Character recognition method
US7324692B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 6, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Aug 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a character recognition apparatus, which comprises a background discriminating section, a non-character line discriminating section, a first non-character line removed image creating section that creates a first non-character line removed image, which is an original image from which the non-character line is removed, a first character area discriminating section, an enlarged image creating section, a second non-character line removed image creating section, an interference judgment section that judges whether or not the character and the non-character line interfere with each other in the original image, a character image restoring section that restores the character image, a second character area discriminating section, and a character recognizing section that digitizes the character area recognized by the second character area discriminating section and recognizes the character, thereby characters written on a color form are recognized at a high accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.