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81.发明授权Apparatus, methods, and computer programs for estimating and correcting scatter in digital radiographic and tomographic imaging 失效用于估计和校正数字放射照相和断层成像中的散射的装置，方法和计算机程序公开(公告)号：US06408049B1
公开(公告)日：2002-06-18
申请号：US09585786
申请日：2000-06-05
IPC分类号： H05G164
CPC分类号： G01T1/1648
摘要： An x-ray imaging system images an object by transmitting primary signals and includes a collimator placed between detectors of the x-ray imaging system. The collimator reduces respective scatter components of total signals including a primary signal component and a scatter signal component. One of the detectors detects the total signals, the collimator collimates the primary signals of the total signals focally aligned with the collimator and traveling through the one of the detectors, another of the detectors detects the collimated, primary signals. The x-ray imaging system reduces the scatter components of the total signals detected by the one of the detectors based on the detected, collimated signals and the corresponding, detected, total signals. In another aspect, a detector includes regions of reduced absorption.
摘要翻译： X射线成像系统通过发送主信号对物体进行成像，并且包括放置在x射线成像系统的检测器之间的准直器。 准直器减少总信号的各个散射分量，包括主信号分量和散射信号分量。 其中一个检测器检测总信号，准直器准直了与准直器对准的总信号的主信号，并且穿过检测器中的一个检测器，另一个检测器检测准直的主信号。 X射线成像系统基于检测到的准直信号和相应的检测到的总信号，减少由检测器中的一个检测的总信号的散射分量。 在另一方面，检测器包括吸收减小的区域。
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公开(公告)号：US06175615B1
公开(公告)日：2001-01-16
申请号：US09289819
申请日：1999-04-12
IPC分类号： G21K102
摘要： A collimator 100 for use in a radiation imaging system 10, and a method for making such collimators, are provided, wherein the collimator 100 is capable of collimating radiation in two orthogonal planes. The collimator in one embodiment includes a block 101 of radiation absorbing material having a plurality of focally aligned channels 102 extending therethrough; in a second embodiment, the collimator includes first and second collimation204, 212 sections having a respective first plurality of focally aligned plate sets 201 and a respective second plurality of focally aligned plate sets 203 disposed orthogonally to the first plurality of plate sets. The method for making the collimator includes generating a CAD drawing, generating from the CAD drawing one or more stereo-lithographic files, and using the stereo-lithographic files to control an electro-deposition machining machine which creates the channels in the block.
摘要翻译： 提供了一种用于辐射成像系统10的准直器100及其制造方法，其中准直仪100能够在两个正交平面中准直辐射。 在一个实施例中的准直器包括辐射吸收材料的块101，其具有延伸穿过其中的多个焦点对准的通道102; 在第二实施例中，准直器包括第一和第二准直204,212个部分，其具有相应的第一多个焦点对准的板组201和与第一组多个板组正交设置的相应的第二多个焦点对准的板组203。 制造准直器的方法包括生成CAD绘图，从CAD绘制一个或多个立体光刻文件，并使用立体光刻文件来控制在块中产生通道的电沉积加工机。
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83.发明授权Methods and apparatus for scanning an object in a computed tomography system 有权用于在计算机断层摄影系统中扫描物体的方法和装置公开(公告)号：US06175609B1
公开(公告)日：2001-01-16
申请号：US09295481
申请日：1999-04-20
IPC分类号： A61B603
CPC分类号： G01N23/046 , G01N2223/419
摘要： The present invention, in one form, is a system for reducing contribution of scatter signal to an image of an object constructed from projection data acquired during a computed tomography scan. The system includes an x-ray source which emits an x-ray beam toward a detector array. A collimator plate is movable with respect to the detector array. The system is configured to move the collimator between a first position and a second position. In the first and second positions, the collimator does not cover the detector array, i.e., the collimator does not collimate the x-ray beam impacting the detector array. When moving between the first and second positions, the collimator at least partially covers the detector array, i.e., the collimator at least partially collimates the x-ray beam impacting the detector array. A first signal intensity at the detector array is obtained when the collimator is in the first position and a second signal intensity at the detector array is obtained when the collimator is moved between the first and second position. The determined signal intensities are then utilized to determine the scatter signal of the x-ray beam and to generate substantially uncorrupted projection data.
