X-Ray diagnostic installation for providing subtraction images

Details X-Ray diagnostic installation for providing subtraction images X-Ray diagnostic installation for providing subtraction images

1981-04-09

1983-08-09

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358167, 378 99, H04N 532

Patent

active

043982131

ABSTRACT:
In an exemplary embodiment, video images from a television pickup device corresponding to the x-ray images are supplied to an image store and to a difference stage for the purpose of providing subtraction images through difference formation from the stored and the current video signal. The difference stage is connected with a first adder which in turn is connected with a second image store, whose output signal is supplied to a first adder, so that the image point data of the difference stage are summed in the second image store. The output signal of the second image store is supplied to the monitor.

REFERENCES:
patent: 4204225 (1980-05-01), Mistretta
patent: 4204226 (1980-05-01), Mistretta et al.
patent: 4296436 (1981-10-01), Achiha
patent: 4337514 (1982-06-01), Faureau et al.
patent: 4345314 (1982-08-01), Melamud et al.

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