Method of and device for X-ray processing

Details Method of and device for X-ray processing Method of and device for X-ray processing

1982-11-03

1985-03-26

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358138, 358166, 364724, 378 99, H04N 718

Patent

active

045076812

ABSTRACT:
The method and the device in accordance with the present invention utilizes a recursive filter for forming a composite image from a short series of X-ray images with the weighting factor .alpha. used in the filter being a function of the number of X-ray images processed and to be processed. When .alpha. is suitably chosen, the amplitude of the composite image is always constant, such as a constant image brightness, and each X-ray image makes an equally large contribution to the composite image. The noise level in the composite image decreases as the number of processed X-ray images is larger.

REFERENCES:
patent: 4149259 (1979-04-01), Kowalski
patent: 4350998 (1982-09-01), Verhoeven
patent: 4394684 (1983-07-01), Verhoeven

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