Image distortion correction method and apparatus
US11861813B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Jun 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for correcting a distorted image includes: acquiring a first coordinate of each pixel in a distorted image to be corrected; determining internal parameters for shooting the distorted image; acquiring a second coordinate corresponding to the first coordinate based on a corresponding relationship between the internal parameters and image distortion degrees, in which the second coordinate is an undistorted coordinate; acquiring a distance between the first coordinate and a coordinate of a center point of the distorted image, and determining a smoothing processing coefficient corresponding to the distance based on a smoothing processing function, in which the smoothing processing function is configured to indicate a proportional relationship between the distance and the smoothing processing coefficient; and acquiring a distortion correction image by performing smoothing correction on each first coordinate based on the smoothing processing coefficient and the second coordinate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.