Johnny Chung Lee from the Carnegie Mellon University demonstrates how to create a low-cost multi-touch capable whiteboard using a Wiimote, a pen with infrared LEDs, a projector and your average laptop.
[youtube]http://www.youtube.com/watch?v=5s5EvhHy7eQ[/youtube]
Really nice! I can imagine that you could even project from below a surface instead, effectively getting rid of the “shadows”.
Additionally Petter Hutterer, the man behind the Multi-Pointer X Server project, has recently released an initial version of a Wiimote X input driver (patches are welcome). It will allow you to use the Wiimote as a full blown X input device and controlling your mouse. Might be cool to apply Johnny’s whiteboard idea here.
Looks like I have to go hunting for some nice projector and loads of free time soon…
Update: Oh heck, how could I forget “lasertraq” a cool solution for Linux which works with a regular webcam/camera instead of the Wiimote but basically allows you to do the same stuff. Heck it even uses the superdupe GStreamer framework!
