Method and apparatus for processing a medium dynamic range video signal in SL-HDR2 format
US11388447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jul 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A medium dynamic range video signal and associated metadata are received, wherein the metadata include data representative of a peak luminance value of the signal. The medium dynamic range video signal is processed in a first mode to reconstruct a high dynamic range video signal based on a received standard dynamic range video signal and associated metadata if the peak luminance value of the medium dynamic range video signal is smaller than the peak luminance value of a presentation display, and in a second mode to optimize a received high dynamic range video signal for a rendering device if the peak luminance value of the medium dynamic range video signal is greater than the peak luminance value of the presentation display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.