| 发明名称 |
Systems and methods for X-ray imaging |
| 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. |
| 申请公布号 |
US8885910(B2) |
申请公布日期 |
2014.11.11 |
| 申请号 |
US201213730349 |
申请日期 |
2012.12.28 |
| 申请人 |
General Electric Company |
发明人 |
Edic Peter Michael;Wilson Colin Richard;Eberhard Jeffery Wayne;Xu Dan |
| 分类号 |
G06K9/00;G06T11/00;G06F17/50 |
主分类号 |
G06K9/00 |
| 代理机构 |
|
代理人 |
McCarthy Robert M. |
| 主权项 |
1. An energy-sensitive system, comprising:
one or more processors configured to:
determine spectral attenuation curves for a first basis material and a second basis material, respectively;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;construct a material decomposition model based on one of the determined or approximated first and second spectral attenuation curves; anddecompose X-ray projection data into basis material projection data comprising first and second line integrals based, at least in part, on the model. |
| 地址 |
Niskayuna NY US |
