Image shooting apparatus that extends depth of field by recovering blurred image and an image shooting method thereof
US10217194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20032
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides an image shooting apparatus and an image shooting method that obtain a recovered image with high precision by using an optimal point spread function (PSF) without deriving an image shooting distance of a photographed object, an image shooting program, and a recording medium that records the image shooting program. An image shooting apparatus includes an optical system, an image shooting element configured behind the optical system; an image recovery processing portion configured to perform image processing and recovery processing on obtained image data; and a recovered image output portion configured to output a recovered image; and the image recovery processing portion includes a recovery filter storage memory configured to store multiple recovery filters pre-manufactured by using multiple point spread functions; a recovery filter processing portion configured to obtain multiple middle candidate images; and an image comment portion configured to output a middle candidate image with an optimal profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.