摘要翻译： 本发明在一种形式中是用于减少散射信号对由在计算机断层摄影扫描期间获取的投影数据构成的物体的图像的贡献的系统。 该系统包括向检测器阵列发射X射线束的x射线源。 准直板相对于检测器阵列是可移动的。 该系统被配置为在第一位置和第二位置之间移动准直器。 在第一和第二位置中，准直器不覆盖检测器阵列，即准直器不准直影响检测器阵列的X射线束。 当在第一和第二位置之间移动时，准直器至少部分地覆盖检测器阵列，即准直器至少部分准直影响检测器阵列的X射线束。 当准直器处于第一位置时，当准直器在第一和第二位置之间移动时，在检测器阵列处获得第一信号强度并且在检测器阵列处获得第二信号强度。 然后利用确定的信号强度来确定x射线束的散射信号并产生基本上未损坏的投影数据。
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公开(公告)号：US08687768B2
公开(公告)日：2014-04-01
申请号：US12972231
申请日：2010-12-17
CPC分类号： H03K3/53 , H05G1/10 , Y10T307/872
摘要： Methods and systems for passive resonant voltage switching are provided. One passive resonant switching system includes a voltage switching system having one or more passive resonant modules to provide a switching voltage output. Each of the passive resonant modules include switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The passive resonant modules also include a capacitor connected to the one or more switching devices and configured to receive a system discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, and to be recharged when switching from the second to first voltage level. The passive resonant modules further include a resonant inductor and an additional switching device.
摘要翻译： 提供了无源谐振电压切换的方法和系统。 一个无源谐振开关系统包括具有一个或多个无源谐振模块以提供开关电压输出的电压开关系统。 无源谐振模块中的每一个包括被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出的开关装置。 无源谐振模块还包括连接到一个或多个开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收系统放电能量，并且当 从第二电压电平切换到第一电压电平。 无源谐振模块还包括谐振电感器和附加的开关装置。
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85.发明授权公开(公告)号：US08369674B2
公开(公告)日：2013-02-05
申请号：US12469121
申请日：2009-05-20
CPC分类号： G21K1/062 , B82Y10/00 , G02B5/0833 , G02B5/0883 , G02B5/0891 , G02B6/0283 , G02B6/03638 , G02B6/03661 , G02B6/03688 , G02B6/102 , G21K2201/064 , G21K2201/067
摘要： An optic device includes a multilayer zone forming a redirection section for redirecting and transmitting photons through total internal reflection, each multilayer zone including a high index material having a first real refractive index n1 and a first absorption coefficient β1, a low index material having a second real refractive index n2 and a second absorption coefficient β2, and a grading zone disposed between the high index material and the low index material and including a grading layer having a third real refractive index n3 and a third absorption coefficient β3, wherein n1>n3>n2.
摘要翻译： 光学器件包括形成重定向部分的多层区域，用于通过全内反射来重定向和传输光子，每个多层区域包括具有第一实际折射率n1和第一吸收系数bgr的高折射率材料; 1，具有 第二实际折射率n2和第二吸收系数bgr; 2以及设置在高折射率材料和低折射率材料之间的分级区，并且包括具有第三实际折射率n3和第三吸收系数＆lt; bgr 3的分级层 其中n1> n3> n2。
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公开(公告)号：US20120155614A1
公开(公告)日：2012-06-21
申请号：US12972231
申请日：2010-12-17
CPC分类号： H03K3/53 , H05G1/10 , Y10T307/872
摘要： Methods and systems for passive resonant voltage switching are provided. One passive resonant switching system includes a voltage switching system having one or more passive resonant modules to provide a switching voltage output. Each of the passive resonant modules include switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The passive resonant modules also include a capacitor connected to the one or more switching devices and configured to receive a system discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, and to be recharged when switching from the second to first voltage level. The passive resonant modules further include a resonant inductor and an additional switching device.
摘要翻译： 提供了无源谐振电压切换的方法和系统。 一个无源谐振开关系统包括具有一个或多个无源谐振模块以提供开关电压输出的电压开关系统。 无源谐振模块中的每一个包括被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出的开关装置。 无源谐振模块还包括连接到一个或多个开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收系统放电能量，并且当 从第二电压到第一电压电平。 无源谐振模块还包括谐振电感器和附加的开关装置。
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公开(公告)号：US20120155613A1
公开(公告)日：2012-06-21
申请号：US12972156
申请日：2010-12-17
CPC分类号： H02M7/10 , H02M3/337 , H02M2001/0058 , H05G1/10 , Y02B70/1433 , Y02B70/1491
摘要： Methods and systems for active resonant voltage switching are provided. One active resonant switching system includes a voltage switching system having one or more active resonant modules to provide a switching voltage output. Each of the resonant modules includes a plurality of switching devices configured to operate in open and closed states to produce first and second voltage level outputs from a voltage input. The resonant modules also include a capacitor connected to the switching devices and configured to receive a discharge energy during a resonant operating cycle when switching an output voltage from the first voltage level to the second voltage level, wherein the capacitor is further configured to restore system energy when switching from the second to first voltage level. The resonant modules further include a resonant inductor configured to transfer energy to and from the capacitor.
