Patent ID: 7635189

Claim:
A method comprising the steps of: receiving image data comprising a plurality of image streams, each of the image streams comprising a plurality of frames; projecting the image data toward a viewable screen, wherein the projecting step comprises alternating between the image streams; and filtering frames projected from a first one of the image streams through a first type filter region on a rotating filter wheel; and filtering frames projected from a second one of the image streams through a second type filter region on the rotating filter wheel; wherein the image data contains a sync signals corresponding to one of the image streams and the step of filtering frames from a first one of the image streams comprises detecting the sync signals in the image data that corresponds to the first one of the image streams; and wherein the filter wheel contains a plurality of markers corresponding to a number of the filter regions and the step of filtering frames from a first one of the image streams further comprises synchronizing the sync signals in the image data with rotational positions of the markers.