Method and apparatus for enhanced automatic determination of text line dependent parameters
US5513304A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 4, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Feb 4, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automatic character cell determining apparatus automatically determines the character cells within the text image of a document. A connected component generator means generates connected components from the pixels comprising the text image. An aligning device aligns skewed and warped lines to the proper image axes. A bounding box generator generates a bounding box surrounding each connected component. A character cell determining device for locating character cells including one or more connected components has a vertical splaying device and a horizontal splaying device for ensuring white spaces between lines and connected components, a vertical profile device for determining the vertical positions of a line, a splitting device for splitting ligatures of two or more connected components and a character cell generator for generating character cells grouping together one or more connected components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.