A paper presented at the Ubiprojection Workshop on Personal Projection at the Pervasive 2010 conference in Helsinki, Finland.
Animation & Sequential Art Principles for Handheld Projector Interaction (PDF 563K). The abstract is as follows:
We present a brief history of historic handheld projection devices and introduce design techniques for handheld projector interaction that draw from the principles of traditional animation and sequential art. Our approach is to utilize the movement of the handheld projector to express the motion and physicality of projected foreground objects. Users interact and control the projected image by moving and gesturing with the handheld projector itself. The overall interaction metaphor, MotionBeam, is applicable in a wide range of scenarios ranging from the behavior of interface elements to interaction with game characters.