Pattern detecting method and apparatus
US4955062A · kind A · utility
93Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Jul 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/73
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pattern detecting method for accurately detecting the position of a center of an image of a pattern is disclosed. The method includes the steps of forming an image of a pattern on an image pickup device, dividing the image of the pattern into plural portions and detecting the center of the image of the pattern in each portion, and determining the position of the center of the image of the pattern, on the basis of the data obtained by the detection made with regard to each portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.