Multiple predictor candidates for motion compensation
US11245921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Different implementations are described, particularly implementations for selecting a predictor candidate from a set of multiple predictor candidates for motion compensation of a picture block based on a motion model. The motion model, may be, e.g., an affine model in a merge mode for a video content encoder or decoder. In an embodiment, a predictor candidate is selected from the set based on a motion model for each of the multiple predictor candidates, and may be based on a criterion such as, e.g., a rate distortion cost. The corresponding motion field is determined based on, e.g., one or more corresponding control point motion vectors for the block being encoded or decoded. The corresponding motion field of an embodiment identifies motion vectors used for prediction of sub-blocks of the block being encoded or decoded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.