Chroma residual scaling foreseeing a corrective value to be added to luma mapping slope values
US12238304B2 · kind B2 · utility
1Cited by
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21Claims
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Key dates
| Filing date | Sep 16, 2020 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Dec 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
At least a method and an apparatus are presented for efficiently encoding or decoding video. For example, one or more chroma residual scaling parameters are determined based one or more luma mapping parameters and based on a corrective value of the one or more chroma residual scaling parameters. The video is encoded or decoded based on the determined one or more chroma residual scaling parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.