公开(公告)号：US20140185901A1

公开(公告)日：2014-07-03

申请号：US13730349

申请日：2012-12-28

申请人： GENERAL ELECTRIC COMPANY

发明人： Peter Michael Edic ,  Colin Richard Wilson ,  Jeffery Wayne Eberhard ,  Dan Xu

IPC分类号： G06F17/50 ,  G06T11/00

CPC分类号： G06T11/003 ,  G06T11/005 ,  G06T2211/408

摘要： An energy-sensitive system includes one or more processors configured to determine spectral attenuation curves for a first basis material and a second basis material, respectively. The one or more processors are configured to substitute a k-edge feature in the determined spectral attenuation curves with an approximation of the determined spectral attenuation curves lacking the k-edge feature. The one or more processors are also configured to construct a material decomposition model based on one of the determined or approximated first and second spectral attenuation curves. The one or more processors are additionally configured to decompose X-ray projection data into basis material projection data comprising first and second line integrals based, at least in part, on the model.

摘要翻译： 能量敏感系统包括一个或多个处理器，其被配置为分别确定第一基础材料和第二基础材料的光谱衰减曲线。 一个或多个处理器被配置为用确定的光谱衰减曲线中的k边缘特征代替所确定的缺少k边缘特征的光谱衰减曲线。 一个或多个处理器还被配置为基于确定的或近似的第一和第二光谱衰减曲线之一来构建材料分解模型。 一个或多个处理器还被配置为至少部分地基于模型将X射线投影数据分解成包括第一和第二线积分的基础材料投影数据。

公开(公告)号：US08885910B2

公开(公告)日：2014-11-11

申请号：US13730349

申请日：2012-12-28

申请人： General Electric Company

发明人： Peter Michael Edic ,  Colin Richard Wilson ,  Jeffery Wayne Eberhard ,  Dan Xu

IPC分类号： G06K9/00 ,  G06T11/00 ,  G06F17/50

CPC分类号： G06T11/003 ,  G06T11/005 ,  G06T2211/408

摘要： An energy-sensitive system includes one or more processors configured to determine spectral attenuation curves for a first basis material and a second basis material, respectively. The one or more processors are configured to substitute a k-edge feature in the determined spectral attenuation curves with an approximation of the determined spectral attenuation curves lacking the k-edge feature. The one or more processors are also configured to construct a material decomposition model based on one of the determined or approximated first and second spectral attenuation curves. The one or more processors are additionally configured to decompose X-ray projection data into basis material projection data comprising first and second line integrals based, at least in part, on the model.

摘要翻译： 能量敏感系统包括一个或多个处理器，其被配置为分别确定第一基础材料和第二基础材料的光谱衰减曲线。 一个或多个处理器被配置为用确定的光谱衰减曲线中的k边缘特征代替所确定的缺少k边缘特征的光谱衰减曲线。 一个或多个处理器还被配置为基于确定的或近似的第一和第二光谱衰减曲线之一来构建材料分解模型。 一个或多个处理器还被配置为至少部分地基于模型将X射线投影数据分解成包括第一和第二线积分的基础材料投影数据。