Device and method for dynamic range expansion in a virtual reality scene
US11238572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lower dynamic range visual content (21) of a virtual reality or VR scene represented in a curved shape form is adapted to a higher dynamic range display of the virtual reality scene. At least two views planar key views (230) of the VR scene area obtained, at least two parameter values (240) respectively associated with those planar key views are obtained, corresponding to at least one parameter adapted to expand a dynamic range of a visual content, and a higher dynamic range visual content (22) corresponding to the lower dynamic range visual content in at least part of the VR scene extending beyond the planar key views is determined, based on the parameter values. Applications to Inverse Tone Mapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.