公开(公告)号：US07522756B2

公开(公告)日：2009-04-21

申请号：US11684176

申请日：2007-03-09

申请人： Clifford Bueno ,  Elizabeth Lokenberg Dixon ,  Walter Vincent Dixon ,  Forrest Frank Hopkins ,  Michael Robert Hopple ,  Brian Walter Lasiuk ,  Ronald Cecil McFarland ,  August David Matula ,  Robert James Mitchell, Jr. ,  Kevin Layne Moermond ,  Gregory Alan Mohr

发明人： Clifford Bueno ,  Elizabeth Lokenberg Dixon ,  Walter Vincent Dixon ,  Forrest Frank Hopkins ,  Michael Robert Hopple ,  Brian Walter Lasiuk ,  Ronald Cecil McFarland ,  August David Matula ,  Robert James Mitchell, Jr. ,  Kevin Layne Moermond ,  Gregory Alan Mohr

IPC分类号： G06K9/00

CPC分类号： G06T5/009 ,  A61B6/583 ,  G01N2223/42 ,  G06T1/20 ,  G06T2200/24 ,  G06T2207/10116

摘要： A method, system and apparatus for processing a radiographic image of a scanned object is disclosed. A pixel offset correction is performed in integer format on the radiographic image using saturation arithmetic to produce an image in integer format with any negative corrected values clipped to a value of zero. The resulting pixels are converted to floating point format and the converted pixels are multiplied by a gain factor. Optionally the resulting pixels are recursively averaged with previous results. The resulting pixels are converted to integer format and the converted pixel values are clamped to a maximum value using saturation arithmetic. Non-functional pixel correction is performed in integer format and the resulting pixel values are clamped to a maximum value using saturation arithmetic. An optional processing path replaces the recursive average by a linear average. The resulting pixel values are optionally filtered to enhance features of interest. The resulting pixel value is mapped in integer format to a palette index to establish an output pixel intensity having one of many intensity levels. The optional processing is controlled through the hardware interface of a real-time image controller as images are acquired.

摘要翻译： 公开了一种用于处理扫描对象的放射线图像的方法，系统和装置。 使用饱和运算在放射线照相图像上以整数格式执行像素偏移校正，以产生整数格式的图像，任何负校正值被削减到零值。 将所得到的像素转换为浮点格式，并将转换的像素乘以增益因子。 可选地，所得到的像素与先前的结果递归地平均。 所得到的像素被转换为整数格式，并且使用饱和运算将转换的像素值钳位到最大值。 以整数格式执行非功能像素校正，并且使用饱和算术将所得到的像素值钳位到最大值。 可选的处理路径将递归平均值替换为线性平均值。 所得到的像素值可选地被过滤以增强感兴趣的特征。 将所得到的像素值以整数格式映射到调色板索引，以建立具有许多强度级别之一的输出像素强度。 当获取图像时，通过实时图像控制器的硬件接口来控制可选处理。

公开(公告)号：US20080298545A1

公开(公告)日：2008-12-04

申请号：US11756144

申请日：2007-05-31

申请人： Clifford Bueno ,  Joseph Bendahan ,  Elizabeth Lokenberg Dixon ,  Clarence Lavere Gordon, III ,  William Robert Ross ,  Donald Earl Castleberry ,  Forrest Frank Hopkins ,  Douglas Albagli

发明人： Clifford Bueno ,  Joseph Bendahan ,  Elizabeth Lokenberg Dixon ,  Clarence Lavere Gordon, III ,  William Robert Ross ,  Donald Earl Castleberry ,  Forrest Frank Hopkins ,  Douglas Albagli

IPC分类号： G01N23/04

CPC分类号： G01V5/0016 ,  G01V5/0025 ,  G01V5/0041

摘要： A cargo container inspection radiation detector apparatus is disclosed. The apparatus includes a support, and a plurality of area radiation detectors disposed upon the support arranged corresponding to a height of the cargo container, each area radiation detector comprising an active area defined by a matrix of pixels.

