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

G - Physics

01

N

358/11.1

G01N 23/04 (2006.01) G06K 9/36 (2006.01) G06T 11/00 (2006.01)

Patent

CA 1309514

13DV-9243 METHOD OF USING A PRIORI INFORMATION IN COMPUTERIZED TOMOGRAPHY ABSTRACT OF THE DISCLOSURE 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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