Text image quality based feedback for improving OCR
US9317764B2 · kind B2 · utility
14Cited by
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28Claims
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device and method capture multiple images of a scene of real world at a several zoom levels, the scene of real world containing text of one or more sizes. Then the electronic device and method extract from each of the multiple images, one or more text regions, followed by analyzing an attribute that is relevant to OCR in one or more versions of a first text region as extracted from one or more of the multiple images. When an attribute has a value that meets a limit of optical character recognition (OCR) in a version of the first text region, the version of the first text region is provided as input to OCR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.