Method of processing radiographic image

Details Method of processing radiographic image Method of processing radiographic image

1980-07-11

1982-10-26

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

250337, 2504861, 364414, 364515, 378 98, G03C 516, G01T 111, H04N 140

Patent

active

043563988

ABSTRACT:
In a radiographic image recording system in which a stimulable phosphor plate is exposed to X-rays to record a radiographic latent image therein, the stimulable phosphor plate is exposed to stimulating rays thereafter to emit light according to the stored energy of X-rays, and the emitted light is detected by a photodetector and converted to an image signal to be used for finally recording a visible image on a photosensitive film or the like, a plurality of stimulable phosphor plates are used for recording radiographic images of an object viewed from the same direction. The image signals read out from the plurality of stimulable phosphor plates are superposed to obtain an averaged image signal. The averaged image signal is then subjected to a gradation process for enhancing the contrast of the image.

REFERENCES:
patent: 1609703 (1926-12-01), Eggert et al.
patent: 3975637 (1976-08-01), Ikedo et al.
"Improving Low-Illumination Video", NASA Tech. Briefs, Spring 1979, p. 18.

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