Identifying long term reference frame using scene detection and perceptual hashing
US11956441B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2021 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Dec 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/423
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and devices are provided for encoding a video stream which comprise encoding a plurality of frames of video acquired from different points of view, generating statistical values for the frames of video determined from values of pixels of the frames, generating, for each of the plurality of frames, a perceptual hash value based on statistical values of the frame and encoding a current frame comprising video acquired from a corresponding one of the different points of view using a previously encoded reference frame based on a similarity of perceptual hashes of the current frame and the previously encoded reference frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.