Character reading system
US4185271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1978 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Oct 2, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The character reading system is provided with a pretreating system for a pattern recognition and a picture translation wherein a pattern signal obtained by scanning a character pattern on a recording medium is processed at such high threshold level that does not contain a noise component to form a primary kernel pattern, and the pattern signal is processed at such low threshold level that contains said character pattern to obtain a reference pattern. The kernel pattern and the reference pattern are masked on a memory device to have predetermined size and subjected to connecting operation when they are read out by forward scanning to form a connected secondary kernel pattern. The secondary kernel pattern and the reference pattern are masked to have predetermined size and then reversely scanned to subject both patterns to the second connecting operation thereby producing a last kernel pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.