Device for and method of X-ray image processing

Details Device for and method of X-ray image processing Device for and method of X-ray image processing

1982-08-26

1984-08-28

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

364414, 378 99, H04N 718

Patent

active

044686978

ABSTRACT:
A device for and method of X-ray processing in which a constant adjustable signal value is subtracted from a video signal of an X-ray image in order to correct the video signal for the effects of inherent scatter. The adjustable signal value depends on the X-ray tube voltage, the nature of the object to be examined, the field size etc. so that it is preferably dependent on the X-ray exposure parameters. The video signal is preferably converted into a logarithmic value by means of a logarithmic table which is dependent on the adjustable signal value (or actually on the exposure parameters).

REFERENCES:
patent: 4367490 (1983-01-01), Riederer
patent: 4375068 (1983-02-01), McBride
patent: 4393402 (1983-07-01), Keyes

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