Immersive video streaming using view-adaptive prefetching and buffer control
US11924391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Dec 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4621
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system obtains a data set representing immersive video content for display at a display time, including first data representing the content according to a first level of detail, and second data representing the content according to a second higher level of detail. During one or more first times prior to the display time, the system causes at least a portion of the first data to be stored in a buffer. During one or more second times prior to the display time, the system generates a prediction of a viewport for displaying the content to a user at the display time, identifies a portion of the second data corresponding to the prediction of the viewport, and causes the identified portion of the second data to be stored in the video buffer. At the display time, the system causes the content to be displayed to the user using the video buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.