Patent ID: 6115022
Filing Date: 2000-09-05
Classification: H04N

Abstract:
A system for adjusting video signals representing an array of raster images to compensate for projection defects comprising:a plurality of projectors to display the array of raster images, each raster image including red, green and blue color components, to form a composite projected image;a three dimensional array of smoothing factors, each smoothing factor being associated with a portion of the composite projected image; andmeans for applying the smoothing factors to the video signals to remove the projection defects resulting from display of the array of raster images, wherein the three dimensional array of smoothing factors comprises a smoothing factor for each portion of the composite projected image for each of red, green, and blue color signals of the video signals, and wherein each smoothing factor is applied to a selected portion of the composite projected image by multiplying the smoothing factor with video signal values for the selected portion.