Lens shading correction to minimize data loss
US12200378B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 26, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method including receiving a raw image and a stored calibration, determining a lens shading correction (LSC) gain based on the stored calibration, factoring the LSC gain into a factored gain including a local tone mapping (LTM) gain and a factored LSC gain, and applying the factored gain to the raw image to generate a corrected image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.