Method and device for balancing foreground-background luminosity
US10834329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | May 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20224
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes: obtaining a first image of a scene while an illumination component is set to an inactive state; obtaining a second image of the scene while the illumination component is set to a pre-flash state; determining one or more illumination control parameters for the illumination component for a third image of the scene that satisfy a foreground-background balance criterion based on a function of the first and second images in order to discriminate foreground data from background data within the scene; and obtaining the third image of the scene while the illumination component is set to an active state in accordance with the one or more illumination control parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.