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公开(公告)号：US09164045B2
公开(公告)日：2015-10-20
申请号：US14233050
申请日：2012-07-19
CPC分类号： G01N23/04 , A61B6/4291 , A61B6/484 , A61B6/5205 , G01N23/046 , G01N2223/419
摘要： A method of phase imaging uses X-ray beams having edges overlapping with pixels. A phase image may be obtained from first and second images using one or more X-ray beam, the first image being measured with the first edge but not the second edge of each X-ray beam overlapping the corresponding pixel(s) and the second image being measured with the second edge but not the first edge overlapping the corresponding pixel(s). The gradient of the X-ray absorption function may be calculated and a proportional term included in the image processing to calculate a quantitative phase image.
摘要翻译： 相位成像的方法使用具有与像素重叠的边缘的X射线束。 可以使用一个或多个X射线束从第一和第二图像获得相位图像，第一图像是用第一边缘测量的，而不是每个X射线束的第二边缘与相应的像素重叠，而第二个 用第二边缘测量的图像，但不是第一边缘与相应的像素重叠。 可以计算X射线吸收函数的梯度，并且在图像处理中包括比例项以计算定量相位图像。
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公开(公告)号：US20140233699A1
公开(公告)日：2014-08-21
申请号：US14233050
申请日：2012-07-19
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , A61B6/4291 , A61B6/484 , A61B6/5205 , G01N23/046 , G01N2223/419
摘要： A method of phase imaging uses X-ray beams having edges overlapping with pixels. A phase image may be obtained from first and second images using one or more X-ray beam, the first image being measured with the first edge but not the second edge of each X-ray beam overlapping the corresponding pixel(s) and the second image being measured with the second edge but not the first edge overlapping the corresponding pixel(s). The gradient of the X-ray absorption function may be calculated and a proportional term included in the image processing to calculate a quantitative phase image.
摘要翻译： 相位成像的方法使用具有与像素重叠的边缘的X射线束。 可以使用一个或多个X射线束从第一和第二图像获得相位图像，第一图像是用第一边缘测量的，而不是每个X射线束的第二边缘与相应的像素重叠，而第二个 用第二边缘测量的图像，但不是第一边缘与相应的像素重叠。 可以计算X射线吸收函数的梯度，并且在图像处理中包括比例项以计算定量相位图像。
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公开(公告)号：US09171650B2
公开(公告)日：2015-10-27
申请号：US14233188
申请日：2012-07-19
CPC分类号： G21K1/06 , A61B6/4233 , A61B6/4291 , A61B6/484 , A61B6/585 , A61B6/587 , G01N23/04 , G01N23/20075 , G01N2223/313 , G01N2223/401
摘要： A method of aligning masks for phase imaging or phase contrast imaging in X-ray apparatus using a pixel-type X-ray detector makes use of non-idealities of all real detectors. A mask may be provided before the sample to generate beams, adjacent to the pixels of the detector or both. The method includes moving the mask into a plurality of translational position increments and identifying the increment for which the intensity has a maximum or minimum. The identified value of the increment may vary over the pixels of the detector. Alignment positions are selected in which steps in a plot of the increment over the area of the detector are minimized and/or aligned with the rows and columns of pixels.
摘要翻译： 使用像素型X射线检测器在X射线设备中对准用于相位成像或相位对比成像的掩模的方法利用了所有真实检测器的非理想性。 可以在样品之前提供掩模以产生与检测器的像素相邻的光束或两者。 该方法包括将掩模移动到多个平移位置增量中并且识别强度具有最大或最小值的增量。 增量的识别值可以在检测器的像素上变化。 选择对准位置，其中在检测器的区域上的增量的图中的步骤被最小化和/或与像素的行和列对准。
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公开(公告)号：US20140233697A1
公开(公告)日：2014-08-21
申请号：US14233188
申请日：2012-07-19
CPC分类号： G21K1/06 , A61B6/4233 , A61B6/4291 , A61B6/484 , A61B6/585 , A61B6/587 , G01N23/04 , G01N23/20075 , G01N2223/313 , G01N2223/401
摘要： A method of aligning masks for phase imaging or phase contrast imaging in X-ray apparatus using a pixel-type X-ray detector makes use of non-idealities of all real detectors. A mask may be provided before the sample to generate beams, adjacent to the pixels of the detector or both. The method includes moving the mask into a plurality of translational position increments and identifying the increment for which the intensity has a maximum or minimum. The identified value of the increment may vary over the pixels of the detector. Alignment positions are selected in which steps in a plot of the increment over the area of the detector are minimised and/or aligned with the rows and columns of pixels.
