Method for identifying marked images based at least in part on frequency domain coefficient differences
US7925080B2 · kind B2 · utility
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10References
35Claims
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Key dates
| Filing date | Jan 13, 2006 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Oct 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Briefly, in accordance with one embodiment, a method of identifying marked images based at least in part on frequency domain coefficient differences is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.