Image processing method for producing a high dynamic range image of a scene
US11882367B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2020 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Oct 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/741
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing method comprises: performing a spectral analysis of a HDR image (220) to determine whether the HDR image (220) comprises spectral components indicative of a lighting of the scene by a modulated light source; analysing meta-data associated with a set of component images (221) for the HDR image to determine a difference between meta-data for one component image of the set and meta-data for at least one other component image of the set, any difference being indicative of an artefact caused by illumination of the scene by a modulated light source; combining a result of the spectral analysis and the meta-data analysis to provide an indication that illumination of the scene by a modulated light source is causing a visible artefact in at least one of the HDR images; and changing a HDR operating mode of the image processing system (200) accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.