摘要翻译： 使用像素型X射线检测器在X射线设备中对准用于相位成像或相位对比成像的掩模的方法利用了所有真实检测器的非理想性。 可以在样品之前提供掩模以产生与检测器的像素相邻的光束或两者。 该方法包括将掩模移动到多个平移位置增量中并且识别强度具有最大或最小值的增量。 增量的识别值可以在检测器的像素上变化。 选择对准位置，其中在检测器的区域上的增量的图中的步骤被最小化和/或与像素的行和列对准。
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公开(公告)号：US08811570B2
公开(公告)日：2014-08-19
申请号：US13500198
申请日：2010-10-08
申请人： Robert Speller , Caroline Reid
发明人： Robert Speller , Caroline Reid
CPC分类号： G01T1/1603
摘要： An X-ray inspection system is mounted around conveyor (2). An X-ray source (12) and a number of X-ray detectors record X-ray images of an object (8) such as baggage moving along the conveyor. A visual recordal system (18,22) tracks the motion of the object along the conveyor to identify the location and orientation of the object as it moves along the conveyor. A tomosynthesis image of the object is calculated from the plurality of X-ray images using the location and orientation information from the visual recordal system.
摘要翻译： X射线检查系统安装在输送机（2）周围。 X射线源（12）和多个X射线检测器记录物体（8）的X射线图像，诸如沿着输送机移动的行李。 视觉记录系统（18,22）沿着输送机跟踪物体的运动，以便在物体沿输送机移动时识别物体的位置和方位。 使用来自视觉记录系统的位置和取向信息，从多个X射线图像计算物体的断层合成图像。
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公开(公告)号：US20080232550A1
公开(公告)日：2008-09-25
申请号：US11801782
申请日：2007-05-11
申请人： Robert Speller , Gary Royle
发明人： Robert Speller , Gary Royle
摘要： A method and an arrangement for an intelligent adaptive x-ray imaging system, in which the exposure conditions of the object to x-rays is dynamically controlled and optimized in real-time in order to provide the optimum diagnostic information. The arrangement splits the imaging beam into two separate fan beams that scan over the object in a single pass, where the first beam (scout) collects information from the object, that is analyzed to control the intensity or spectral quality or spatial distribution of the second beam (I-ImaS). The CMOS image sensors deployed in the arrangement are able to process detected information either on-chip or within a field programmable gate array, so as to compute a measure related to the diagnostic value of the information.
摘要翻译： 一种用于智能自适应X射线成像系统的方法和装置，其中物体对X射线的曝光条件被动态地控制和实时优化，以便提供最佳的诊断信息。 该装置将成像光束分成两个单独的扇形光束，该扇形光束以单次扫描在物体上，其中第一光束（球探）收集来自物体的信息，其被分析以控制第二光束的强度或光谱质量或空间分布 光束（I-ImaS）。 部署在该装置中的CMOS图像传感器能够处理片上或现场可编程门阵列中的检测信息，以便计算与信息的诊断值相关的度量。
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公开(公告)号：US09012855B2
公开(公告)日：2015-04-21
申请号：US14240795
申请日：2012-08-30
申请人： Robert Speller
发明人： Robert Speller
CPC分类号： G01T1/2006 , G01T1/2002 , G01T1/2023 , G01T1/2907 , G01T7/00
摘要： A radiation detector includes a scintillator crystal (2) in the form of a slab mounted to be rotated by a drive (4) in a housing (8). A photon detector (6) detects photons emitted by the crystal (2). The crystal (2) is rotated to a number of measurement angles and the radiation emitted by a radiation source determined by counting the photons detected by the photon detector. This is used to determine the direction towards the radiation source.
