公开(公告)号：US20130208850A1

公开(公告)日：2013-08-15

申请号：US13766239

申请日：2013-02-13

申请人： L-3 Communications Security and Detection Systems, Inc.

发明人： Michael H. Schmitt

IPC分类号： G01N23/20

CPC分类号： G01N23/201 ,  G01N23/20 ,  G01N23/203 ,  G01N2223/051 ,  G01N2223/054

摘要： Radiation is directed at an object, and radiation scattered by the object is sensed. An angular distribution of scatter in the sensed scattered radiation relative to a path of the radiation directed at the object is determined, and the angular distribution is evaluated. One or more atomic numbers, or effective atomic numbers, of materials composing the object is determined based on evaluating the angular distribution.

公开(公告)号：US08457273B2

公开(公告)日：2013-06-04

申请号：US13022122

申请日：2011-02-07

申请人： Andrew Dean Foland

发明人： Andrew Dean Foland

IPC分类号： G01N23/04

CPC分类号： G01V5/0016 ,  G01T1/2985 ,  G01V5/005 ,  G06T7/00

摘要： A volumetric image of a space is acquired from an imaging system. The space includes an object of interest and another object, and the volumetric image includes data representing the object of interest and the other object. A two-dimensional radiograph of the space is acquired from the imaging system. The two-dimensional radiograph of the space includes data representing the object of interest and the other object. The two-dimensional radiograph and the volumetric image are compared at the imaging system. A two-dimensional image is generated based on the comparison. The generated two-dimensional image includes the object of interest and excludes the other object.

摘要翻译： 从成像系统获取空间的体积图像。 空间包括感兴趣的对象和另一个对象，并且体积图像包括表示感兴趣对象的数据和另一个对象。 从成像系统获取空间的二维X射线照片。 空间的二维X射线照片包括表示感兴趣对象的数据和另一个对象。 在成像系统中比较二维X射线照片和体积图像。 基于比较生成二维图像。 生成的二维图像包括感兴趣的对象，并排除另一个对象。

公开(公告)号：US08401270B2

公开(公告)日：2013-03-19

申请号：US12484709

申请日：2009-06-15

申请人： Richard F. Eilbert ,  David Perticone ,  Shuanghe Shi ,  Jeff Stillson

发明人： Richard F. Eilbert ,  David Perticone ,  Shuanghe Shi ,  Jeff Stillson

IPC分类号： G06K9/00

CPC分类号： G01V5/0033 ,  G01V5/0041

摘要： A first image including a projection of a portion is generated based on data representing attenuation of higher-energy radiation having a peak energy of at least 1 MeV that passes through a portion of an inspection volume. A second image including a projection of the portion is generated based on data representing attenuation of lower-energy radiation passing through the portion of the inspection volume. A dual-pixel image is created from the first image and the second image. A region of interest is selected from the dual-pixel image. A first basis function that is derived from an attenuation characteristic associated with the region of interest is selected. The region of interest is represented in terms of an amplitude associated with the first basis function and an amplitude associated with the second basis function.

摘要翻译： 基于表示通过检查体积的一部分具有至少1MeV的峰值能量的较高能量辐射的衰减的数据产生包括部分投影的第一图像。 基于表示通过检查体积的部分的较低能量辐射的衰减的数据产生包括该部分的投影的第二图像。 从第一图像和第二图像创建双像素图像。 从双像素图像中选择感兴趣区域。 选择从与感兴趣区域相关联的衰减特性导出的第一基函数。 感兴趣区域以与第一基函数相关联的幅度和与第二基函数相关联的幅度表示。

公开(公告)号：US08270565B2

公开(公告)日：2012-09-18

申请号：US12776042

申请日：2010-05-07

申请人： Boris Oreper

发明人： Boris Oreper

IPC分类号： G01N23/04

CPC分类号： G03B42/02 ,  A61B6/03 ,  A61B6/4028 ,  A61B6/4266 ,  A61B6/4488 ,  A61B6/482 ,  G01V5/0041 ,  G01V5/0058

摘要： A dual energy inspection system that generates X-rays with an electron beam scanned over targets. A switchable voltage source that can be change its voltage output may cause X-rays to be generated at different energies. This X-ray generation subsystem is controlled by a sequencer that provides beam steering and shaping control inputs that may be dependent on the voltage provided by the voltage source. In another aspect, the dual energy inspection system may use multiple types of detectors, each sensitive to X-rays of a different energy. A relatively small number of detectors sensitive to one energy level is provided. Nonetheless, dual energy measurements may be made on objects within an item under inspection by identifying points that, for each object of interest, provide a low interference path to one of those detectors. Measurements made with radiation emanating from those points are used for dual energy analysis of those objects.

