Radiant energy – Automatic/serial detection of similar sources
Patent
1986-09-25
1989-05-09
Howell, Janice A.
Radiant energy
Automatic/serial detection of similar sources
378175, H04N 532
Patent
active
048291820
ABSTRACT:
Disclosed is an X-ray image-processing apparatus which is used, for example for diagnosis of a blood vessel. The X-ray image-processing apparatus comprises a plate-type recording medium divided into at least two recording areas, moving apparatus for moving the plate-type recording medium to a first and second position directly below an X-ray incident opening in a frame, so that two X-ray images are recorded in two recording areas respectively, X-ray image input circuitry for reading, as electric signals, the two X-ray images recorded on the recording medium, input image memory for A/D (Analog/Digital) conversion of the output of the X-ray image input circuitry, and for storing the image in the form of digital signals, image separating circuits for separating the two X-ray images from the imput image memory, arithmetic logical operation circuits for subtracting the two X-ray images separated by the image separating circuits and for subtracting the desired image, and a display device for D/A (Digital/Analog) conversion of the image signals output from the output image memory, and for displaying the resultant image.
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patent: 3381128 (1968-04-01), Jimenez
patent: 3859527 (1975-01-01), Luckey
patent: 4485304 (1984-11-01), Teraoka et al.
patent: 4564861 (1986-01-01), Hishinuma et al.
patent: 4590517 (1986-05-01), Kato et al.
patent: 4683377 (1984-07-01), Hishinuma et al.
Hanig Richard
Howell Janice A.
Kabushiki Kaisha Toshiba
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