Method and device for calibrating a camera mounted on a vehicle
US12394093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Feb 28, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for calibrating a set of extrinsic parameters of a camera mounted on a vehicle is disclosed. The method includes: obtaining a sequence of images, wherein each image depicts a portion of a surrounding environment of the vehicle determining a set of feature points in the sequence of images; determining an area representing a sky in the sequence of images; removing a subset of feature points belonging to the area representing the sky, thereby forming an updated set of feature points; determining a first motion trajectory of the vehicle based on the updated set of feature points; obtaining a second motion trajectory of the vehicle which is based on motion data obtained from other sensors of the vehicle; and calibrating the camera by adjusting the set of extrinsic parameters of the camera based on a difference between the first motion trajectory and the second motion trajectory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.