Method of and device for reducing artefacts in computed tomograp

Details Method of and device for reducing artefacts in computed tomograp Method of and device for reducing artefacts in computed tomograp

1978-12-04

1981-06-09

Wise, Edward J.

Boots, shoes, and leggings

250445T, G01N 2300

Patent

active

042728207

ABSTRACT:
A method of reducing artefacts in uncorrected images which are obtained by computer tomography and which consist of a reconstructed object image and an outer region which surrounds the object image. Image data in those elements of the outer region which are associated with a measuring path are used to derive error signals. The error signals are subtracted from the image data in elements of the uncorrected image in order to reduce artefacts which extend through the image in straight strips.

REFERENCES:
patent: 4070707 (1978-01-01), Barber
patent: 4135247 (1979-01-01), Gordon et al.
patent: 4144569 (1979-03-01), Wagner
patent: 4149081 (1979-10-01), Seppi

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