Imagine you are trying to repair a piece of equipment.
You call up the manufacturer, and as you open up the machine, you see
a 3-D computer graphics image superimposed on top of the video image.
Thad Starner at the MIT Media Lab gave me this idea, and we were going
to try to implement it with a CAD model of a photocopier.
He suggested the following scenario: You fix visual markers onto the copier
inside, so that the cad model can be matched to the video using machine