Method and apparatus for separating document image object types
US6411733B1 · kind B1 · utility
35Cited by
18References
22Claims
0Family size
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Inventor
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/413
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided for segmenting a binary document image so as to assign image objects to one of three types: CHARACTER-type objects, STROKE-type objects, and LARGE-BITMAP-type objects. The method makes use of a contour tracing technique, statistical analysis of contour features, a thinning technique, and image morphology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.