Method of deriving color response characteristics of image acquisition device and image acquisition device therefor
US12262124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2023 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | May 20, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2209/047
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of deriving color response characteristics of an image acquisition device, the method including: collecting first training data sets; deriving a first-order color response characteristic of the image acquisition device by performing a matching operation of statistically matching a relationship between device coordinates and colorimetric coordinates of an image acquisition device using the first training data sets; collecting second training data sets corresponding to a spectrum of one or more edge regions of a color gamut of a color matching function representing a sensitivity of a human eye; and deriving a second-order color response characteristic of the image acquisition device by further performing the matching operation using the second training data sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.