Area discrimination system for text image
US5613016A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1994 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Dec 28, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/414
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An area discrimination system discriminates areas from each other in a binary image. The system includes a reducing unit for reducing a binary image supplied from an external unit, a skew detector for detecting skew of the binary image with respect to a predetermined direction, an extracting unit for extracting black connected components from the reduced image, a block forming unit for forming blocks, each of which includes a plurality of black connected components close to each other, a first merging unit for merging blocks satisfying first conditions into a a character string by using of the skew detected by said skew detector, the first conditions including at least a condition depending on skew of the binary image, and a second merging unit for merging character strings satisfying second conditions into a column by using of the skew detected by said skew detector, the second conditions including at least a condition depending on skew of the binary image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.