US 12,149,675 B2
Systems and techniques for camera synchronization
Cullum James Baldwin, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 14, 2022, as Appl. No. 17/840,547.
Claims priority of provisional application 63/301,209, filed on Jan. 20, 2022.
Prior Publication US 2023/0231984 A1, Jul. 20, 2023
Int. Cl. H04N 13/296 (2018.01); H04N 23/73 (2023.01)
CPC H04N 13/296 (2018.05) [H04N 23/73 (2023.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for processing image data, the apparatus comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
determine, for each camera of a plurality of cameras associated with the apparatus, a common point within an exposure time of a frame being requested from each camera based at least on a respective camera sensor read delay for each camera, a previous frame captured by each camera, and a pending frame previously requested from each camera, the respective camera sensor read delay for each camera of the plurality of cameras including a delay between a respective end of exposure time and a respective start of frame time for each camera;
determine, based on the common point determined for each camera of the plurality of cameras, a respective synchronization error of each camera from the plurality of cameras; and
adjust, based on the respective synchronization error of each camera, a duration of the frame at one or more cameras from the plurality of cameras, wherein the adjusted duration of the frame aligns the common point within each exposure time at each camera for the frame.