Affine motion prediction for video coding
US10560712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2017 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example method includes obtaining, for a current block of video data, values of motion vectors (MVs) of an affine motion model of a neighboring block of video data; deriving, from the values of the MVs of the affine motion model of the neighboring block, values of predictors for MVs of an affine motion model of the current block; decoding, from a video bitstream, a representation of differences between the values of the MVs of the affine motion model for the current block and the values of the predictors; determining the values of the MVs of the affine motion model for the current block from the values of the predictors and the decoded differences; determining, based on the determined values of the MVs of the affine motion model for the current block, a predictor block of video data; and reconstructing the current block based on the predictor block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.