Geometric pre-correction for automatic license plate recognition
US9020200B2 · kind B2 · utility
2Cited by
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18Claims
0Family size
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Key dates
| Filing date | Jun 12, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/63
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for adjusting a license plate that is detected in a captured image includes automatically determining at least one set of correction parameters corresponding to a slant-oriented license plate. The method further includes receiving an input image representing a detected license plate. In response to receiving the input image, the method includes automatically adjusting the input image to obtain a corrected image using the at least one set of correction parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.