Digital watermarking systems and methods
US7454035B2 · kind B2 · utility
27Cited by
102References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to digital watermarking systems and methods. In a first implementation, so-called movie studio rough-cuts are watermarked to provide a forensic tracking clue or to provide security for distributed rough-cuts. In another implementation, a watermark is determined for a compressed video object. The watermark is compressed as an object and the watermarked object is then associated with the compressed video object. The two separate objects are provided to a rendering device, which after decompressing both objects, embeds the watermark in the video prior to rendering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.