公开(公告)号：US07227982B2

公开(公告)日：2007-06-05

申请号：US10356161

申请日：2003-01-31

Applicant: Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu

Inventor： Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu

IPC: G06K9/00

CPC classification number: G06T11/006 ,  G06T11/008 ,  G06T2211/424

Abstract: Methods for three-dimensional projecting and backprojecting rays with respect to voxels/detector bins to attenuate/eliminate high-frequency artifacts, are disclosed. A distance-driven technique wherein the transitions of the voxels and the detector bins are respectively projected onto a predetermined plane. This projection allows a determination of the contribution of each of the voxels/bins for each of the bins/voxels with lower computation time and improved artifact free images.

Abstract translation: 公开了用于相对于体素/检测器箱的三维投影和反投影光线以衰减/消除高频伪影的方法。 距离驱动技术，其中体素和检测器箱的转变分别投影到预定平面上。 该投影允许以较低的计算时间和改善的无伪影图像来确定每个分组/体素的每个体素/分组的贡献。

公开(公告)号：US20060002504A1

公开(公告)日：2006-01-05

申请号：US10880875

申请日：2004-06-30

Applicant: Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu ,  Jong Ye

Inventor： Bruno Kristiaan Bernard De Man ,  Samit Kumar Basu ,  Jong Ye

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

CPC classification number: G06T11/006 ,  G06T2211/424

Abstract: A technique is provided for CT reconstruction for use in CT metrology. The boundary based CT reconstruction method includes the steps of initializing a boundary of an object to obtain a boundary estimate, defining a forward model based on the boundary estimate, linearizing the forward model to obtain a system matrix and implementing an iterative image reconstruction process using the system matrix to update the boundary estimate.

Abstract translation: 提供CT重建技术用于CT计量。 基于边界的CT重建方法包括初始化对象边界以获得边界估计的步骤，基于边界估计定义正向模型，将前向模型线性化以获得系统矩阵，并使用该方法实现迭代图像重建过程 系统矩阵来更新边界估计。

公开(公告)号：US20140010473A1

公开(公告)日：2014-01-09

申请号：US13542697

申请日：2012-07-06

Applicant: Samit Kumar Basu ,  Todd Jason Gable

Inventor： Samit Kumar Basu ,  Todd Jason Gable

IPC: G06K9/40

CPC classification number: G06T11/008

Abstract: A method for imaging an object is provided. The method includes acquiring image data of the object, wherein the image data includes a plurality of original voxels each having an original CT number, identifying, using a processing device, a subset of the original voxels based on at least one of an original CT number and a location of each original voxel, applying, using the processing device, an anisotropic smoothing filter to the identified original voxels in the subset to generate a set of smoothed voxels each having a smoothed CT number, generating, using the processing device, smoothed image data by combining the original voxels and the smoothed voxels, and analyzing the smoothed image data to determine whether the object contains contraband.

Abstract translation: 提供了一种用于成像对象的方法。 所述方法包括获取所述对象的图像数据，其中所述图像数据包括每个具有原始CT号码的多个原始体素，基于原始CT数字中的至少一个，使用处理设备识别所述原始体素的子集 以及每个原始体元的位置，使用处理设备向所述子集中的所识别的原始体素应用各向异性平滑滤波器，以生成每个具有平滑CT数的平滑体素集合，使用所述处理设备生成平滑图像 通过组合原始体素和平滑体素的数据，并分析平滑的图像数据以确定对象是否包含违禁品。

公开(公告)号：US08571287B2

公开(公告)日：2013-10-29

申请号：US11474613

申请日：2006-06-26

Applicant: Bruno DeMan ,  Samit Kumar Basu

Inventor： Bruno DeMan ,  Samit Kumar Basu

IPC: G06K9/00

CPC classification number: G01N23/046 ,  A61B6/03 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/424

Abstract: Methods are provided for iteratively reconstructing an image signal to generate a reconstructed image signal. In one embodiment, sub-iterations of each iteration are performed on pixel subsets. The pixel subsets may be composed of pixels neighboring or spatially separated pixel. In a further embodiment, each iteration is performed at a different resolution. Systems and computer routines for processing image data iteratively in accordance with these techniques are also provided.

