US 12,444,082 B2
Device and method for calibrating a camera of a vehicle
Jong Min Park, Incheon (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Dec. 19, 2022, as Appl. No. 18/084,056.
Claims priority of application No. 10-2022-0098725 (KR), filed on Aug. 8, 2022.
Prior Publication US 2024/0046518 A1, Feb. 8, 2024
Int. Cl. G06T 7/80 (2017.01); G06T 3/18 (2024.01); G06V 10/25 (2022.01); G06V 10/75 (2022.01); G06V 20/56 (2022.01)
CPC G06T 7/80 (2017.01) [G06T 3/18 (2024.01); G06V 10/25 (2022.01); G06V 10/751 (2022.01); G06V 20/588 (2022.01); G06T 2207/30256 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device for calibrating a camera of a vehicle, the device comprising:
a first camera configured to acquire a first image;
a second camera configured to acquire a second image; and
a processor configured to:
extract a first class of interest from the first image;
extract a second class of interest from the second image;
project pixel coordinates of the first class of interest onto the second image to convert the pixel coordinates; and
correct parameters of the second camera such that a difference between the converted pixel coordinates of the first class of interest and pixel coordinates of the second class of interest is minimized,
wherein the converted pixel coordinates of the first class of interest are generated by inputting the pixel coordinates of the first class of interest and the parameters of the second camera to a warping function, and
wherein the first class of interest and the second class of interest include an object having a height of zero “0”.