Method for processing projection-based frame that includes at least one projection face packed in 360-degree virtual reality projection layout
US11004173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video processing method includes: obtaining a plurality of projection faces from an omnidirectional content of a sphere, wherein the omnidirectional content of the sphere is mapped onto the projection faces via cubemap projection, and the projection faces comprise a first projection face; obtaining, by a re-sampling circuit, a first re-sampled projection face by re-sampling at least a portion of the first projection face through non-uniform mapping; generating a projection-based frame according to a projection layout of the cubemap projection, wherein the projection-based frame comprises the first re-sampled projection face packed in the projection layout; and encoding the projection-based frame to generate a part of a bitstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.