Digital fluoroscopy apparatus

Details Digital fluoroscopy apparatus Digital fluoroscopy apparatus

1984-09-20

1987-01-27

Goldberg, E. A.

Boots, shoes, and leggings

378 99, 358111, 128654, G06F 1542, G06G 760

Patent

active

046398678

ABSTRACT:
In a digital fluoroscopy apparatus, digital reference data is written in a given data position of digital image data where no medical information is contained. This digital reference data has contrast level information with respect to X-ray images of an object under examination. The image data having the reference data is stored in an analogue storage device after being D/A-converted. When the image signal having the D/A-converted reference data is again A/D-converted for the digital subtraction, the contrast level of the finally-A/D-converted reference data varies from that of the original reference data. The image data having the finally-A/D-converted reference data is corrected based upon the contrast level variation from the original level in an image data correction unit.

REFERENCES:
patent: 4204225 (1980-05-01), Mistretta
patent: 4204226 (1980-05-01), Mistretta et al.
patent: 4375068 (1983-02-01), McBride

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