Methods and apparatuses for reference picture resampling
US12177448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2022 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Feb 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for decoding a video signal. A decoder obtains a reference picture I associated with a video block within the video signal. The decoder may further obtain reference samples I(i,j) of the video block from a reference block in the reference picture I. The decoder may also obtain a first down-sampling filter and a second down-sampling filter to respectively generate luma and chroma inter prediction samples of the video block. The decoder may further obtain a third down-sampling filter and a fourth down-sampling filter to respectively generate the luma and chroma inter prediction samples of the video block when the video block is coded by affine mode. The decoder may also obtain inter prediction samples of the video block based on the third and fourth down-sampling filters being applied to the reference samples I(i,j).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.