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公开(公告)号:US09585626B2
公开(公告)日:2017-03-07
申请号:US14567828
申请日:2014-12-11
Applicant: General Electric Company
Inventor: Hewei Gao , Tonghe Wang , Jiahua Fan , Guangzhi Cao
CPC classification number: A61B6/482 , A61B6/032 , A61B6/52 , G06T11/005 , G06T11/006 , G06T2211/408
Abstract: Various methods and systems for dual energy spectral computed tomography imaging are provided. In one embodiment, a method for dual energy imaging comprises generating an image from a higher energy dataset and an updated lower energy dataset, wherein the updated lower energy dataset comprises a combination of a lower energy dataset and a pseudo projection dataset generated from the higher energy dataset. In this way, a weak low energy signal may be recovered, thereby enabling image reconstruction in spite of photon starvation and sparse views.
Abstract translation: 提供了用于双能谱计算机断层摄影成像的各种方法和系统。 在一个实施例中,用于双能量成像的方法包括从较高能量数据集和更新的较低能量数据集生成图像,其中更新的较低能量数据集包括较低能量数据集和从更高能量产生的伪投影数据集的组合 数据集 以这种方式,可以恢复弱的低能量信号,从而使得尽管存在光子饥饿和稀疏视图的图像重建。
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公开(公告)号:US20160166221A1
公开(公告)日:2016-06-16
申请号:US14567828
申请日:2014-12-11
Applicant: General Electric Company
Inventor: Hewei Gao , Tonghe Wang , Jiahua Fan , Guangzhi Cao
CPC classification number: A61B6/482 , A61B6/032 , A61B6/52 , G06T11/005 , G06T11/006 , G06T2211/408
Abstract: Various methods and systems for dual energy spectral computed tomography imaging are provided. In one embodiment, a method for dual energy imaging comprises generating an image from a higher energy dataset and an updated lower energy dataset, wherein the updated lower energy dataset comprises a combination of a lower energy dataset and a pseudo projection dataset generated from the higher energy dataset. In this way, a weak low energy signal may be recovered, thereby enabling image reconstruction in spite of photon starvation and sparse views.
Abstract translation: 提供了用于双能谱计算机断层摄影成像的各种方法和系统。 在一个实施例中,用于双能量成像的方法包括从较高能量数据集和更新的较低能量数据集生成图像,其中更新的较低能量数据集包括较低能量数据集和从更高能量产生的伪投影数据集的组合 数据集 以这种方式,可以恢复弱的低能量信号,从而使得尽管存在光子饥饿和稀疏视图的图像重建。
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