Side motion refinement in video encoding/decoding systems
US11930205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Feb 5, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for decoding a current block in a current picture of a video bitstream includes decoding, from the video bitstream, a first motion vector for the current block relative to a first reference block of a first reference picture having a first picture order count, and decoding, from the video bitstream, a second motion vector for the current block relative to a second reference block of a second reference picture having a second picture order count. A similarity metric is generated based on a comparison of the first motion vector and the second motion vector. The method further includes determining whether to refine the first motion vector based on the similarity metric, generating a first refined motion vector from the first motion vector, and performing motion compensation to derive a first reference block from the first reference picture using the first refined motion vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.