Method and system to decode image watermarks
US7085398B2 · kind B2 · utility
5Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2003 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Aug 24, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/32352
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a device and a method for the determining local geometrical variations that have occurred in data, the data comprise a reference pattern X. The method comprises, for example, the following steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.