Device for reducing faults in layer images of a three-dimensiona

Details Device for reducing faults in layer images of a three-dimensiona Device for reducing faults in layer images of a three-dimensiona

1980-11-03

1985-05-07

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

364414, 378 25, 378901, 382 54, 382 56, G06K 900

Patent

active

045162611

ABSTRACT:
A device for reducing artefacts in layer images. Several layer images are formed of an object layer by irradiation from different directions. The same points of these layer images are compared in order to obtain a corrected layer image: when corresponding image information is present in all image points compared, the image information is transferred to corresponding layer image points in a corrected layer image; when the image information in the compared image points is not the same, that information is at least partly suppressed.

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patent: 4223384 (1980-09-01), Hounsfield et al.
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patent: 4298944 (1981-11-01), Stoub et al.
patent: 4322808 (1982-03-01), Weiss
patent: 4323973 (1982-04-01), Greenfield
patent: 4335427 (1982-06-01), Hunt et al.

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