Adaptive loop filtering (ALF) with non-linear clipping
US11750804B2 · kind B2 · utility
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Key dates
| Filing date | Nov 29, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling an Adaptive Loop Filter for one or more image portions of an image, the method comprising controlling filtering on a first sample of an image portion based on one or more neighbouring sample value(s) of the first sample value, wherein the controlling uses a nonlinear function which has one or more variables based on one or more of the neighbouring sample value(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.