Abstract translation: 提供了用于迭代重建图像信号以产生重建图像信号的方法。 在一个实施例中，对像素子集执行每次迭代的子迭代。 像素子集可以由相邻或空间分离的像素的像素组成。 在另一个实施例中，每次迭代以不同的分辨率执行。 还提供了用于根据这些技术迭代地处理图像数据的系统和计算机程序。

公开(公告)号：US08416415B2

公开(公告)日：2013-04-09

申请号：US12430337

申请日：2009-04-27

Applicant: Mark Allen Woodmansee ,  Samit Kumar Basu ,  Vijay Kumar Yaram ,  Weiguo Chen ,  Yikang Gu ,  Kevin Michael Hinckley

Inventor： Mark Allen Woodmansee ,  Samit Kumar Basu ,  Vijay Kumar Yaram ,  Weiguo Chen ,  Yikang Gu ,  Kevin Michael Hinckley

IPC: G01N21/00

CPC classification number: F23N5/082 ,  F01D17/085 ,  F01D21/003 ,  F23N5/003 ,  F23N2041/20 ,  G01J5/0088 ,  G01J5/58 ,  G01J2005/0081 ,  Y02T50/677

Abstract: A method and system for recreating a two-dimensional distribution of temperatures in an exhaust plane of a gas turbine engine. Light transmission and detection pairs may be arranged in the annulus of the exhaust of the turbine engine in such a way that the individual rays form a two-dimensional mesh of beams across a sector of the exhaust. Based on the absorption of the rays, the temperature of the sector of the exhaust thru which the ray passes may be determined. Based on these determinations, an image that corresponds to the operation of the turbine engine may be generated.

Abstract translation: 一种用于重建燃气涡轮发动机的排气平面中的二维温度分布的方法和系统。 光透射和检测对可以以这样的方式布置在涡轮发动机的排气的环形空间中，使得各个射线在排气的扇区上形成横梁的二维网格。 基于光线的吸收，可以确定射线通过的排气扇区的温度。 基于这些确定，可以产生对应于涡轮发动机的操作的图像。

公开(公告)号：US08160200B2

公开(公告)日：2012-04-17

申请号：US12750050

申请日：2010-03-30

Applicant: John Eric Tkaczyk ,  David Allen Langan ,  Samit Kumar Basu ,  Xiaoye Wu ,  Bruno Kristiaan Bernard De Man ,  Jeffrey Seymour Gordon

Inventor： John Eric Tkaczyk ,  David Allen Langan ,  Samit Kumar Basu ,  Xiaoye Wu ,  Bruno Kristiaan Bernard De Man ,  Jeffrey Seymour Gordon

IPC: H05G1/26

CPC classification number: A61B6/4035 ,  A61B6/032 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/488 ,  A61B6/542

Abstract: A technique for acquiring desired image data in an imaging system comprising at least one radiation source and a detector is described. Initially, preliminary image data corresponding to an object may be acquired. Further, at least one parameter associated with the radiation source and corresponding to a particular view angle of the radiation source may be determined based on the preliminary image data and a priori information. Similarly, at least one parameter associated with the detector and corresponding to the particular view angle may be determined based on a priori information and the preliminary image data. Efficient operating modes of the radiation source and the detector corresponding to the particular view angle may be selected based on the determined parameters to achieve a desired system performance. Subsequently, the final image data may be acquired using the selected operating modes of the radiation source and the detector.

Abstract translation: 描述了在包括至少一个辐射源和检测器的成像系统中获取所需图像数据的技术。 首先，可以获取与对象相对应的初步图像数据。 此外，可以基于初步图像数据和先验信息来确定与辐射源相关联并且对应于辐射源的特定视角的至少一个参数。 类似地，可以基于先验信息和初步图像数据来确定与检测器相关联并且对应于特定视角的至少一个参数。 可以基于确定的参数来选择对应于特定视角的辐射源和检测器的有效操作模式以实现期望的系统性能。 随后，可以使用所选择的辐射源和检测器的操作模式来获取最终图像数据。

公开(公告)号：US07889835B2

公开(公告)日：2011-02-15

申请号：US10737887

申请日：2003-12-18

Applicant: Robert August Kaucic ,  Ricardo Scott Avila ,  Samit Kumar Basu ,  Forrest Frank Hopkins

Inventor： Robert August Kaucic ,  Ricardo Scott Avila ,  Samit Kumar Basu ,  Forrest Frank Hopkins

IPC: G01N23/04 ,  A61B6/03

CPC classification number: G01V5/0016 ,  G01V5/005 ,  Y10S378/901

Abstract: A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and an alarm resolution subsystem. 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. A feedback loop between the reconstruction and CAD subsystems allows for continued, more extensive analysis of the object. Other information, such as risk variables or trace chemical detection information may be communicated to the CAD subsystem to dynamically adjust the computational load of the analysis.

