Radiation image processing method which increase and decreases a

Details Radiation image processing method which increase and decreases a Radiation image processing method which increase and decreases a

1994-03-28

1996-02-20

Couso, Jose L.

Image analysis

Applications

Biomedical applications

G06K 900

Patent

active

054936225

ABSTRACT:
A method of reproducing a radiographic image of a subject includes processing radiographic image signals which indicates a signal level corresponding to an amount of radioactive rays transmitted through each portion of the subject. The method compresses a signal level range of a part of the low frequency region of the radiographic image signals and expands a signal level range of another part of the low frequency region of the radiographic image signals, thereby obtaining image signals that are usable to reproduce the radiographic image.

REFERENCES:
patent: 3859527 (1975-01-01), Luckey
patent: 5301107 (1994-04-01), Shimura
patent: 5319719 (1994-06-01), Nakazawa et al.
patent: 5345513 (1994-09-01), Takeda et al.
patent: 5357549 (1994-10-01), Maack et al.
patent: 5368033 (1994-11-01), Moshfeghi
patent: 5369572 (1994-11-01), Haraki et al.

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