We present two different Computer Vision based systems that enable multiple users to concurrently manipulate graphic objects presented over tabletop displays. The two solutions have different hardware layouts and use two different algorithms for gesture analysis and recognition. The first one is a media-handling application that can be used by co-located and remote users. The second is a knowledge-building application where users can manipulate the contents of a wiki as a visual concept map. The performance of both systems is evaluated and expounded. A conceptual framework is introduced, providing the fundamental guidelines for the design of natural interaction languages on tabletops.