US 12,003,862 B2
Camera timestamp validation
Julian Grahsl, Vienna (AT); and Alexander Kane, Vienna (AT)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Snap Inc., Santa Monica, CA (US)
Filed on Jun. 21, 2022, as Appl. No. 17/845,478.
Prior Publication US 2023/0412928 A1, Dec. 21, 2023
Int. Cl. H04N 23/72 (2023.01); H04N 13/111 (2018.01); H04N 13/243 (2018.01)
CPC H04N 23/72 (2023.01) [H04N 13/111 (2018.05); H04N 13/243 (2018.05); H04N 2213/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method of determining an image capture timestamp offset, the method comprising:
generating a plurality of optical flashes at an optical flash rate;
capturing a set of images of the plurality of optical flashes at an image capture rate, the image capture rate being different from the optical flash rate, and each image of an optical flash including an associated image timestamp;
timestamping signals associated with generation of the plurality of optical flashes;
determining an intensity of each image in the set of images;
determining an image having the greatest intensity in the set of images; and
determining a difference between a timestamp of the image having the greatest intensity and the timestamp of a corresponding optical flash to generate an image capture timestamp offset.