US 11,711,500 B1
Systems and methods for calibrating display systems
Matthew Post, Brampton (CA); and Peter Anthony Van Eerd, Guelph (CA)
Assigned to CHRISTIE DIGITAL SYSTEMS USA, INC.
Filed by CHRISTIE DIGITAL SYSTEMS USA, INC., Cypress, CA (US)
Filed on Jan. 31, 2022, as Appl. No. 17/589,122.
Int. Cl. H04N 17/02 (2006.01); H04N 17/00 (2006.01); G09G 3/00 (2006.01); H04N 1/60 (2006.01); H04N 1/00 (2006.01); H04N 9/31 (2006.01)
CPC H04N 9/3194 (2013.01) [H04N 1/00087 (2013.01); H04N 1/6033 (2013.01); G09G 3/006 (2013.01); H04N 17/00 (2013.01); H04N 17/002 (2013.01); H04N 17/02 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of calibrating a display system, the method comprising:
displaying a test pattern including a plurality of blobs;
detecting one or more base blobs in the displayed test pattern;
identifying, based on the detected base blobs, patches of the test pattern, wherein each patch comprises one of the base blobs and a subset of additional blobs detected in the displayed test pattern;
determining a patch location for at least one patch within the test pattern based on the subset of the additional blobs in the patch to determine a blob location for at least one detected blob;
determining a calibration parameter for the display system based on the blob location and a detected attribute of the at least one detected blob; and
calibrating the display system using the calibration parameter.