Systems and methods for image capture calibration
US12067692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Jul 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods in accordance with various embodiments of the invention can generate term (or PolyMap) coefficients that properly calibrate any camera lens using information obtained from a calibration pattern (e.g., chessboard patterns). Term coefficients in accordance with several embodiments of the invention can be used to transform a warped image to a dewarped image by mapping image information from the warped image to the dewarped coordinates. Determining calibration coefficients in accordance with certain embodiments of the invention can include novel and inventive processes for capturing calibration images, processing the calibration images, and/or deriving inputs needed for proper calibration as described in this disclosure. Processes described in this description can provide for improvements in the field of image processing, especially in increasing the speed of dewarping processes and in the accurate capture of calibration pattern images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.