Microvision

July 7, 2011
Interactive Projection Method, Apparatus and System

Abstract

An apparatus determines a cursor position in an illumination field of a projector. An obstruction is detected in the illumination field. The cursor position is determined as the point on the obstruction furthest from where the obstruction crosses a border of the illumination field.

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(thanks to me_wwwing of Yahoo MVIS Private Members' Forum)