Created by Stefano Baraldi (at Natural Interaction), tabulaTouch is a multi-touch sensing platform for tabletop interaction. The first application tabulaMaps allows gestural zooming and navigation over maps. Watch a video.
Although using Frustrated Total Internal Reflection as premiered by Jef Han, Stefano was developing a similar technique for this Lightable when Jefs paper on the [...]

Jeff Han

Back in August last year I posted a project by Jeff Han that demonstrated how a multi-touch surface could work using internal reflection of infrared light and camera tracking. Since then he has been working with a number of demos with collaborators, including many from Philip Davidson, two from Casey Muller and one [...]

I was aware of the work by Jeff Han some time ago, but was reminded (Design is Kinky) to look at his site again. A couple of recent projects caught my eye.
Multi-Touch Sensing through Frustrated Total Internal Reflection
If you have ever seen Lemur (a $2495 multi touch surface) then you will understand what this is. [...]