Abstract translation: 用于确定封闭物品内物体的身份的系统和方法。 该系统包括采集子系统，重建子系统，计算机辅助检测（CAD）子系统和报警解析子系统。 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。 重建和CAD子系统之间的反馈循环允许对对象进行持续更广泛的分析。 其他信息，如风险变量或痕量化学检测信息可以传达给CAD子系统，以动态调整分析的计算负荷。

公开(公告)号：US07881426B2

公开(公告)日：2011-02-01

申请号：US12393591

申请日：2009-02-26

Applicant: Samit Kumar Basu ,  Jian Gao ,  Steven Leslie Hills ,  Eugene Alex Ingerman ,  Pierfrancesco Landolfi ,  Sussan Pourjavid-Granfors

Inventor： Samit Kumar Basu ,  Jian Gao ,  Steven Leslie Hills ,  Eugene Alex Ingerman ,  Pierfrancesco Landolfi ,  Sussan Pourjavid-Granfors

IPC: A61B6/03 ,  H05G1/30 ,  G01N23/083

CPC classification number: G01V5/005 ,  A61B6/027

Abstract: A method for generating an image of an object using a scanning system includes performing a first portion of a scan in a first scanning mode to acquire a first dataset, receiving a halt command for a conveyor within the scanning system, decelerating the conveyor to a halt based on the halt command using a conveyor controller, and, when the object is present within an examination region after the conveyor has halted, performing a second portion of the scan in a second scanning mode to acquire a second dataset. The second scanning mode is different than the first scanning mode. The method also includes reconstructing the first dataset using a first reconstruction algorithm and reconstructing the second dataset using a second reconstruction algorithm. The second reconstruction algorithm is different than the first reconstruction algorithm. The image is generated using the first reconstructed dataset and the second reconstructed dataset.

Abstract translation: 使用扫描系统生成物体的图像的方法包括以第一扫描模式执行扫描的第一部分以获取第一数据集，在扫描系统内接收用于输送机的停止命令，使输送机减速停止 基于使用输送机控制器的停止命令，并且当所述物体在所述输送机停止之后存在于检查区域内时，以第二扫描模式执行所述扫描的第二部分以获取第二数据集。 第二扫描模式与第一扫描模式不同。 该方法还包括使用第一重建算法重构第一数据集，并使用第二重构算法重构第二数据集。 第二种重建算法与第一种重建算法不同。 使用第一重建数据集和第二重构数据集生成图像。

公开(公告)号：US07835486B2

公开(公告)日：2010-11-16

申请号：US11726023

申请日：2007-03-20

Applicant: Samit Kumar Basu ,  Bruno De Man ,  Jed Douglas Pack ,  Xiaoye Wu ,  Zhye Yin ,  Peter Michael Edic

Inventor： Samit Kumar Basu ,  Bruno De Man ,  Jed Douglas Pack ,  Xiaoye Wu ,  Zhye Yin ,  Peter Michael Edic

IPC: G01N23/083

CPC classification number: G01T1/2985 ,  A61B6/027

Abstract: Systems and methods are provided for acquiring and reconstructing projection data that is mathematically complete or sufficient using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a distributed source is provided as arcuate segments offset in the X-Y plane and along the Z-axis.

Abstract translation: 提供了系统和方法，用于使用具有固定分布式X射线源和检测器阵列的计算机断层摄影（CT）系统来获取和重建数学上完整或足够的投影数据。 在一个实施例中，分布式源被提供为在X-Y平面和Z轴上偏移的弧形段。

公开(公告)号：US20100278296A1

公开(公告)日：2010-11-04

申请号：US12432225

申请日：2009-04-29

Applicant: Peter Michael Edic ,  Colin Richard Wilson ,  Samit Kumar Basu

Inventor： Peter Michael Edic ,  Colin Richard Wilson ,  Samit Kumar Basu

IPC: H05G1/60 ,  G21K3/00

CPC classification number: G21K1/10 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/482 ,  G01N2223/419 ,  G01N2223/423

Abstract: Methods for energy-sensitive computed tomography systems that use checkerboard filtering. A method of enhancing image analysis of projection data acquired using a detector configured with a checkerboard filter includes disposing in a system a detector to receive a transmitted beam of X-rays traversing through an object, where the system is configured so the detector receives both high- and one of total- and low-energy projection data; receiving the high- and one of total- and low-energy projection data at the detector; and then estimating an effective atomic number of the object and/or processing the projection data so as to mitigate reconstruction artifacts. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appended claims.

Abstract translation: 使用棋盘过滤的能量敏感计算机断层摄影系统的方法。 使用配置有棋盘滤波器的检测器获取的投影数据的图像分析增强方法包括在系统中设置检测器以接收穿过物体的X射线的透射束，其中系统配置为使得检测器接收高 - 和总能量和低能量投影数据之一; 在检测器处接收高能量投影数据和低能量投影数据之一; 然后估计对象的有效原子数和/或处理投影数据，以便减轻重建伪像。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。