US 12,444,081 B2
Automatic unification of camera intrinsic model
Yao Hu, Sterling Heights, MI (US); Hao Yu, Troy, MI (US); Guanlun He, Ann Arbor, MI (US); Xinyu Du, Oakland Township, MI (US); and Binbin Li, Columbus, OH (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Sep. 19, 2022, as Appl. No. 17/947,550.
Prior Publication US 2024/0095954 A1, Mar. 21, 2024
Int. Cl. G06T 7/80 (2017.01); G06T 5/80 (2024.01); G06T 15/10 (2011.01)
CPC G06T 7/80 (2017.01) [G06T 5/80 (2024.01); G06T 15/10 (2013.01); G06T 2207/30268 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a camera for a vehicle, comprising:
querying the camera to obtain an intrinsic parameter of the camera;
estimating a unified parameter based on the intrinsic parameter of the camera, wherein the unified parameter is determined using a linear transformation of a unified model for the camera and a non-linear transformation of the unified model, wherein the non-linear transformation is a polynomial function that determines a distortion by the camera of a three-dimensional field of points onto a two-dimensional image plane, wherein the polynomial function is determined using a neural network; and
performing at least one application on an image from the camera using the unified parameter.