Optical character recognition
US8953885B1 · kind B1 · utility
10Cited by
11References
20Claims
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Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing optical character recognition. In one aspect, a method includes receiving a text image I. A set of feature functions are evaluated for a log linear model to determine respective feature values for the text image I, wherein each feature function hi maps the text image I to a feature value, and wherein each feature function hi is associated with a respective feature weight λi. A transcription {circumflex over (T)} is determined that minimizes a cost of the log linear model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.