Producing smooth edge transitions in displayed composite images

摘要

A method and apparatus for producing smooth light-intensity transitions in overlapping regions of a composite image projected by a plurality of electrically-controlled projectors and displayed on a screen by disposing shadowing devices between each projector and the screen to cast gradual shadow in the overlapping regions to reduce light-intensity variations therein; and electrically controlling the gain of the projectors to substantially eliminate any residual variations in light-intensity in the overlapping regions.