Chroma intra prediction method and device
US11451792B2 · kind B2 · utility
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Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/463
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A chroma intra prediction method and device are provided. The method applied to a decoder includes parsing bitstream data corresponding to a current chroma block, and determining that a prediction mode corresponding to the current chroma block is a direct mode (DM); determining an intra prediction mode of the current chroma block from a set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of DM, LM, LM_T or LM_L; and determining a reconstructed value of the current chroma block according to the intra prediction mode.
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