摘要翻译： 放射线检测器包括呈平板形式的闪烁体晶体（2），所述闪烁体晶体安装成由壳体（8）中的驱动器（4）旋转。 光子检测器（6）检测由晶体（2）发射的光子。 晶体（2）旋转到多个测量角度，并且由辐射源发射的辐射通过对由光子检测器检测到的光子进行计数来确定。 这用于确定朝向辐射源的方向。
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公开(公告)号：US20140224994A1
公开(公告)日：2014-08-14
申请号：US14240795
申请日：2012-08-30
申请人： Robert Speller
发明人： Robert Speller
CPC分类号： G01T1/2006 , G01T1/2002 , G01T1/2023 , G01T1/2907 , G01T7/00
摘要： A radiation detector includes a scintillator crystal (2) in the form of a slab mounted to be rotated by a drive (4) in a housing (8). A photon detector (6) detects photons emitted by the crystal (2). The crystal (2) is rotated to a number of measurement angles and the radiation emitted by a radiation source determined by counting the photons detected by the photon detector. This is used to determine the direction towards the radiation source.
摘要翻译： 放射线检测器包括呈平板形式的闪烁体晶体（2），所述闪烁体晶体安装成由壳体（8）中的驱动器（4）旋转。 光子检测器（6）检测由晶体（2）发射的光子。 晶体（2）旋转到多个测量角度，并且由辐射源发射的辐射通过对由光子检测器检测到的光子进行计数来确定。 这用于确定朝向辐射源的方向。
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公开(公告)号：US20120224666A1
公开(公告)日：2012-09-06
申请号：US13500198
申请日：2010-10-08
申请人： Robert Speller , Caroline Reid
发明人： Robert Speller , Caroline Reid
IPC分类号： G01N23/04
CPC分类号： G01T1/1603
摘要： An X-ray inspection system is mounted around conveyor (2). An X-ray source (12) and a number of X-ray detectors record X-ray images of an object (8) such as baggage moving along the conveyor. A visual recordal system (18,22) tracks the motion of the object along the conveyor to identify the location and orientation of the object as it moves along the conveyor. A tomosynthesis image of the object is calculated from the plurality of X-ray images using the location and orientation information from the visual recordal system.
摘要翻译： X射线检查系统安装在输送机（2）周围。 X射线源（12）和多个X射线检测器记录物体（8）的X射线图像，诸如沿着输送机移动的行李。 视觉记录系统（18,22）沿着输送机跟踪物体的运动，以便在物体沿输送机移动时识别物体的位置和方位。 使用来自视觉记录系统的位置和取向信息，从多个X射线图像计算物体的断层合成图像。
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公开(公告)号：US07664227B2
公开(公告)日：2010-02-16
申请号：US11801782
申请日：2007-05-11
申请人： Robert Speller , Gary Royle
发明人： Robert Speller , Gary Royle
IPC分类号： A61B6/00
摘要： A method and an arrangement for an intelligent adaptive x-ray imaging system, in which the exposure conditions of the object to x-rays is dynamically controlled and optimized in real-time in order to provide the optimum diagnostic information. The arrangement splits the imaging beam into two separate fan beams that scan over the object in a single pass, where the first beam (scout) collects information from the object, that is analyzed to control the intensity or spectral quality or spatial distribution of the second beam (I-ImaS). The CMOS image sensors deployed in the arrangement are able to process detected information either on-chip or within a field programmable gate array, so as to compute a measure related to the diagnostic value of the information.
摘要翻译： 一种用于智能自适应X射线成像系统的方法和装置，其中物体对X射线的曝光条件被动态地控制和实时优化，以便提供最佳的诊断信息。 该装置将成像光束分成两个单独的扇形光束，该扇形光束以单次扫描在物体上，其中第一光束（球探）收集来自物体的信息，其被分析以控制第二光束的强度或光谱质量或空间分布 光束（I-ImaS）。 部署在该装置中的CMOS图像传感器能够处理片上或现场可编程门阵列中的检测信息，以便计算与信息的诊断值相关的度量。
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