Visilter et al., 1999 - Google Patents
Development of OCR system for portable passport and visa readerVisilter et al., 1999
- Document ID
- 1844501477059681136
- Author
- Visilter Y
- Zheltov S
- Lukin A
- Publication year
- Publication venue
- Document Recognition and Retrieval VI
External Links
Snippet
The modern passport and visa documents include special machine-readable zones satisfied the ICAO standards. This allows to develop the special passport and visa automatic readers. However, there are some special problems in such OCR systems: low resolution of …
- 230000018109 developmental process 0 title description 3
Classifications
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- G06K9/20—Image acquisition
- G06K9/32—Aligning or centering of the image pick-up or image-field
- G06K9/3233—Determination of region of interest
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- G06K9/62—Methods or arrangements for recognition using electronic means
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- G06K9/3283—Inclination (skew) detection or correction of characters or of image to be recognised of characters or characters lines
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- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
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- G06T2207/20112—Image segmentation details
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