Chroma quantization parameter adjustment in video encoding and decoding
US11909974B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Mar 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding system uses a value of a chroma quantization parameter table to quantize or de-quantize chroma values of a block of the video, the chroma quantization parameter table being directly coded in a set of parameters at the picture level or at the sequence level of the coded video stream. A corresponding encoding method, encoding device, decoding method, decoding device, and non-transitory readable medium are proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.