System and method for view optimized 360 degree virtual reality video streaming
US11166067B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An approach for streaming a coded virtual reality (VR) video stream including receiving a segments of the coded VR video stream; storing the segments in a playback buffer; based on determining that a current playback time is within a threshold time of a playback time of a buffered segment, that a current duration of the playback buffer is larger than a threshold duration, and that a current bandwidth is larger than a threshold bandwidth, and that a current viewport is different from a previous viewport, storing at least one refined tile corresponding to the current viewport in the playback buffer; constructing a frame based on the buffered segment and the at least one refined tile corresponding to the current viewport; and decoding the coded VR video stream based on the constructed frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.