Interactive touch-wall
Alongside with Davide Gomba I was contracted by Tinker.it to build an interactive touch-screen interface on a wall projection. The basic application for this was to scroll a series of images like Apple's famous cover-flow mechanism.
To acomplish the task we used an infra-red illuminator and a small camera with a homemade infra-red filter attached to a mac mini running Community Core Vision. We would then manipulate the TUIO messages in Flash to display the resulting interaction.