摘要翻译： 公开了一种集装箱检验放射线检测装置。 该装置包括一个支撑件，以及多个区域辐射检测器，其布置在对应于货物集装箱的高度布置的支撑件上，每个区域辐射检测器包括由像素矩阵定义的有效区域。

公开(公告)号：US07215732B2

公开(公告)日：2007-05-08

申请号：US10955623

申请日：2004-09-30

申请人： Zhye Yin ,  Jong Chul Ye ,  Francis Howard Little ,  Forrest Frank Hopkins ,  Michael Chunhe Gong ,  Yanfeng Du

发明人： Zhye Yin ,  Jong Chul Ye ,  Francis Howard Little ,  Forrest Frank Hopkins ,  Michael Chunhe Gong ,  Yanfeng Du

IPC分类号： A61B6/00

CPC分类号： G06T5/10 ,  G06T11/005 ,  G06T11/006 ,  G06T2211/421

摘要： A method for reconstructing image data from measured sinogram data acquired from a CT system is provided. The CT system is configured for industrial imaging. The method includes pre-processing the measured sinogram data. The pre-processing includes performing a beam hardening correction on the measured sinogram data and performing a detector point spread function (PSF) correction and a detector lag correction on the measured sinogram data. The pre-processed sinogram data is reconstructed to generate the image data.

摘要翻译： 提供了一种用于从CT系统获取的测量的正弦图数据重建图像数据的方法。 CT系统配置为工业成像。 该方法包括预处理测得的正弦图数据。 预处理包括对测量的正弦图数据执行光束硬化校正，并对测量的正弦图数据执行检测器点扩展函数（PSF）校正和检测器滞后校正。 重建预处理的正弦图数据以生成图像数据。

公开(公告)号：US07214947B2

公开(公告)日：2007-05-08

申请号：US11090675

申请日：2005-03-25

申请人： Clifford Bueno ,  Forrest Frank Hopkins ,  Scott Stephen Zelakiewicz ,  Clarence Lavere Gordon, III

发明人： Clifford Bueno ,  Forrest Frank Hopkins ,  Scott Stephen Zelakiewicz ,  Clarence Lavere Gordon, III

IPC分类号： G01T1/20

CPC分类号： G01T1/2018 ,  H01L27/14658

摘要： A detector assembly including a radiation conversion layer directly coupled to a pixel array is provided. The radiation conversion layer is adapted to receive radiation passing through an object. The pixel array is adapted for receiving one of a plurality of signals representative of the radiation passing through the object or the corresponding optical signals from an optional intermediate light production layer and further configured for generating a corresponding image of the object.

摘要翻译： 提供了包括直接耦合到像素阵列的辐射转换层的检测器组件。 辐射转换层适于接收通过物体的辐射。 像素阵列适于接收表示穿过物体的辐射的多个信号中的一个或来自可选的中间光产生层的相应的光信号，并进一步被配置为产生对象的相应图像。

公开(公告)号：US20110299653A1

公开(公告)日：2011-12-08

申请号：US12969350

申请日：2010-12-15

申请人： Debasish Mishra ,  William Robert Ross ,  Forrest Frank Hopkins ,  Kristopher John Frutschy ,  Clifford Bueno

发明人： Debasish Mishra ,  William Robert Ross ,  Forrest Frank Hopkins ,  Kristopher John Frutschy ,  Clifford Bueno

IPC分类号： A61B6/03 ,  H05G1/60

CPC分类号： G01N23/02 ,  A61B6/4028 ,  G01N23/044 ,  G01N2223/419 ,  H01J2235/068

摘要： Imaging systems including a multiple focal spot x-ray source adapted to irradiate an object with a series of angularly displaced x-ray beams, one at a time, without substantial rotation or translation of the multiple focal spot x-ray source are provided. Such systems also includes a detector adapted to receive at least a fraction of the angularly displaced x-ray beams after being attenuated by the object to produce at least two x-ray projection images of the object. The imaging systems also include a processor adapted to shift and add the at least two x-ray projection images to bring at least two planes of the object into focus, one at a time.

