Optical character recognition method and apparatus
US5131053A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1988 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Aug 10, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for recognition of characters on a medium. The system includes a scanner for scanning a medium such as a page of printed text and graphics and producing a bit-mapped representation of the page. The bit-mapped representation of the page is then stored in a memory means such as the memory of a computer system. A processor processes the bit-mapped image to produce an output comprising coded character representation of the text on the page. The present invention discloses parsing a page to allow for production of the output characters in a logical sequence, a combination of feature detection methods and template matching methods for recognition of characters and a number of methods for feature detection such as use of statistical data and polygon fitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.