Radiant energy – Automatic/serial detection of similar sources
Patent
1986-10-09
1989-02-21
Howell, Janice A.
Radiant energy
Automatic/serial detection of similar sources
2504841, G01N 2304, H04N 530
Patent
active
048067598
ABSTRACT:
In a method of adjusting read-out conditions for a radiation image stored on a stimulable phosphor sheet by limiting the irradiation field, digital image signals at respective positions on the stimulable phosphor sheet are detected from image information obtained by preliminary read-out. A difference image constituted by difference values between the digital image signals is created and scanned in one direction to detect a section intecepted between a difference value not smaller than a threshold value +Th and a difference value not larger than -Th on each scanning line. Or, the difference image is scanned in two or more directions to detect a range comprising a group of the intercepted sections on scanning lines in each of the scanning directions. The read-out conditions in final read-out are adjusted based on the preliminary read-out image information within the section on each scanning line or within an irradiation field region determined based on the ranged detected in the respective scanning directions.
REFERENCES:
patent: 4074231 (1978-02-01), Yajima et al.
patent: 4360883 (1982-11-01), Ejiri et al.
patent: 4437122 (1984-03-01), Walsh et al.
patent: 4519041 (1985-05-01), Fant et al.
patent: 4564861 (1986-01-01), Hishinuma et al.
Jackson, P. "Image Contract Enhance by Local Max & Local Min. Operations", IBM Tech Dis Bull, vol. 24, #12 May 1982.
Fuji Photo Film Co. , Ltd.
Hanig Richard
Howell Janice A.
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