Coding and decoding method and apparatus and devices therefor
US12081750B2 · kind B2 · utility
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3References
19Claims
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Key dates
| Filing date | Feb 22, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method, apparatus, and devices for encoding and decoding are provided. In one aspect, a method includes: if a current pixel point in a current block satisfies an enable condition of an enhanced refinement mode, determining a gradient value of the current pixel point based on an original pixel value of the current pixel point and an original pixel value of a surrounding pixel point of the current pixel point; based on the gradient value of the current pixel point and the original pixel value of the current pixel point, determining a refined pixel value of the current pixel point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.