Patent Document ID: 20160012615
Application ID: 14330198
Patent Status: 0

Claim One:
1. A method comprising: acquiring imaging data of an object to be imaged from a computed tomography (CT) detector; reconstructing, with at least one processing unit, the acquired imaging data into an initial reconstruction image; performing, with the at least one processing unit, material characterization of an image volume of the initial reconstruction image to provide a re-mapped image volume from the initial reconstruction image; performing, with the at least one processing unit, forward projection on the re-mapped image volume to provide forward projection data; providing, with the at least one processing unit, an error projection based on the forward projection data; filtering at least one of: the initial reconstruction image, the re-mapped image volume provided by performing the material characterization of the image volume, wherein the filtering the re-mapped image volume is performed before performing the forward projection, the forward projection data provided by performing the forward projection on the re-mapped image volume, wherein the filtering the forward projection data is performed before applying the correction, or the error projection; and using the error projection to update the initial reconstruction image to provide an updated reconstruction image.