Method of and apparatus for real-time high-speed inspection of objects for identifying or recognizing known and unknown portions thereof, including defects and the like
US4589140A · kind A · utility
113Cited by
3References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1983 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Mar 21, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure is concerned with real-time high-speed inspection of objects involving storing digital signal mask information of optical scans of objects at different magnifications, but with substantially the same field of view, and comparing digital mask information obtained by run scans of objects-to-be-inspected, at different magnifications, with the stored mask information to identify known or unknown portions of the objects, with adaptability for rapid "teaching" of large sets of objects for storage and subsequent comparison with real objects under inspection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.