摘要翻译： 提供了包括多焦点X射线源的成像系统，其适于用一系列角度位移的x射线束照射物体，一次一个，而不会使多焦点x射线源基本上旋转或平移。 这样的系统还包括一个检测器，适于在物体被衰减后接收角位移的x射线束的至少一部分，以产生物体的至少两个x射线投影图像。 成像系统还包括适于移动和添加至少两个X射线投影图像以使对象的至少两个平面成为焦点的处理器，一次一个。

公开(公告)号：US07809103B2

公开(公告)日：2010-10-05

申请号：US11756027

申请日：2007-05-31

申请人： Yanfeng Du ,  Forrest Frank Hopkins ,  Joseph Bendahan

发明人： Yanfeng Du ,  Forrest Frank Hopkins ,  Joseph Bendahan

IPC分类号： G01N23/087

CPC分类号： G01N23/09

摘要： Disclosed herein is a method for detecting high atomic number elements in an article by using radiation having two different energies. The detecting of high atomic number elements can be accomplished by using an algorithm, curve fitting or using a data table. Disclosed herein too is a radiation system that uses the aforementioned method for detecting high atomic number elements.

摘要翻译： 本文公开了一种通过使用具有两种不同能量的辐射来检测物品中的高原子数元素的方法。 高原子数元素的检测可以通过使用算法，曲线拟合或使用数据表来完成。 这里也公开了使用上述检测高原子数元素的方法的辐射系统。

公开(公告)号：US20080298546A1

公开(公告)日：2008-12-04

申请号：US11756201

申请日：2007-05-31

申请人： Clifford Bueno ,  Joseph Bendahan ,  Elizabeth Lokenberg Dixon ,  Clarence Lavere Gordon, III ,  William Robert Ross ,  Donald Earl Castleberry ,  Forrest Frank Hopkins ,  Douglas Albagli ,  Robert August Kaucic, Jr. ,  William Macomber Leue

发明人： Clifford Bueno ,  Joseph Bendahan ,  Elizabeth Lokenberg Dixon ,  Clarence Lavere Gordon, III ,  William Robert Ross ,  Donald Earl Castleberry ,  Forrest Frank Hopkins ,  Douglas Albagli ,  Robert August Kaucic, Jr. ,  William Macomber Leue

IPC分类号： G01N23/04

CPC分类号： G01V5/0016 ,  G01V5/0025 ,  G01V5/0041

摘要： A method of improving a signal to noise ratio of an image data set of a cargo container is disclosed. The method includes transmitting a radiation beam toward the cargo container, detecting the transmitted radiation beam via a plurality of area radiation detectors, each area radiation detector comprising an active area defined by a matrix of pixels, thereby defining enhanced radiation data, processing the enhanced radiation data and reconstructing the image data set representative of contents of the cargo container, combining image attributes of the image data set to improve the signal to noise ratio, thereby defining an enhanced image data set, and displaying on a display the enhanced image data set comprising an improved signal to noise ratio.

摘要翻译： 公开了一种提高货物集装箱的图像数据组的信噪比的方法。 该方法包括向货物集装箱传送辐射束，经由多个区域辐射检测器检测透射的辐射束，每个区域辐射检测器包括由像素矩阵定义的有效区域，从而限定增强的辐射数据，处理增强辐射 数据和重建代表货物集装箱内容的图像数据集合，组合图像数据集的图像属性以提高信噪比，由此定义增强图像数据集，并在显示器上显示增强图像数据集，其包括 提高信噪比。

公开(公告)号：US07236564B2

公开(公告)日：2007-06-26

申请号：US11519271

申请日：2006-09-12

申请人： Forrest Frank Hopkins ,  Andrew Joseph Galish ,  William Robert Ross

发明人： Forrest Frank Hopkins ,  Andrew Joseph Galish ,  William Robert Ross

IPC分类号： G01N23/04

CPC分类号： G01T1/2018

摘要： A linear array detector (LAD) for scanning an object is provided. The detector includes a scintillator layer configured for generating a number of optical signals representative of a fraction of an incident X-ray beam passing through the object. The plane of the scintillator is parallel to the X-ray beam. The LAD further includes a two dimensional array of photo-conversion elements configured to receive several X-rays of the X-ray beams and configured to generate corresponding electrical signals. An arrangement of the photo-conversion elements is independent of the X-ray paths.

