The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2002
Filed:
May. 10, 2000
Applicant:
Inventors:
Peter Willems, Stekene, BE;
Bart Vaessen, Breda, NL;
Piet Dewaele, Berchem, BE;
Yener Onel, Berlin, DE;
Uwe Ewert, Berlin, DE;
Assignee:
Agfa-Gevaert, Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 1/502 ;
U.S. Cl.
CPC ...
G01B 1/502 ;
Abstract
A digital representation of a radiation image of an at least partially tubular object is obtained. An attenuation profile over a tangentially imaged wall of the object is taken from the digital image on a straight line. The attenuation profile is reflected in the direction of the center of the object and the attenuation profile is reconstructed to form a relative density distribution by means of a transmission tomography-projection reconstruction method in which the measured reflected attenuation profile is used for all record annular positions.