Digital imaging system with grey scale setting, especially for t

Details Digital imaging system with grey scale setting, especially for t Digital imaging system with grey scale setting, especially for t

1987-02-25

1989-05-02

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

358111, H05G 164

Patent

active

048274925

ABSTRACT:
Digital imaging system wherein a digital value is assigned to each point or zone of the image, and this value is transformed in such a way that only a range or window of values representing luminances for a display device is selected. Control means are provided to modify the two parameters which characterize the window in the transforming device.
Since the system is designed to form images of one and the same category, for example X-rays of blood vessels, a pre-determined relationship is established between the two characteristic parameters of the window so that this window can be modified by actuating a single setting element.

REFERENCES:
patent: 4204225 (1980-05-01), Mistretta
patent: 4231065 (1980-10-01), Fitch et al.
patent: 4438495 (1984-05-01), Collins et al.
patent: 4595949 (1986-06-01), Fenster et al.
patent: 4688175 (1987-08-01), Kaneko et al.

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