Efficient coding of video data in the presence of video annotations
US11109042B2 · kind B2 · utility
0Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/895
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for coding a video to be overlaid by annotations are devised. A motion compensated predictive coding is employed, wherein coding parameters of video pixel blocks are determined based on the pixel blocks' relation to the annotations. A decoder decodes the video and annotates it based on metadata, obtained from the coder or other sources, describing the annotations' appearance and rendering mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.