Encoding and decoding methods and corresponding devices
US11695962B2 · kind B2 · utility
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2References
26Claims
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Key dates
| Filing date | Nov 7, 2018 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Nov 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/132
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A decoding method is disclosed. First, context for a syntax element associated with a current transform coefficient of a block of a picture is determined. The context is determined based on the area of said block, on the position of the current transform coefficient within the block and on the number of non-zero neighboring transform coefficients in a local template. Second, the syntax element is decoded based at least on the determined context. Advantageously, the local template depends on the shape of said block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.