Model-based method of document logical structure recognition in OCR systems
US8260049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/416
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the invention provides a method for determining a logical structure of a document. The method comprises generating at least one document hypothesis for the whole document; for each document hypothesis, verifying said document hypothesis including (a) generating at least one block hypothesis for each block in the document based on the document hypothesis; and (b) selecting a best block hypothesis for each block; selecting as a best document hypothesis the document hypothesis that has the best degree of correspondence with the selected best block hypotheses for the document; and forming the document based on the best document hypothesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.