Forensic verification from halftone images
US9361514B2 · kind B2 · utility
2Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Feb 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3235
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A forensic verification system (900) extracts a print signature via a print signature extractor (910) from a captured image of a printed halftone. The system (900) utilizes a comparator (920) to compare the print signature to a reference signature stored in a registry to determine differences between the print signature and the reference signature. The system (900) utilizes a forensic analyzer (930) to perform a forensic analysis on the signatures based on the comparison to authenticate the printed halftone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.