Viewer importance adaptive bit rate delivery
US11044507B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Sep 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/85406
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Described are methods of delivering media, such as a video sequence, to a client device from a server, taking into account the relative importance of different portions of the video sequence. The sequence is divided into temporal segments, with each segment encoded at a plurality of bitrates (and hence qualities). A viewer importance parameter is assigned to each segment, indicating the relative importance of that segment, with the information stored in a manifest file or similar. The client receives this segment and viewer importance data in a manifest file. The bit rate of each segment selected for download is dependent on the relative importance of that segment and future segments. The selected segment is then delivered to the client device from the server. Thus, segments having a higher viewer importance will be delivered with a higher encoded bitrate than segments having a lower viewer importance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.