Method for determining lines of character images for use in an optical reader
US5093868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1990 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining lines of character images in a recognition area for use in an optical character reader. In the line determining method, the character images in the recognition area are read by an image scanner so as to obtain image data of the character images in the recognition area. A circumscribed rectangular frame for enclosing each character is then determined based on the obtained image data so as to obtain coordinates of the circumscribed rectangular frame. Thereafter, circumscribed rectangular frames adjacent in a direction of the lines to each circumscribed rectangular frame are determined so as to obtain a connection relationship between the circumscribed rectangular frames as seen from each circumscribed rectangular frame, and then, the lines are determined based on the obtained connection relationship between the circumscribed rectangular frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.