US 12,469,428 B1
Local demura algorithms for correcting display artifacts
Ruipeng Sun, Pleasanton, CA (US); Chuan Pu, Foster City, CA (US); and Wenjun Liao, Sunnyvale, CA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Jun. 27, 2024, as Appl. No. 18/757,227.
Int. Cl. G09G 3/20 (2006.01); G09G 3/00 (2006.01)
CPC G09G 3/2092 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/046 (2013.01); G09G 2330/10 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method for performing local demura corrections for processing display artifacts, the method comprising:
receiving image data;
segmenting the image data into a plurality of regions of interest;
applying a plurality of demura algorithms to the plurality of regions of interest to generate a plurality of corrected regions of interest by at least:
applying a first demura algorithm to a first region of interest; and
applying a second demura algorithm different from the first demura algorithm to a second region of interest;
generating a corrected image using at least the plurality of corrected regions of interest;
determining whether the corrected image satisfies one or more predetermined criteria, wherein the one or more predetermined criteria comprises determining whether structural similarity indices of the plurality of corrected regions of interest are within a predetermined range; and
upon determining that the corrected image satisfies the one or more predetermined criteria, outputting demura parameters associated with the plurality of demura algorithms.