Method and system for providing image processing to track digital information
US8316238B2 · kind B2 · utility
15Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2006 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Feb 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9538
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An approach for tracking documents using image processing is disclosed. Auxiliary information corresponding to compressed digital information is extracted. The auxiliary information is used to output text lines, which undergo a hash function (e.g., checksum operation). In this manner, individual hash values are generated, as well as an overall hash value of the entire file of text lines. A reference set of hash values are maintained to identify other compressed digital information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.