Method of assigning direction code to boundary picture element in character recognition system
US4524454A · kind A · utility
23Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1982 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | Sep 14, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method applicable to a character recognition system is disclosed which assigns direction codes to a number of boundary picture elements contained in a two-level character pattern. The direction of connectivity of a boundary picture element observed is fractionized to minimize the error due to the quantization of the direction. The direction codes are converted into those which correspond to connectivity directions which should be finally grasped. Such direction codes allow strokes to be extracted quite faithfully to the original character pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.