Methods and devices for quantization and de-quantization design in video coding
US12382049B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 16, 2024 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 16, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for video encoding is provided. The method may be applied in an encoder and includes: determining, for a first coding block, a quantization parameter and a quantized level; deriving a scale value by scaling the quantization parameter by a scale factor, determining a plurality of parameters associated with a coding unit (CU); obtaining a plurality of bit-shifts by bit-shifting the plurality of parameters; and obtaining a plurality of coefficients associated with the CU based on the quantized level, the scale value, and the plurality of bit-shifts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.