Video coding using reference picture resampling supporting region of interest
US11533474B2 · kind B2 · utility
2Cited by
5References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 11, 2020 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Mar 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and bitstream syntax are described for canvas size, single layer or multi-layer, scalable decoding, with support for regions of interest (ROI), using a decoder supporting reference picture resampling. Offset parameters for a region of interest in a current picture and offset parameters for an ROI in a reference picture are taken into consideration when computing scaling factors to apply reference picture resampling. Syntax elements for supporting ROI regions under reference picture resampling are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.