Radiological system with control of the modulation transfer func

Details Radiological system with control of the modulation transfer func Radiological system with control of the modulation transfer func

1994-06-20

1995-08-22

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 987, 348227, 348602, H05G 164

Patent

active

054447550

ABSTRACT:
A radiological system, wherein x-ray images (radiation images) are produced and are converted, through a video chain, for display as a video image, the system having a modulation transfer function, has the capability of influencing the modulation transfer function dependent on ambient light which is present at the display. To that end, a control unit is provided which provides two-dimensional control of the modulation transfer function dependent on illumination which is present in the environment of the display. The control is effected by means of a two-dimensional spatial frequency filter.

REFERENCES:
patent: 4589022 (1986-05-01), Prince et al.
patent: 5091925 (1992-02-01), Haendle et al.

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