Butler, Anthony Philip Howard,Bateman, Christopher James,Butler, Philip Howard,Renaud, Peter Francis
申请号：
NZ73727116
公开号：
NZ737271A
申请日:
2016.04.20
申请国别(地区):
NZ
年份:
2019
代理人:
摘要：
Described is a computer-implemented method for identifying and/or quantifying, and presenting one or more materials represented by data produced by a multi-energy CT system using three or more energy bands, using a computer program product, the method comprising receiving, directly or indirectly, an image data set from a multi-energy CT system using three or more energy bands and storing said data on a data storage medium； calculating, for each of a plurality of reconstructed voxels contained within the data set, a sparse solution for a maximum number of material combinations using 0-norm minimisation using a processor； storing said sparse solutions on a data storage medium； applying rejection criteria to the sparse solutions to identify one or more materials； identifying combinations of materials pre-determined not to be found in the same voxel and rejecting said combinations and/or setting acceptable solution ranges for each material, and rejecting any sub-problem with a solution outside these ranges； and presenting the materials identified in via an interface. Also described are methods of identifying or quantifying specific materials using these methods.
