Device, method and computer program for detecting characters in an image
US8538157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2007 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for detecting characters in an image includes a Hough transformer implemented to identify, as identified elements of writing, circular arcs or elliptical arcs in the image or in a preprocessed version of the image. The device further includes a character description generator implemented to obtain, on the basis of the identified circular arcs or elliptical arcs, a character description which describes locations of the identified circular arcs or elliptical arcs. In addition, the device includes a database comparator implemented to compare the character description with a plurality of comparative character descriptions which have character codes associated with them, so as to provide, as a result of the comparison, a character code of a detected character.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.