Finger-Tracking with the Wii Remote

This is a video from Johnny Chung Lee of Carnegie Mellon University on how to use the Wii remote to track your fingers' movements in thin air for multi-point interactivity with gadgets. The set-up simply consists of an IR LED array and some reflective tape over the user's fingers, combined with software, of course.  The LED array emits the infrared rays that the Wii remote collects after they bounce off the 'reflective' fingers. The grid software is a custom program written using a C# wiimote library and DirectX. More information about the grid software can be found at http://www.cs.cmu.edu/~johnny/project...