Restoration filter generation device and method, image processing device and method, imaging device, and non-transitory computer-readable medium
US9984449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2017 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Jun 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/632
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A restoration filter generation device which generates a restoration filter for performing a restoration process on luminance system image data, the restoration process being based on a point-image distribution in an optical system, the luminance system image data being image data relevant to luminance and being generated based on image data for each color of multiple colors, the restoration filter generation device including an MTF acquisition device which acquires a modulation transfer function MTF for the optical system; and a restoration filter generation device which generates the restoration filter based on the modulation transfer function MTF, the restoration filter suppressing an MTF value of image data for each color of the multiple colors to 1.0 or less at least in a region of a particular spatial frequency or less, the image data for each color of the multiple colors corresponding to the luminance system image data after the restoration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.