Method of character recognition in written document
US11151402B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | May 17, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Aug 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for recognizing characters in an image of a document having at least one alphanumeric field. The method includes the steps of enhancing an image contrast to highlight the characters in the image; detecting contours of objects in the image to create a mask that highlights the characters; segmenting the image using a tree with connected components and applying the mask thereto in order to extract the characters from the image; performing a character recognition on the extracted objects. A device for implementing the method.
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