Embedding video watermarks without visible impairments
US11082710B2 · kind B2 · utility
5Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, devices, and computer-program products are provided for adding and decoding data to a digital video signal in a visually imperceptible manner. For example, an encoded video frame can be obtained, and one or more blocks of the encoded video frame can be decoded. Binary data can be added to a subset of pixels from a set of pixels of the one or more blocks. For instance, a pixel component can be modulated to add the binary data. The one or more blocks can be re-encoded using at least one coding mode. The re-encoded one or more blocks can be added to the encoded video frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.