Martin’s research interests include: Image Processing, Visual Tracking, Human Computer Interfaces, and Robot Vision. His thesis involved hand tracking and Vision based interactive surfaces.
Visit Martin’s web site or have a look at this hand tracking video where a camera mounted to a HMD tracks Martin’s hand throughout a sample drawing application.
Be sure to check out the other videos in the Vision Based Interactive Surfaces section!
The following demonstration is probably my favorite video from Martin’s website: