Image enhancement
US4416538A · kind A · utility
11Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Dec 7, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/542
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image enhancement is achieved to increase the ability to distinguish details otherwise difficult to discern in bright and dark areas of a photorecord by reflecting light off surface perturbations on the record and displaying the reflected light by means of schlieren optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.