Scanning line filter
US3993888A · kind A · utility
23Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1974 |
| Grant date | Nov 23, 1976 |
| Priority date | — |
| Expiry date | Oct 29, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6826
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An image processing device for enhancing and digitizing images made up primarily of continuous parallel lines such as contour maps and fingerprints. An image is focused on a photodiode detector array and a digital logic signal is produced which is the binary representation of the portion of the image centered on the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.