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Issue No. 05 - September/October (2003 vol. 23)
ISSN: 0272-1716
pp: 26-36
Frank Bentley , Massachusetts Institute of Technology
Konrad Tollmar , Massachusetts Institute of Technology
David Demirdjian , Massachusetts Institute of Technology
Kimberle Koile , Massachusetts Institute of Technology
Trevor Darrell , Massachusetts Institute of Technology
<p>Perceptive presence systems automatically convey awareness of user states to a remote location or application without the user having to perform explicit commands or mode selection. The article describes a component-based architecture for creating presence applications using perceptual user interface widgets. Each widget performs a machine perception function, such as tracking a face or monitoring activity in a specific 3D location. Widgets provide an abstraction barrier between the perception algorithms and the needs of application writers. Two example applications developed using this framework are presented: one uses a luminous display to express a user's availability for communication to a colleague at a remote location, and a second uses activity to control devices in a context-aware environment. </p>

D. Demirdjian, T. Darrell, K. Tollmar, K. Koile and F. Bentley, "Perceptive Presence," in IEEE Computer Graphics and Applications, vol. 23, no. , pp. 26-36, 2003.
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