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:
Dec. 27, 1994
Filed:
Nov. 24, 1992
Karl Wiesent, Erlangen, DE;
Ernstpeter Ruehrnschopf, Erlangen, DE;
Johannes Ebersberger, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A computer tomography apparatus has an anode in the form of a partial ring along which a focus is electronically moved to generate a scan beam from different directions, and a partial ring detector which generates a number of data sets from the attenuated radiation at the different directions, includes a computer wherein the data sets are weighted independently of the measured values so that image reconstruction can be undertaken with a standard computer tomography method, such as convolution and back-projection. The weighting is selected so that the boundaries of regions having constant values represent smooth curves in the sinogram. The image can thereby be reconstructed without complementary interpolation, which is normally required in computer tomography systems having a partial ring x-ray source and detector.