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Sebastian Boring, Otmar Hilliges, Andreas Butz
A Wall-sized Focus plus Context Display
In Proceedings of the Fifth Annual IEEE Conference on Pervasive Computing and Communications (PerCom), New York, NY, USA, Mar. 2007 (bib)

In this paper we present a wall-sized focus plus context display, consisting of three back-projected displays and a steerable projector for output. For input tracking we use a commercial SmartBoard with high precision optical tracking and four additional webcams which provide lower precision tracking on the entire wall. Our approach hence offers two different resolutions in both the output and input direction and thus implements a two-way focus plus context concept with three levels of interac-tivity. We describe the implementation of such a display and discuss the tracking issues encountered. In order to test the display, we have implemented two example applications to explore its capabilities.