System and method for video coding
US11528508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2022 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Jan 31, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An encoder includes circuitry and memory coupled to the circuitry. The circuitry, in response to a first reconstructed image sample being located outside a virtual boundary, duplicates a reconstructed sample located inside and adjacent to the virtual boundary to generate the first reconstructed image sample. The circuitry generates a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to the first reconstructed image sample of a luma component. The circuitry generates a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component. The circuitry generates a third coefficient value by adding the first coefficient value to the second coefficient value, and encodes a third reconstructed image sample of the chroma component using the third coefficient value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.