System and methods for comparing documents
US7715045B2 · kind B2 · utility
6Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Dec 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/194
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes scanning a page of a paper document to generate a first digital page image. The method further includes obtaining a second digital page image which corresponds to a second page. The method also includes comparing the first digital page image pixel-by-pixel with the second digital page image to generate a score that indicates a degree to which the first digital page image differs from the second digital page image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.