Sample sets and new down-sampling schemes for linear component sample prediction
US11196998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Feb 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure regards cross-component prediction and methods for deriving of a linear model for obtaining a first-component sample for a first-component block from an associated reconstructed second-component sample of a second-component block in the same frame, the method comprising determining the parameters of a linear equation representing a straight line passing through two points, each point being defined by two variables, the first variable corresponding to a second-component sample value, the second variable corresponding to a first-component sample value, based on reconstructed samples of both the first-component and the second-component; and deriving the linear model defined by the straight line parameters; wherein said determining the parameters uses integer arithmetic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.