Patent ID: 11917309
Assignee: IGNIS INNOVATION INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The optical correction method of claim 9, wherein locating images of the fine features within the calibration images with use of the images of the coarse features in the calibration images further comprises:
generating a coarse estimate of panel pixel locations within the calibration images from the images of the coarse features in the calibration images, by:
locating images of the coarse features in the single calibration image;
identifying the coarse features of the single calibration pattern corresponding to said images of the coarse features; and
generating a coarse mapping between panel pixel locations and calibration image pixel locations from locations of the images of the coarse features in the single calibration image and known locations of the coarse features in the single calibration pattern; and

locating images of the fine features within the calibration images with use of the coarse estimate, by:
estimating expected locations of images of the fine features within the single calibration image with use of the coarse estimate and known locations of the fine features in the single calibration pattern; and, wherein generating correction data for correcting images displayed in the display panel with use of the located images of the fine features further comprises:
generating a high-resolution estimate of panel pixel locations within the calibration images from the located images of the fine features in the calibration images, the high-resolution estimate having greater accuracy than the coarse estimate, by:
for each expected location of an image of a fine feature, determining the closest image of a fine feature in the single calibration image which falls within a distance threshold to identify the fine features of the single calibration pattern corresponding to said images of the fine features; and
generating a high-resolution mapping between panel pixel locations and calibration image pixel locations from locations of the images of the fine features in the single calibration image and known locations of the fine features in the single calibration pattern; and

generating correction data for correcting images displayed in the display panel with use of the high-resolution estimate.