This is our [ Thierry Giles and myself ] first prototype in the field of multi-touch surfaces. As the well know project of Jeff Han, our interface uses the FTIR technique. Infrared light and computer vision are used to track users’ fingers motion/interaction with the surface.

Thanks to: Julien Gachadoat (v3ga), and of course Processing and its community for their tools, libraries, sketches (i.e. “Exhaust” by Ryan Alexander), code samples, advices, etc.