US 12,288,364 B2
Method for providing calibration data for calibrating a camera, method for calibrating a camera, method for producing at least one predefined point-symmetric region, and device
Stephan Simon, Sibbesse (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 18/251,815
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Oct. 15, 2021, PCT No. PCT/EP2021/078610
§ 371(c)(1), (2) Date Jun. 12, 2023,
PCT Pub. No. WO2022/100959, PCT Pub. Date May 19, 2022.
Claims priority of application No. 10 2020 214 250.5 (DE), filed on Nov. 12, 2020.
Prior Publication US 2024/0013437 A1, Jan. 11, 2024
Int. Cl. G06T 7/80 (2017.01); G06T 7/30 (2017.01); G06T 7/68 (2017.01)
CPC G06T 7/80 (2017.01) [G06T 7/30 (2017.01); G06T 7/68 (2017.01); G06T 2207/30208 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for providing calibration data for calibrating a camera, the method comprising the following steps:
reading in image data provided by the camera from an interface to the camera, the image data representing a camera image of at least one predefined even and/or odd point-symmetric region in an environment of the camera;
determining at least one center of symmetry of the at least one even and/or odd point-symmetric region using the image data and a determination rule;
performing a comparison of a position of the at least one center of symmetry in the camera image with a predefined position of at least one reference center of symmetry in a reference image relative to a reference coordinate system to determine a positional deviation between the center of symmetry and the reference center of symmetry; and
ascertaining displacement information for at least a subset of pixels of the camera image relative to corresponding pixels of the reference image using the positional deviation, the calibration data being provided using the displacement information.