Method and device for encoding and decoding image using motion vector resolution scaling
US12126827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Nov 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video encoding method according to an embodiment of the present invention includes generating header information that includes information about resolutions of motion vectors of respective blocks, determined based on motion prediction for a unit image. Here, the header information includes flag information indicating whether resolutions of all motion vectors included in the unit image are integer-pixel resolutions. Further, a video decoding method according to another embodiment of the present invention includes extracting information about resolutions of motion vectors of each unit image from header information included in a target bitstream to be decoded; and a decoding unit for decoding the unit image based on the resolution information. Here, the header information includes flag information indicating whether resolutions of all motion vectors included in the unit image are integer-pixel resolutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.