System and method for providing 360° immersive video based on gaze vector information
US10419738B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2018 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/698
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for providing immersive video based on gaze vector information. A gaze vector is obtained from a client device operating to display a 360° immersive video asset to a user, wherein each video frame comprises an array of tiles projected on a 3-dimensional (3D) display environment viewed by the user in which the user is immersed, the gaze vector defining a gaze direction in the 3D display environment where the user is viewing at any particular time. An angular separation is determined between the gaze vector and a directional vector associated with each tile location respectively corresponding to the array of tiles in the 3D display environment. Responsive to the angular separations, a plurality of tile weights corresponding to the array of tiles are determined for use in selecting tiles of different bitrate qualities of the 360° immersive video asset in order to facilitate the assembly of a video frame having different qualities across the 360-degree view to be delivered to the client device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.