Image encoding/decoding method and device for signaling filter information on basis of chroma format, and method for transmitting bitstream
US11575890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may include determining a chroma array type of a current image, determining an adaptive loop filter (ALF) indicator of a chroma component based on the chroma array type, and performing ALF filtering with respect to a reconstructed image based on a value of the ALF indicator. The value of the ALF indicator may be determined to be a predetermined value without being obtained from a bitstream, based on the chroma array type being a predetermined type, and the value of the ALF indicator may be obtained from the bitstream, based on the chroma array type being not the predetermined type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.