摘要翻译： 一种双能量检测系统，可以在目标上扫描电子束产生X射线。 可以改变其电压输出的可切换电压源可能导致在不同能量下产生X射线。 该X射线发生子系统由定序器控制，其提供可能取决于电压源提供的电压的波束导向和整形控制输入。 在另一方面，双能量检查系统可以使用多种类型的检测器，每种检测器对不同能量的X射线敏感。 提供了对一个能量级别敏感的相对较少数量的检测器。 然而，可以通过识别对于每个感兴趣对象提供到这些检测器中的一个的低干扰路径的点来对被检查项目内的对象进行双能量测量。 使用从这些点发出的辐射进行的测量用于这些物体的双能量分析。

公开(公告)号：US20120195458A1

公开(公告)日：2012-08-02

申请号：US13364182

申请日：2012-02-01

申请人： Andrew D. Foland ,  Boris Oreper ,  Vitaliy Ziskin

发明人： Andrew D. Foland ,  Boris Oreper ,  Vitaliy Ziskin

IPC分类号： G06K9/36

CPC分类号： G06T11/006 ,  G06T2211/421 ,  G06T2211/424

摘要： A system and method for forming volumetric images of an imaged object based on multiple radiation measurements of the object taken from different angles. A first volumetric image of the object may be calculated using a direct reconstruction method from a plurality of radiation measurements of the object. At least one iteration of an iterative reconstruction method may be performed to compute a second volumetric image of the object. The iterative reconstruction method may be initialized with the first volumetric image of the object.

摘要翻译： 基于从不同角度拍摄的物体的多个辐射测量来形成成像对象的体积图像的系统和方法。 可以使用来自物体的多个辐射测量的直接重建方法来计算物体的第一体积图像。 可以执行迭代重建方法的至少一次迭代以计算对象的第二体积图像。 可以用对象的第一体积图像来初始化迭代重建方法。

公开(公告)号：US20120119103A1

公开(公告)日：2012-05-17

申请号：US13361060

申请日：2012-01-30

申请人： David Perticone ,  Vitaliy Ziskin

发明人： David Perticone ,  Vitaliy Ziskin

IPC分类号： G01T1/16

CPC分类号： H05H3/06 ,  G01V5/0091 ,  H05H6/00

摘要： Fissionable materials are distinguished from other high-effective atomic number materials by producing dual-energy x-ray radiation sufficient to cause fission in fissionable materials and directing the dual-energy x-ray radiation sufficient to cause fission in fissionable materials towards a physical region. X-ray radiation and a product of fission from the physical region are sensed. An absorption of the dual-energy x-ray radiation by the physical region is determined based on the sensed x-ray radiation, and whether the physical region includes fissionable material is determined based on the presence of a product of fission.

摘要翻译： 可裂变材料与其他高效原子序列材料不同，是通过产生足以在可裂变材料中引起裂变的双能X射线辐射，并引导足够的双能量x射线辐射使可裂变材料分裂成物理区域。 感测X射线辐射和物理区域的裂变产物。 基于感测的X射线辐射来确定物理区域的双能X射线辐射的吸收，以及基于裂变产物的存在来确定物理区域是否包括可裂变材料。

公开(公告)号：US20110261929A1

公开(公告)日：2011-10-27

申请号：US13176176

申请日：2011-07-05

申请人： Ronald Steven McNabb, JR. ,  Nicholas Danvers Penrose Gillett

发明人： Ronald Steven McNabb, JR. ,  Nicholas Danvers Penrose Gillett

IPC分类号： G01N23/04 ,  G01N23/201

CPC分类号： G01T7/005 ,  A61B6/483 ,  G01N23/04 ,  G01N23/20083 ,  G01V5/0016

摘要： An object within a region is exposed to a first beam of penetrating radiation. The first beam of penetrating radiation is sensed on a side opposite the region from a source of the first beam. An attenuation of the first beam caused by passing the first beam through the object is determined, the attenuation is compared to a threshold attenuation. If the attenuation exceeds the threshold attenuation, a parameter of a second of beam of penetrating radiation is adjusted based on the determined attenuation.

