Patent ID: 8811709
Filing Date: 2014-08-19
Classification: A61B,G06T

Abstract:
1. A method comprising: acquiring projection data of an object from a plurality of pixels; reconstructing the acquired projection data from the plurality of pixels into a reconstructed image; performing material characterization and decomposition of an image volume of the reconstructed image to reduce a number of materials analyzed in the image volume to two basis materials; generating a re-mapped image volume for at least one basis material of the two basis materials; performing forward projection on at least the re-mapped image volume for the at least one basis material to produce a material-based projection; and generating multi-material corrected projections based on the material-based projection and a total projection attenuated by the scanned object, which represents both of the two basis materials, wherein the multi-material corrected projections comprise linearized projections; wherein the two basis materials comprise iodine and water, and the at least one basis material comprises iodine.