Coding and decoding methods, coding and decoding device
US11825082B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 9, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Nov 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a decoding method, including: acquiring coded data of a current block; determining size information of subblocks based on subblock partition information of the current block in response to the current block satisfying a subblock partition condition and determining, based on the coded data of the current block, that the current block activates intra subblock partition; determining, based on the size information of each subblock, a transform pair corresponding to the subblock; and performing an inverse transform on inversely quantized data of the subblocks based on the transform pairs corresponding to the subblocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.