Patent ID: 7740361
Filing Date: 2010-06-22
Classification: H04N

Abstract:
1. A method of operating an image display system comprising one or more projectors oriented to project an image on a projection screen and a plurality of image sensors or a single, multi-view sensor configured to acquire overlapping portions of an image projected on the projection screen, the method comprising: operating the projector to project an image comprising one or more image fiducials on the image projection screen; operating the one or more image sensors to acquire first and second portions I identifying screen position coordinates for image fiducials in the first and second portions I establishing a first set of distance metrics D establishing a second set of distance metrics D constructing a global point set from the first and second sets of distance metrics D optimizing alignment of the first and second subsets G operating the projector in a manner that is at least partially dependent on the optimized alignment of the global point set.