Method of correcting radiation image read-out error

Details Method of correcting radiation image read-out error Method of correcting radiation image read-out error

1984-07-18

1987-02-10

Howell, Janice A.

Radiant energy

Automatic/serial detection of similar sources

2504841, G03G 516

Patent

active

046424628

ABSTRACT:
In a radiation image read-out system, a stimulable phosphor sheet carrying a radiation image stored therein is two-dimensionally scanned with stimulating rays, with the main scanning being effected by use of a multifaceted mirror having a plurality of deflecting surfaces. Light emitted by the stimulable phosphor sheet upon exposure to the stimulating rays is detected and converted into an electric image signal. When any of the deflecting surfaces is inclined from its predetermined position, the electric image signal obtained from the scan line drawn by the inclined deflecting surface becomes incorrect. The electric image signal obtained from the scan line drawn by the inclined deflecting surface is corrected by use of a correction coefficient which is predetermined for each deflecting surface according to the amount of inclination from the predetermined position thereof.

REFERENCES:
patent: 4195316 (1980-03-01), Sansome
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4318582 (1982-03-01), Minoura et al.
patent: 4404596 (1983-09-01), Juergensen et al.
patent: 4484073 (1984-11-01), Ohara et al.

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