Efficient in-loop filtering for video coding
US11917144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2022 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jun 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Various schemes for realizing efficient in-loop filtering are described, manifested in low latency and reduced hardware cost for an in-loop filter comprising at least two filtering stages. An apparatus receives pixel data of a current block of a picture and one or more neighboring blocks thereof, based on which the apparatus performs a filtering operation and generates a filtered block that includes completely filtered sub-blocks and partially filtered sub-blocks. The apparatus further outputs an output block that includes the completely filtered sub-blocks as well as a respective portion of each of the partially filtered sub-blocks, wherein the respective portion is adjacent to one of the completely filtered sub-blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.