Researchers from the University of Alberta, University of Toronto and Autodesk have presented a paper and prototype of a proximity-aware multi-touch tabletop. The PC can detect a user’s presence, determine body and arm locations, distinguish between the right and left arms, and map touch points to specific users and specific hands. Watch a video and find out more at Autodesk.
Medusa – proximity-aware multi-touch tabletop
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This is a great idea, but this is a ;lot of hardware to accomplish it. This is very easily done on a touch table with 4 3d depth or stereo ( cheaper even still ) cameras; one facing out from each side of the table and 4 3d depth or stereo cameras facing up from the table…….you would also get way more accuracy that way as the tracking on this video doesn’t seem that good……beyond that this is great work………