Method of using a priori information in computerized tomography

Details Method of using a priori information in computerized tomography Method of using a priori information in computerized tomography

1988-08-01

1990-11-06

Lall, Parshotam S.

Boots, shoes, and leggings

364560, 36441321, 358 96, 378 21, 378901, G06F 1520, G01N 2304

Patent

active

049691104

ABSTRACT:
To improve computerized tomography (CT) imaging quality, a priori information of the test object is developed by probing the surfaces thereof at a multiplicity of points sufficient to spatially locate and define the envelope of the test object cross section to be imaged. A CT scan of the test object is then performed, and the CT image reconstructed therefrom is corrected with this a priori information. To expedite a priori information development, the convex hull of the test object is constructed from X-ray projection data and fitted with the probe developed measurement data to define the cross section envelope.

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patent: 4384209 (1983-05-01), Wagner et al.
patent: 4506327 (1985-03-01), Tam
patent: 4582993 (1986-04-01), Bhattacharya et al.
patent: 4672650 (1987-06-01), Masanobu

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