Screen-adaptive decoding of high dynamic range video
US10244244B2 · kind B2 · utility
7Cited by
1References
16Claims
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Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for screen-adaptive decoding of video with high dynamic range (HDR) are described. The methods combine the traditional compositing and display management steps into one screen-adaptive compositing step. Given decoded standard dynamic range (SDR) input data, metadata related to the prediction of output HDR data in a reference dynamic range, and the dynamic range of a target display, new output luma and chroma prediction functions are generated that map directly the input SDR data to output HDR data in the target dynamic range, thus eliminating the display management step.
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