X-ray diagnostics installation with spatial frequency filtering
US5091925A · kind A · utility
18Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Oct 26, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An x-ray diagnostics installation has an x-ray tube and an image processing and display system which includes a video camera connected to the x-ray image intensifier, an image memory, a spatial frequency filter and a monitor. A motion detector is connected to the image memory and to the video camera and controls operation of the spatial frequency filter to vary the filter effect so that the filter effect is greater in transillumination image regions having little motion than in regions having a higher amount of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.