Patent ID: 8953049
Filing Date: 2015-02-10
Classification: H04N

Abstract:
1. A method of providing a projected video image, comprising: projecting a test image onto a non-electronic projection surface, at least two areas of the non-electronic projection surface having different optical properties, the different optical properties causing the at least two areas of the non-electronic projection surface to appear visually different; obtaining a captured image of a the non-electronic projection surface; cropping the captured image within a frame to exclude some or all of an area enclosed by the frame, the frame corresponding to an area on the non-electronic projection surface where a compensated image will be projected; determining, at a receiver, at least one optical property of the different optical properties, the receiver operable to receive a program service and to output an image for presentation on the non-electronic projection surface; deriving a correction matrix based on the at least one optical property of the different optical properties, the correction matrix including correction values for the at least two areas of the non-electronic projection surface with different optical properties; applying the correction matrix to the image for presentation to obtain the compensated image; and projecting the compensated image onto the non-electronic projection surface.