Data processing apparatus for producing X-ray images with improved signal to noise ratio
US4618928A · kind A · utility
7Cited by
16References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1983 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Dec 5, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/3205
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An X-ray image data of a patient into which an X-ray contrast medium is being administered is processed in an X-ray image data processing apparatus so as to obtain the X-ray image data having an improved S/N ratio. The processing apparatus mainly comprises a linear differential filter that is composed of a plurality of multipliers and an adder. The X-ray image data is multiplied by a plurality of differential coefficients, and thereafter the results of these multiplications are summed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.