Patent ID: 8836797

Claim:
A method in a computing system having a pattern generator and an image capture device for calibrating a visual display comprising a fixed array of a number of pixels and corresponding subpixels, the image capture device being separate from the display, the method comprising: identifying a fraction of the number of pixels and corresponding subpixels of the display; generating, by the pattern generator, patterns for illuminating proper subsets of the pixels and corresponding subpixels of the display, such that— each pattern illuminates the identified fraction of the number of pixels and corresponding subpixels of the display, and each of the pixels and corresponding subpixels of the display is illuminated in at least one pattern; and for each generated pattern— illuminating subpixels of the display according to the generated pattern; capturing, by the image capture device, information about each of the illuminated subpixels such that the capture information includes distinct information about individual subpixels illuminated according to the pattern; analyzing, by the computing system, the captured information about the illuminated subpixels; and calculating correction factors for illuminated pixels and corresponding subpixels.