Quantization matrix prediction for video encoding and decoding
US12160577B2 · kind B2 · utility
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Key dates
| Filing date | Aug 6, 2020 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Decoding and/or encoding video information included in a bitstream can involve a predicted quantization matrix associated with at least a portion of the video information and a syntax element indicating that at least one coefficient of the predicted quantization matrix is to be interpreted as a residual such that the decoding and/or encoding of at least a portion of the video information is based on a combination of the predicted quantization matrix and the residual, where the syntax element is obtained from the bitstream during decoding, or included in the bitstream during encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.