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Patent Agency Ranking
公开(公告)号：US20160171694A1
公开(公告)日：2016-06-16
申请号：US14964052
申请日：2015-12-09
Applicant: General Electric Company
Inventor： Bipul Das , Ajay Narayanan , Pratik Shah
CPC classification number: A61B6/505 , A61B6/032 , A61B6/501 , A61B6/5217 , G06T5/009 , G06T7/11 , G06T7/136 , G06T11/008 , G06T2207/10081 , G06T2207/30008
Abstract: A method includes receiving a monochromatic image comprising a head of a subject from a Computed Tomography (CT) scanner and detecting a petrous bone of the head in the monochromatic image. The method further includes determining a linear attenuation coefficient of at least one petrous voxel representing the petrous bone and calculating a mass attenuation coefficient of the petrous voxel based on the linear attenuation coefficient and a density of the petrous bone. The method also includes computing a monochromatic energy level of the monochromatic image based on the mass attenuation coefficient of the petrous voxel and recalibrating the monochromatic image corresponding to the computed monochromatic energy level to the desired monochromatic energy level.
Abstract translation: 一种方法包括从计算机断层摄影（CT）扫描器接收包括受试者的头部的单色图像，并检测单色图像中头部的石骨。 该方法还包括确定表示石质骨的至少一个石质体素的线性衰减系数，并且基于线性衰减系数和石蜡的密度来计算石质体素的质量衰减系数。 该方法还包括基于石墨体素的质量衰减系数来计算单色图像的单色能级，并将对应于所计算的单色能级的单色图像重新校准到期望的单色能级。
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公开(公告)号：US20150272527A1
公开(公告)日：2015-10-01
申请号：US14230852
申请日：2014-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ajay Narayanan , Bipul Das , Vignesh Thirukazhukundram Subrahmaniam
CPC classification number: A61B6/482 , A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/481 , A61B6/5205 , A61B6/5217 , A61B6/5258 , G06K9/46 , G06T5/009 , G06T5/50 , G06T7/0012 , G06T15/08 , G06T2207/10072 , G06T2207/10081 , G06T2207/10116 , G06T2207/20221 , G06T2207/30004
Abstract: Identification of an optimal monochromatic energy for displaying monochromatic images is disclosed. In certain embodiments, determination of an optimal monochromatic energy may be performed by generating histograms for various monochromatic images generated based on a set of acquired multi-energy projections and by evaluating the histogram dispersion for the respective histograms.
Abstract translation: 公开了用于显示单色图像的最佳单色能的识别。 在某些实施例中，可以通过生成基于所获取的多能量投影的集合生成的各种单色图像并通过评估各个直方图的直方图色散来执行最佳单色能量的确定。
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公开(公告)号：US09713452B2
公开(公告)日：2017-07-25
申请号：US14230852
申请日：2014-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ajay Narayanan , Bipul Das , Vignesh Thirukazhukundram Subrahmaniam
CPC classification number: A61B6/482 , A61B6/032 , A61B6/4035 , A61B6/4241 , A61B6/481 , A61B6/5205 , A61B6/5217 , A61B6/5258 , G06K9/46 , G06T5/009 , G06T5/50 , G06T7/0012 , G06T15/08 , G06T2207/10072 , G06T2207/10081 , G06T2207/10116 , G06T2207/20221 , G06T2207/30004
Abstract: Identification of an optimal monochromatic energy for displaying monochromatic images is disclosed. In certain embodiments, determination of an optimal monochromatic energy may be performed by generating histograms for various monochromatic images generated based on a set of acquired multi-energy projections and by evaluating the histogram dispersion for the respective histograms.
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公开(公告)号：US09652884B2
公开(公告)日：2017-05-16
申请号：US14961447
申请日：2015-12-07
Applicant: General Electric Company
Inventor： Bipul Das , Uday Damodar Patil , Ajay Narayanan , Naga Venkata Kartheek Medathati , Harshit Sureka
CPC classification number: G06T15/08 , G06K9/00248 , G06T7/11 , G06T2207/10081 , G06T2207/20164 , G06T2207/30008
Abstract: A method includes receiving a Computed Tomography (CT) image comprising a head of a subject from a CT scanner and detecting a first and a second petrous bone of the head in the CT image. The method further includes determining a nasion of the head in the CT image based on the first and the second petrous bone. The method also includes generating a reference plane of the head based on the nasion and the first and the second petrous bone.
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公开(公告)号：US09649083B2
公开(公告)日：2017-05-16
申请号：US14964052
申请日：2015-12-09
Applicant: General Electric Company
Inventor： Bipul Das , Ajay Narayanan , Pratik Shah
CPC classification number: A61B6/505 , A61B6/032 , A61B6/501 , A61B6/5217 , G06T5/009 , G06T7/11 , G06T7/136 , G06T11/008 , G06T2207/10081 , G06T2207/30008
Abstract: A method includes receiving a monochromatic image comprising a head of a subject from a Computed Tomography (CT) scanner and detecting a petrous bone of the head in the monochromatic image. The method further includes determining a linear attenuation coefficient of at least one petrous voxel representing the petrous bone and calculating a mass attenuation coefficient of the petrous voxel based on the linear attenuation coefficient and a density of the petrous bone. The method also includes computing a monochromatic energy level of the monochromatic image based on the mass attenuation coefficient of the petrous voxel and recalibrating the monochromatic image corresponding to the computed monochromatic energy level to the desired monochromatic energy level.
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