Stereo X-ray subtraction apparatus

Details Stereo X-ray subtraction apparatus Stereo X-ray subtraction apparatus

1984-10-12

1987-04-14

Howell, Janice A.

X-ray or gamma ray systems or devices

Specific application

Stereoscopy

378 99, 358111, A61B 602, H05G 164, H04N 532

Patent

active

046584102

ABSTRACT:
A stereo X-ray subtraction apparatus has a stereo X-ray system and an X-ray image intensifier television chain in which, for each channel, the video signals of successive stereo partial images are summed in a weighted fashion in a first image memory, the output of the first image memory being supplied to a first input of a first subtraction stage, with the output of the first image memory in the other channel being supplied to a second input of the first subtraction stage, the output of the first subtraction stage being supplied to a second image memory and to a first input of a second subtraction stage, and the output of the second image memory being supplied to a second input of the second subtraction stage. The outputs of the second subtraction stages for each channel are supplied to a display unit for displaying the resulting stereo image.

REFERENCES:
patent: 4064530 (1977-12-01), Kaiser et al.
patent: 4350998 (1982-09-01), Verhoeven
patent: 4507681 (1985-03-01), Verhoeven et al.
patent: 4578802 (1986-03-01), Itoh

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