Still Building a Multi-touch Tabletop

The previous incarnation of the multi-touch tabletop has some issues with the top mirror occluding the camera, heat problems and other niggling issues. To fix this I adopted a simpler single mirror approach with the projector slightly outside the footprint of the table, this made locating the cameras and IR illumination trivial, the IR illuminators reflect off a rounded piece of plastic covered with paper which seems to give good even illumination (though the illuminators are very powerful and from high-spec CCTV equipment). Using CCV 1.4 and the CL Eye driver/platform the tracking is pretty much perfect over the whole projection area (which takes up most of the area inside the black rectangle).