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:
Oct. 19, 2021
Filed:
Aug. 05, 2020
Siemens Healthcare Gmbh, Erlangen, DE;
Frank Dennerlein, Forchheim, DE;
SIEMENS HEALTHCARE GMBH, Erlangen, DE;
Abstract
A computer-implemented method of deriving 3D image data of a reconstruction volume from a plurality of 2D projections by way of filtered back-projection is disclosed. An embodiment of the method includes receiving a plurality of 2D projections of an imaged object, each 2D projection corresponding to a projection plane; applying a filter to each of the 2D projections to yield filtered 2D projections; calculating a filtered back-projection density distribution from the filtered 2D projections; calculating at least one modified filtered back-projection density distribution indicative of outlier values included in the filtered 2D projections; and calculating a revised filtered back-projection density distribution as a weighted linear combination of the filtered back-projection density distribution and the at least one modified filtered back-projection density distribution.