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

1984-06-08

1985-11-05

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

250347, G03C 516

Patent

active

045516260

ABSTRACT:
In a radiation image read-out system, a stimulable phosphor sheet carrying a radiation image stored therein is scanned by stimulating rays in forward and backward main scanning directions by use of galvanometer mirrors. Light emitted from the stimulable phosphor sheet upon exposure to the stimulating rays is detected and converted into an electric image signal at each position on forward and backward scan lines. The electric image signal is corrected by use of a correction coefficient predetermined for each position on the scan lines in accordance with the deviation in position in a sub-scanning direction at each position on the scan lines, thereby correcting a read-out error in the image signal caused by distortion of the scan lines arising when the stimulable phosphor sheet is scanned by the stimulating rays in the forward and backward main scanning directions by use of the galvanometer mirrors.

REFERENCES:
patent: 4404596 (1983-09-01), Juergensen et al.
patent: 4484073 (1984-11-01), Ohara et al.

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