Method and apparatus for obtaining extended depth of field image and electronic device
US12205313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2022 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Apr 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20221
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for obtaining an extended depth of field image, where the method includes: determining a target focal length range based on an initial focal length, where the target focal length range includes the initial focal length; obtaining a plurality of images of a photographed object for a plurality of focal lengths in the target focal length range; and registering and fusing the plurality of images to obtain an extended depth of field image. The target focal length range of concern to a user is selected based on the initial focal length, such that there is no need to obtain images of all focal lengths of a lens, a quantity of obtained images and processing time of registration and fusion can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.