Radiation field recognition method

Details Radiation field recognition method Radiation field recognition method

1988-03-30

1991-02-19

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 54, 2503272, 36441315, 36441316, 378 99, G06K 900

Patent

active

049950932

ABSTRACT:
A method of recognizing (distinguishing) a radiation field is provided for radiation image recording and reproducing systems that utilize stimulable phosphor sheets. With respect to the process of reproducing radiation image information stored on the phosphor sheet by scanning it with stimulating rays, such as laser light, the present method allows the radiation field on the sheet to be precisely distinguished, reducing the influence of undesirable stored image energy emissions from outside the prescribed region. This enables radiation images to be obtained that are more effective for diagnostic purposes. The method can also be applied for the recognition of irregularly shaped radiation fields, which hitherto has been extremely difficult.

REFERENCES:
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4527060 (1985-07-01), Suzuki et al.
patent: 4736399 (1988-04-01), Okazaki
patent: 4816676 (1989-03-01), Aagano
patent: 4816690 (1989-03-01), Adachi et al.
patent: 4829181 (1989-05-01), Shimura
patent: 4851678 (1989-07-01), Adachi et al.

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