The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 15, 2025

Filed:

Oct. 25, 2023
Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Sai Vishnu Aluru, Commerce Township, MI (US);

Michael Dominic Done, Addison Township, MI (US);

Michael Cervoni, Lake Orion, MI (US);

Syed Mahdi, Hazel Park, MI (US);

Aadi Kothari, Princeton, NJ (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/80 (2017.01); G06T 5/92 (2024.01); G06T 7/13 (2017.01);
U.S. Cl.
CPC ...
G06T 7/80 (2017.01); G06T 5/92 (2024.01); G06T 7/13 (2017.01); G06T 2207/20036 (2013.01);
Abstract

Aspects of the present disclosure include methods, apparatuses, and vehicles for performing intrinsic calibration of the cameras in the vehicle. A processor may acquire plural images of a target captured by the camera at different locations. For each image, the processor may tone map the image, binarize the tone-mapped image, define a structuring element based on the digital form of the shape of the target, perform morphology on the image to align and calibrate the structuring elements, filter the target and modify each of the other pixels to black, and compile an output image. Based on the calibration, the principal point values may be shifted to account for discrepancies and store calibrated values in each camera.


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