Video generating device and method thereof
US11871055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Jun 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/816
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video generating device obtains Laplace pyramid levels of 360° video frames; upscales each of the obtained Laplace pyramid levels so as to recover a set of corresponding Gaussian pyramid levels for each 360° video frame; determines a recovered Gaussian pyramid level among the set of recovered Gaussian pyramid levels for each pixel in each 360° video frame based on a bitrate budget for live streaming and a viewport region by performing a pyramid level assignment procedure; composes a 360° video with heterogeneous spatial quality based on summing up the determined recovered Gaussian pyramid levels for each pixel in each 360° video frame. Thereby, reduction of bitrate while providing a high video quality to the user when watching 360° videos is possible. Furthermore, the disclosure also relates to a download proxy comprising such a video generating device, corresponding methods, and a computer program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.