Watermark information detection method
US7113613B2 · kind B2 · utility
26Cited by
18References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 20, 2002 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Oct 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digital watermark information detection method for detecting information inserted as a digital watermark from contents has a step of converting the contents into a predetermined specified format and a step of trying to detect information from the converted contents. When a plurality of specified formats are defined in advance and detection of the information from the converted contents fails, the contents is converted into another specified format and the information detection is retried.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.