Encoding video using palette prediction and intra-block copy
US11025913B2 · kind B2 · utility
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16References
23Claims
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Key dates
| Filing date | May 1, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | May 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/567
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for video encoding is described herein. The system includes a processor to execute a multi-pass palette search and mapping on a video frame to generate palette candidates. The processor is to execute an intra block copy prediction on the video frame to generate intra-block-copy candidates. The processor is to also calculate a rate distortion optimization (RDO) cost for a set of generated residuals, the palette candidates, and the intra-block-copy candidates. The processor is to further also execute a final mode decision based on a comparison of the rate distortion optimization (RDO) costs.
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