公开(公告)号：US20070034805A1

公开(公告)日：2007-02-15

申请号：US11519271

申请日：2006-09-12

Applicant: Forrest Hopkins ,  Andrew Galish ,  William Ross

Inventor： Forrest Hopkins ,  Andrew Galish ,  William Ross

IPC: G01N23/04 ,  G01T1/20

CPC classification number: G01T1/2018

Abstract: 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.

公开(公告)号：US20060067461A1

公开(公告)日：2006-03-30

申请号：US10955623

申请日：2004-09-30

Applicant: Zhye Yin ,  Jong Ye ,  Francis Little ,  Forrest Hopkins ,  Michael Gong ,  Yanfeng Du

Inventor： Zhye Yin ,  Jong Ye ,  Francis Little ,  Forrest Hopkins ,  Michael Gong ,  Yanfeng Du

IPC: H05G1/60 ,  A61B6/00

CPC classification number: G06T5/10 ,  G06T11/005 ,  G06T11/006 ,  G06T2211/421

Abstract: 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.

Abstract translation: 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：US20060065844A1

公开(公告)日：2006-03-30

申请号：US10955409

申请日：2004-09-30

Applicant: Scott Zelakiewicz ,  Clifford Bueno ,  Gregory Mohr ,  Paul FitzGerald ,  Forrest Hopkins ,  Aaron Couture

Inventor： Scott Zelakiewicz ,  Clifford Bueno ,  Gregory Mohr ,  Paul FitzGerald ,  Forrest Hopkins ,  Aaron Couture

IPC: G01T1/166

CPC classification number: G01N23/04 ,  H04N5/232 ,  H04N5/235 ,  H04N5/32

Abstract: An imaging system for dynamically optimizing an image is provided. The imaging system includes a source of radiation, and a detector assembly configured to generate an image signal based on an incidence of radiation on a scintillator assembly. At least one or more properties of the generated image signal are determined from the incidence of radiation on the detector assembly. The one or more properties of the image signal may also be determined from one or more detector operational parameters. The imaging system also includes a detector adjustment circuitry that is configured to adjust the one or more detector operational parameters based on the generated image signal.

Abstract translation: 提供了用于动态优化图像的成像系统。 成像系统包括辐射源，以及检测器组件，被配置为基于闪烁体组件上的辐射的入射来产生图像信号。 所产生的图像信号的至少一个或多个属性由检测器组件上的辐射入射确定。 也可以从一个或多个检测器操作参数确定图像信号的一个或多个属性。 成像系统还包括检测器调整电路，其被配置为基于所生成的图像信号调整一个或多个检测器操作参数。

公开(公告)号：US20050031075A1

公开(公告)日：2005-02-10

申请号：US10743195

申请日：2003-12-22

Applicant: Forrest Hopkins ,  Peter Edic ,  Samit Basu ,  Bruno De Man ,  James Leblanc ,  Xiaoye Wu ,  Deborah Walter ,  William Ross ,  Colin Wilson ,  Ricardo Avila ,  Robert Kaucic

Inventor： Forrest Hopkins ,  Peter Edic ,  Samit Basu ,  Bruno De Man ,  James Leblanc ,  Xiaoye Wu ,  Deborah Walter ,  William Ross ,  Colin Wilson ,  Ricardo Avila ,  Robert Kaucic

IPC: G01V5/00 ,  G01N23/04

CPC classification number: G01V5/0016 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041 ,  G01V5/005 ,  G06F19/00

Abstract: A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem utilizing a stationary radiation source and detector, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and a 2D/3D visualization subsystem. The detector may be an energy discriminating detector. The acquisition subsystem communicates view data to the reconstruction subsystem, which reconstructs it into image data and communicates it to the CAD subsystem. The CAD subsystem analyzes the image data to ascertain whether it contains any area of interest. Any such area of interest data is sent to the reconstruction subsystem for further reconstruction, using more rigorous algorithms and further analyzed by the CAD subsystem. Other information, such as risk variables or trace chemical detection information may be communicated to the CAD subsystem to be included in its analysis.

Abstract translation: 用于确定封闭物品内物体的身份的系统和方法。 该系统包括利用固定辐射源和检测器，重建子系统，计算机辅助检测（CAD）子系统和2D / 3D可视化子系统的采集子系统。 检测器可以是能量识别检测器。 采集子系统将视图数据传送到重建子系统，将其重建为图像数据并将其传送到CAD子系统。 CAD子系统分析图像数据，以确定它是否包含任何感兴趣的区域。 任何这样的感兴趣的数据区域被发送到重建子系统以进一步重建，使用更严格的算法并由CAD子系统进一步分析。 其他信息，例如风险变量或痕量化学检测信息可以传达给CAD子系统以包含在其分析中。

公开(公告)号：US20050185753A1

公开(公告)日：2005-08-25

申请号：US10784099

申请日：2004-02-23

Applicant: Yanfeng Du ,  Forrest Hopkins

Inventor： Yanfeng Du ,  Forrest Hopkins

IPC: G01N23/04 ,  G06T11/00 ,  G21K1/12

CPC classification number: G06T11/005 ,  A61B6/5282

Abstract: 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.