摘要翻译： 提供了一种用于扫描物体的线性阵列检测器（LAD）。 检测器包括闪烁体层，其被配置为产生表示穿过物体的入射X射线束的分数的多个光信号。 闪烁体的平面平行于X射线束。 LAD还包括被配置为接收X射线束的多个X射线并且被配置为产生相应的电信号的光转换元件的二维阵列。 光转换元件的布置与X射线路径无关。

公开(公告)号：US07065234B2

公开(公告)日：2006-06-20

申请号：US10784099

申请日：2004-02-23

申请人： Yanfeng Du ,  Forrest Frank Hopkins

发明人： Yanfeng Du ,  Forrest Frank Hopkins

IPC分类号： G06K9/00

CPC分类号： G06T11/005 ,  A61B6/5282

摘要： A method of correcting scatter includes obtaining a voxellized representation of a 3D image of an object from a plurality of projection data. A single scatter profile for the object is calculated using the voxellized representation of the 3D image of the object. A total scatter profile for the object is determined using the single scatter profile and an adjustment factor and the projection data is corrected using the total scatter profile to obtain a scatter corrected projection data. A beam hardening correction method includes simulating a number of attenuation data for an x-ray spectrum, at least one object material, and a detector spectral response. A function is fitted to the attenuation data to obtain an attenuation curve. A number of projection data for an object are corrected using the attenuation curve to obtain a number of beam hardening corrected projection data. A corrected image of the object is reconstructed from the beam hardening corrected image data.

摘要翻译： 校正散射的方法包括从多个投影数据获得对象的3D图像的体素化表示。 使用对象的3D图像的体素化表示来计算对象的单个散点图。 使用单个散射曲线和调整因子确定对象的总散射曲线，并且使用总散射曲线校正投影数据以获得散射校正的投影数据。 光束硬化校正方法包括模拟用于X射线光谱，至少一种物体材料和检测器光谱响应的多个衰减数据。 对衰减数据拟合一个函数以获得衰减曲线。 使用衰减曲线来校正用于对象的多个投影数据，以获得多个光束硬化校正投影数据。 从光束硬化校正图像数据重建对象的校正图像。

公开(公告)号：US06826255B2

公开(公告)日：2004-11-30

申请号：US10400177

申请日：2003-03-26

申请人： Thomas William Birdwell ,  Forrest Frank Hopkins

发明人： Thomas William Birdwell ,  Forrest Frank Hopkins

IPC分类号： H01J3530

CPC分类号： H01J35/30 ,  H01J35/24

摘要： An X-ray inspection system is provided comprising an X-ray source which includes an electron gun and beam steering means for alternately directing the electron beam from the gun in a first direction wherein the beam strikes the anode to produce a beam of X-rays which exits the X-ray source, and in a second direction wherein no significant X-ray flux exits the X-ray source. An X-ray detector and means for reading the detector are also provided. The beam steering means and the detector reading means are coordinated so that the detector output is read during a period when no significant X-ray flux exits the source. A method for operating the X-ray inspection system is also provided.

摘要翻译： 提供一种X射线检查系统，其包括X射线源，其包括电子枪和光束操纵装置，用于在第一方向上交替地引导来自枪的电子束，其中光束撞击阳极以产生X射线束 其离开X射线源，并且在没有显着X射线通量离开X射线源的第二方向上。 还提供了用于读取检测器的X射线检测器和装置。 协调光束转向装置和检测器读取装置，使得在没有显着的X射线通量离开源的期间读取检测器输出。 还提供了用于操作X射线检查系统的方法。