摘要翻译： 提供了主动谐振电压切换的方法和系统。 一个有源谐振开关系统包括具有一个或多个有源谐振模块以提供开关电压输出的电压切换系统。 每个谐振模块包括多个开关装置，其被配置为在打开和关闭状态下操作以从电压输入产生第一和第二电压电平输出。 谐振模块还包括连接到开关装置的电容器，并且被配置为在将输出电压从第一电压电平切换到第二电压电平时在谐振操作周期期间接收放电能量，其中电容器还被配置为恢复系统能量 当从第二电压电平切换到第一电压电平时。 谐振模块还包括被配置为将能量传递到电容器和从电容器传输能量的谐振电感器。
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公开(公告)号：US08045776B2
公开(公告)日：2011-10-25
申请号：US11714306
申请日：2007-03-06
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , A61B6/5258
摘要： A method is provided for processing an image. The method comprises identifying one or more contours or surfaces in a two-dimensional or three-dimensional image generated from a set of projection data. The set of projection data is differentially processed based on the identification of those data points that largely define one or more contours or surfaces. An enhanced image set is reconstructed from the set of processed projection data.
摘要翻译： 提供了一种处理图像的方法。 该方法包括识别从一组投影数据生成的二维或三维图像中的一个或多个轮廓或表面。 基于大量定义一个或多个轮廓或表面的那些数据点的识别，对该组投影数据进行差分处理。 从一组经处理的投影数据重建增强图像集。
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公开(公告)号：US20110206187A1
公开(公告)日：2011-08-25
申请号：US12710064
申请日：2010-02-22
申请人： Susanne Madeline Lee , Peter Michael Edic , Vanita Mani , Forrest Frank Hopkins , Eberhard Neuser
发明人： Susanne Madeline Lee , Peter Michael Edic , Vanita Mani , Forrest Frank Hopkins , Eberhard Neuser
CPC分类号： G21K1/067 , A61N5/1084 , B82Y10/00 , G21K1/062 , G21K2201/061 , G21K2201/064 , G21K2201/067
摘要： A system for producing at least one high flux photon beam is provided. The system includes two or more photon sources configured to produce photon beams, and at least one first stage optic device coupled to at least one of the photon sources and providing at least one focused photon beam through total internal reflection, wherein at least one of the photon beams and the focused photon beams are combined at a virtual focal spot.
摘要翻译： 提供了一种用于产生至少一个高通量光子束的系统。 该系统包括被配置为产生光子束的两个或更多个光子源，以及耦合到至少一个光子源的至少一个第一级光学器件，并且通过全内反射提供至少一个聚焦光子束，其中至少一个 光子束和聚焦光子束在虚拟焦斑处组合。
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公开(公告)号：US20110102430A1
公开(公告)日：2011-05-05
申请号：US12609071
申请日：2009-10-30
申请人： Jeffrey Wayne Eberhard , Peter Michael Edic , Bernhard Erich Hermann Claus , Robert August Kaucic
发明人： Jeffrey Wayne Eberhard , Peter Michael Edic , Bernhard Erich Hermann Claus , Robert August Kaucic
CPC分类号： G06T11/008 , G06T2211/436 , H04N2213/006
摘要： A method and system for presenting images of an object of interest is provided. The method includes producing one or more cine loops of images from at least one of multiple projection views or multiple reconstructed 3D images including a 3D volume obtained from one or more beamlines. The method also includes generating at least one combined image including a first component and a second component wherein the first component and the second component each include one of a baseline image or the one or more cine loops of images. The combined image is generated via at least one of superimposing the first component and the second component, displaying the first component adjacent to the second component, and toggling between the first component and the second component. The method also includes displaying the at least one combined image.
摘要翻译： 提供了一种用于呈现感兴趣对象的图像的方法和系统。 该方法包括从多个投影视图或多个重建3D图像中的至少一个生成包括从一个或多个光束线获得的3D体积的图像的一个或多个电影循环。 该方法还包括生成包括第一组件和第二组件的至少一个组合图像，其中第一组件和第二组件各自包括基线图像或图像的一个或多个电影循环之一。 组合图像通过叠加第一分量和第二分量中的至少一个产生，显示与第二分量相邻的第一分量，以及在第一分量与第二分量之间切换。 该方法还包括显示至少一个组合图像。
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