Summing-up video frames to enhance image brightness
US11223792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Feb 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20216
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method enhances brightness in video frames of a video during streams. The method includes determining, by a processor, that a first video frame has low light. The method further includes applying, by the processor, a linear correction to provide a first brightness enhancement in the first video frame that modifies a first brightness of a predetermined darkest percentage of pixels to be less than a darkness threshold value or a second brightness of a predetermined lightest percentage of the pixels to be greater than a lightness threshold value. The method further includes averaging, by the processor, the first brightness enhancement of the first video frame with a set of brightness enhancements corresponding to previous video frames to generate a modified video.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.