US 12,444,386 B2
Off-axis color correction in dynamic image capture of video wall displays
Jeremy Hochman, Walnut, CA (US); and Christopher S. Byrne, Pasadena, CA (US)
Assigned to H2VR HoldCo, Inc., Valencia, CA (US)
Filed by H2VR HoldCo, Inc., Covina, CA (US)
Filed on Nov. 30, 2023, as Appl. No. 18/525,035.
Application 18/525,035 is a continuation of application No. 18/137,198, filed on Apr. 20, 2023, granted, now 11,837,193.
Application 18/137,198 is a continuation of application No. PCT/US2021/056123, filed on Oct. 21, 2021.
Claims priority of provisional application 63/094,747, filed on Oct. 21, 2020.
Prior Publication US 2024/0135899 A1, Apr. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 5/02 (2006.01); G06V 10/56 (2022.01); G09G 3/32 (2016.01); G09G 3/36 (2006.01); G09G 5/06 (2006.01); G09G 5/10 (2006.01); H04N 1/60 (2006.01); H04N 5/57 (2006.01); H04N 9/69 (2023.01); H04N 13/128 (2018.01)
CPC G09G 5/02 (2013.01) [G06V 10/56 (2022.01); G09G 3/32 (2013.01); G09G 2300/026 (2013.01); G09G 2320/0666 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A system for off-axis color correction in dynamic image capture of video displays utilizing video display off-axis color uniformity characteristics at a plurality of viewing angles, comprising:
a correction engine configured to receive off-axis color uniformity characteristics and to apply a color uniformity correction to a video stream to be presented on the video display, wherein the color uniformity correction is based on the received off-axis color uniformity characteristics for a current image capture angle and field of view, whereby color distortions in the captured images due to off-axis image capture are reduced or eliminated;
wherein the correction engine is further configured to:
generate relative color gain levels for the display across the image capture field of view;
generate the color correction function as a normalizing function based on comparison of the relative color gain levels across said field of view with color gain levels at a zero degree viewing angle reference; and
calculate corrected color values across the field of view based on the normalizing function.