	US 12,108,027 B2
	Rolling shutter camera pipeline exposure timestamp error determination
Clemens Birklbauer, Vienna (AT); Alexander Kane, Vienna (AT); and Dominik Schnitzer, Vienna (AT)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Snap Inc., Santa Monica, CA (US)
Filed on May 1, 2023, as Appl. No. 18/141,833.
Application 18/141,833 is a continuation of application No. 17/204,076, filed on Mar. 17, 2021, granted, now 11,665,334, issued on May 30, 2023.
Claims priority of provisional application 63/046,383, filed on Jun. 30, 2020.
Prior Publication US 2023/0269364 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 17/00 (2006.01); H04N 23/56 (2023.01); H04N 25/531 (2023.01)

CPC H04N 17/002 (2013.01) [H04N 23/56 (2023.01); H04N 25/531 (2023.01)]

20 Claims

1. An exposure timestamp error determination system for a rolling shutter camera, the system comprising:

a rolling shutter camera pipeline including a rolling shutter image sensor configured to capture an image generated from a light source, the image including a bar code encoded with a barcode timestamp; and

a processor configured to:

obtain a system exposure timestamp determined by the rolling shutter camera pipeline for the captured image;

obtain the barcode timestamp encoded in the bar code of the captured image; and

determine an exposure timestamp error for the rolling shutter camera pipeline by comparing the barcode timestamp to the system exposure timestamp.