摘要翻译： 区域内的物体暴露于第一穿透辐射束。 第一束穿透辐射在与第一光束的源相反的一侧被感测。 确定通过使第一光束通过物体而导致的第一光束的衰减，将衰减与阈值衰减进行比较。 如果衰减超过阈值衰减，则根据所确定的衰减来调整穿透辐射束的第二束参数。

公开(公告)号：US20110186739A1

公开(公告)日：2011-08-04

申请号：US13021194

申请日：2011-02-04

申请人： Andrew D. Foland ,  Richard Franklin Eilbert ,  Michael R. Gambini ,  Nicholas Danvers Penrose Gillett ,  Ronald S. McNabb ,  Boris Oreper ,  David Perticone ,  Vitaliy Ziskin

发明人： Andrew D. Foland ,  Richard Franklin Eilbert ,  Michael R. Gambini ,  Nicholas Danvers Penrose Gillett ,  Ronald S. McNabb ,  Boris Oreper ,  David Perticone ,  Vitaliy Ziskin

IPC分类号： G01N23/04

CPC分类号： G01V5/0008

摘要： Apparatus for scanning large cargo to detect concealed contents include a mobile platform configured to carry and position at least one X-ray or gamma-ray source and at least one detector array at a plurality of positions with respect to a stationary cargo. The detector array may be mounted on a boom moveably affixed to the mobile platform. Multiple measurements of radiation passing through the cargo for various source-detector orientations can be used to compute volumetric images of concealed content within the cargo.

摘要翻译： 用于扫描大货物以检测隐藏内容物的装置包括移动平台，该移动平台被配置为在相对于静止货物的多个位置处运送和定位至少一个X射线或γ射线源和至少一个检测器阵列。 检测器阵列可以安装在可移动地固定到移动平台上的吊杆上。 用于各种源 - 检测器取向的通过货物的辐射的多次测量可用于计算货物内的隐藏内容的体积图像。

公开(公告)号：US07903781B2

公开(公告)日：2011-03-08

申请号：US12434440

申请日：2009-05-01

申请人： Andrew Dean Foland ,  Boris Oreper

发明人： Andrew Dean Foland ,  Boris Oreper

IPC分类号： G01F1/66

CPC分类号： A61N5/1048 ,  A61N2005/1061 ,  A61N2005/1087

摘要： A distribution of heavy particle stopping power is be determined. A distribution of effective atomic number of a three-dimensional space is accessed, and a distribution of an x-ray stopping power of the three-dimensional space is accessed. A conversion is applied to the distribution of the effective atomic number and the distribution of x-ray stopping power. A distribution of the heavy particle stopping power of the three-dimensional space is generated based on the conversion, the heavy particle stopping power being an indication of a depth of penetration for a heavy particle incident on the three-dimensional space.

摘要翻译： 确定重粒子停止功率的分布。 访问三维空间的有效原子数的分布，并且访问三维空间的x射线停止力的分布。 A转换用于有效原子序数的分布和x射线阻止力的分布。 基于转换，产生三维空间的重粒子停止力的分布，重粒子停止力表示入射到三维空间上的重粒子的穿透深度。

公开(公告)号：US07889113B2

公开(公告)日：2011-02-15

申请号：US10962693

申请日：2004-10-12

申请人： Apostle G. Cardiasmenos ,  Paul J. DeLia

发明人： Apostle G. Cardiasmenos ,  Paul J. DeLia

IPC分类号： G01S13/04 ,  G01S13/88 ,  G01S13/89 ,  G01S13/00

CPC分类号： G01V8/005 ,  G01N21/3581 ,  G01N22/00 ,  G01S13/887 ,  G01S13/89

摘要： An inspection system that can detect contraband items concealed on, in or beneath an individual's clothing. The system employs millimeter wave radiation to detect contraband items. The system is described in connection with a check point security system that includes temperature controlled walls to enhance imaging of contraband items. Also, a millimeter wave camera is used in conjunction with a visible light camera that forms images. To address privacy concerns of displaying images of people made with millimeter wave cameras that effectively “see through” clothes, the millimeter wave images are not displayed directly. Rather, computer processing produces indications of suspicious items from the underlying raw millimeter wave images. The indications of suspicious items are overlaid on the image formed by the visible light camera.

摘要翻译： 一个检测系统，可以检测隐藏在个人服装上或之下的违禁品。 该系统采用毫米波辐射检测违禁物品。 该系统与包括温度控制壁的检查点安全系统相结合来描述，以增强违禁物品的成像。 另外，毫米波摄像机与形成图像的可见光相机结合使用。 为了解决显示使用毫米波相机制作的人的图像的隐私问题，它们有效地“透过”衣服，毫米波图像不会直接显示。 相反，计算机处理从下面的原始毫米波图像产生可疑物品的指示。 可疑物品的指示覆盖在由可见光摄像机形成的图像上。