Abstract translation: 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：US20060133563A1

公开(公告)日：2006-06-22

申请号：US11018175

申请日：2004-12-20

Applicant: Forrest Hopkins ,  Walter Dixon ,  Clifford Bueno ,  Yanfeng Du ,  Gregory Mohr ,  Paul Fitzgerald ,  Thomas Birdwell

Inventor： Forrest Hopkins ,  Walter Dixon ,  Clifford Bueno ,  Yanfeng Du ,  Gregory Mohr ,  Paul Fitzgerald ,  Thomas Birdwell

IPC: H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  G01N23/06

CPC classification number: A61B6/4241 ,  A61B6/4035 ,  A61B6/405 ,  G01N23/04

Abstract: An energy discrimination radiography system includes at least one radiation source configured to alternately irradiate a component with radiation characterized by at least two energy spectra, where the component has a number of constituents. At least one radiation detector is configured to receive radiation passing through the component and a computer is operationally coupled to the detector. The computer is configured to receive data corresponding to each of the energy spectra for a scan of the component, process the data to generate a multi-energy data set, and decompose the multi-energy data set to generate material characterization images in substantially real time. A method for inspecting the component includes irradiating the component, receiving a data stream of energy discriminated data, processing the energy discriminated data, to generate a multi-energy data set, and decomposing the multi-energy data set, to generate material characterization images in substantially real time.

Abstract translation: 能量鉴别放射线照相系统包括至少一个辐射源，其被配置为交替地用具有至少两个能量谱的辐射照射组分，其中该组分具有多个成分。 至少一个辐射检测器被配置为接收通过部件的辐射，并且计算机可操作地耦合到检测器。 计算机被配置为接收对应于每个能量谱的数据，用于组件的扫描，处理数据以生成多能数据集，并且分解多能数据集以基本上实时地产生材料表征图像 。 用于检查部件的方法包括：照射该部件，接收能量鉴别数据的数据流，处理能量鉴别数据，生成多能数据集，并分解多能数据集，以产生材料表征图像 实质上是实时的。

公开(公告)号：US20060002515A1

公开(公告)日：2006-01-05

申请号：US11048159

申请日：2005-02-01

Applicant: William Huber ,  Colin Wilson ,  John Price ,  Peter Edic ,  Mark Vermilyea ,  Forrest Hopkins

Inventor： William Huber ,  Colin Wilson ,  John Price ,  Peter Edic ,  Mark Vermilyea ,  Forrest Hopkins

IPC: G21G4/00 ,  H01J35/30 ,  H01J35/00 ,  H05G2/00

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J35/16 ,  H01J35/30 ,  H01J2235/068

Abstract: A system and method for forming x-rays. One exemplary system includes a target and electron emission subsystem with a plurality of electron sources. Each of the plurality of electron sources is configured to generate a plurality of discrete spots on the target from which x-rays are emitted. Another exemplary system includes a target, an electron emission subsystem with a plurality of electron sources, each of which generates at least one of the plurality of spots on the target, and a transient beam protection subsystem for protecting the electron emission subsystem from transient beam currents and material emissions from the target.

Abstract translation: 一种用于形成x射线的系统和方法。 一个示例性系统包括具有多个电子源的靶和电子发射子系统。 多个电子源中的每一个被配置为在从其发射X射线的目标上产生多个离散点。 另一个示例性系统包括目标，具有多个电子源的电子发射子系统，每个电子源产生目标上的多个点中的至少一个，以及用于保护电子发射子系统免受瞬态束电流的瞬态波束保护子系统 和目标物质排放。

公开(公告)号：US20060214109A1

公开(公告)日：2006-09-28

申请号：US11090675

申请日：2005-03-25

Applicant: Clifford Bueno ,  Forrest Hopkins ,  Scott Zelakiewicz ,  Clarence Gordon

Inventor： Clifford Bueno ,  Forrest Hopkins ,  Scott Zelakiewicz ,  Clarence Gordon

IPC: G01T1/24

CPC classification number: G01T1/2018 ,  H01L27/14658

Abstract: 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.

Abstract translation: 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：US20080166033A1

公开(公告)日：2008-07-10

申请号：US11684176

申请日：2007-03-09

Applicant: Clifford Bueno ,  Elizabeth Dixon ,  Walter Dixon ,  Forrest Hopkins ,  Michael Hopple ,  Brian Lasiuk ,  Ronald McFarland ,  August Matula ,  Robert Mitchell ,  Kevin Moermond ,  Gregory Mohr

Inventor： Clifford Bueno ,  Elizabeth Dixon ,  Walter Dixon ,  Forrest Hopkins ,  Michael Hopple ,  Brian Lasiuk ,  Ronald McFarland ,  August Matula ,  Robert Mitchell ,  Kevin Moermond ,  Gregory Mohr

IPC: G06K9/00

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

Abstract: 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.

Abstract translation: 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为零。 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：US07215801B2

公开(公告)日：2007-05-08

申请号：US10456280

申请日：2003-06-05

Applicant: Clifford Bueno ,  Elizabeth Dixon ,  Walter Dixon ,  Forrest Hopkins ,  Michael Hopple ,  Brian Lasiuk ,  Ronald McFarland ,  August Matula ,  Robert Mitchell, Jr. ,  Kevin Moermond ,  Gregory Mohr

Inventor： Clifford Bueno ,  Elizabeth Dixon ,  Walter Dixon ,  Forrest Hopkins ,  Michael Hopple ,  Brian Lasiuk ,  Ronald McFarland ,  August Matula ,  Robert Mitchell, Jr. ,  Kevin Moermond ,  Gregory Mohr

IPC: G06K9/00

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

Abstract: 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.

Abstract translation: 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。