Quantization of residuals in video coding
US12294702B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jul 6, 2020 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Mar 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of decoding an encoded stream into a reconstructed output signal is provided, the method comprising: receiving a first output signal decoded from a first base encoded stream according to a first codec; receiving a level encoded stream; decoding the level encoded stream to obtain a set of residuals; and, combining the set of residuals with the first output signal to generate a reconstructed signal, wherein the decoding the level encoded stream comprises: decoding a set of quantized coefficients from the level encoded stream; dequantizing the set of quantized coefficients.
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