Video signal processing method for brightness adjustment
US11671553B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal processing device and method thereof are provided in the present application. The video processing device includes a storage and a processor. The storage stores a plurality of brightness mapping relationships. If set brightness corresponding to the brightness mapping relationships does not match the target brightness, the processor selects a first mapping relationship and a second mapping relationship of two pieces of set brightness closing to target brightness from the brightness mapping relationships. A target mapping relationship corresponding to the target brightness is obtained by an interpolation according to the first mapping relationship, the first brightness, the second mapping relationship and the corresponding set brightness. The processor converts nonlinear brightness information of a first video signal into linear brightness information of a second video signal according to the target mapping relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.