公开(公告)号：US08389965B2

公开(公告)日：2013-03-05

申请号：US12101687

申请日：2008-04-11

Applicant: Kejun Kang ,  Haifeng Hu ,  Chuanxiang Tang ,  Yuanjing Li ,  Qitian Miao ,  Huayi Zhang ,  Junli Li ,  Zhiqiang Chen ,  Ming Hu ,  Ming Huang ,  Yaohong Liu ,  Wanlong Wu ,  Hui Zhang ,  Shenjin Ming

Inventor： Kejun Kang ,  Haifeng Hu ,  Chuanxiang Tang ,  Yuanjing Li ,  Qitian Miao ,  Huayi Zhang ,  Junli Li ,  Zhiqiang Chen ,  Ming Hu ,  Ming Huang ,  Yaohong Liu ,  Wanlong Wu ,  Hui Zhang ,  Shenjin Ming

IPC: G01N23/00 ,  H01J37/20

CPC classification number: A61L2/087 ,  A01M1/226

Abstract: For quarantine treatment of a farming and forestry product for pest control, a method and a device may irradiate logs as a phytosanitary treatment with electron beams. The method may include: spreading the logs; aligning the spread logs to be flush at one end; conveying the spread and flush logs laterally; conveying the logs longitudinally through an irradiation field formed by accelerators to provide treatment of irradiation with the electron beams; throwing the irradiated logs out; and laterally conveying the logs away. The device may include a conveying device for conveying the logs, a shielding structure surrounding the conveying device, and accelerators provided in the conveying path of the conveying device. Two or more accelerators may be provided in centrosymmetry about the conveying path.

Abstract translation: 对于用于病虫害防治的农林产品的检疫处理，一种方法和装置可以用电子束作为植物检疫处理照射原木。 该方法可以包括：传播日志; 对齐扩展日志在一端齐平; 横向输送传播和冲洗原木; 通过由加速器形成的照射场纵向地传送原木以提供对电子束的照射的处理; 扔出照射的日志; 并横向传送原木。 该装置可以包括用于输送原木的输送装置，围绕输送装置的屏蔽结构以及设置在输送装置的输送路径中的加速器。 可以围绕输送路径以中心对称性提供两个或更多个加速器。

公开(公告)号：US08374310B2

公开(公告)日：2013-02-12

申请号：US12665301

申请日：2008-06-19

Applicant: Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Hua Peng ,  Tiezhu Li ,  Ziran Zhao ,  Yaohong Liu ,  Wanlong Wu

Inventor： Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Hua Peng ,  Tiezhu Li ,  Ziran Zhao ,  Yaohong Liu ,  Wanlong Wu

IPC: G01N23/04

CPC classification number: G21B1/19 ,  C09D5/1606 ,  G21G4/02 ,  H05H6/00

Abstract: A method and a system for contraband detection in an object using photoneutrons and x-rays includes an x-ray generator that generates an x-ray main beam including a first x-ray beam and a second x-ray beam, the first x-ray beam being directed to pass through the object. A photoneutron conversion target is arranged to receive the second x-ray beam so as to generate photoneutrons, the photoneutrons being directed to enter the object and react with the object to emit characteristic γ-rays. An x-ray detecting arrangement is arranged to receive the first x-ray beam that has passed through the object in order to perform x-ray imaging detection of the detected object. A γ-ray detecting arrangement is arranged to receive the characteristic γ-rays in order to perform neutron detection of the object based on the characteristic γ-rays. The x-ray imaging detection and the neutron detection are simultaneously performed.

Abstract translation: 使用光子中子和X射线的物体中的违禁品检测方法和系统包括产生包括第一X射线束和第二X射线束的X射线主光束的X射线发生器， 射线束被引导通过物体。 光子中子转换目标被布置成接收第二x射线束以产生光子酮，所述光子酮被引导进入物体并与物体反应以发射特征γ射线。 X射线检测装置被布置成接收已经通过物体的第一x射线束，以对被检测物体进行X射线成像检测。 γ射线检测装置被布置成接收特征γ射线，以便基于特征γ射线进行物体的中子检测。 同时进行x射线成像检测和中子检测。

公开(公告)号：US20120140874A1

公开(公告)日：2012-06-07

申请号：US13322696

申请日：2009-12-30

Applicant: Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao

Inventor： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao

IPC: A61B6/03 ,  A61B6/08

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/4452 ,  A61B6/469 ,  G06T11/006 ,  G06T2211/416 ,  G06T2211/421 ,  G06T2211/424

Abstract: The present invention discloses a method for performing CT imaging on a region of interest of an object under examination, comprising: acquiring the CT projection data of the region of interest; acquiring the CT projection data of region B; selecting a group of PI line segments covering the region of interest, and calculating the reconstruction image value for each PI line segment in the group; and combining the reconstruction image values in all the PI line segments to obtain the image of the region of interest. The present invention further discloses a CT imaging device using this method and a data processor therein. Since the 2D/3D slice image of the region of interest can be exactly reconstructed and obtained as long as the X-ray beam covers the region of interest and the region B, it is possible to use a small-sized detector to perform CT imaging on the region of interest at any position of a large-sized object, which reduces to a great extent the radiation dose of the X-ray during the CT scanning.

Abstract translation: 本发明公开了一种对被检查物体的感兴趣区域进行CT成像的方法，包括：获取感兴趣区域的CT投影数据; 获取区域B的CT投影数据; 选择覆盖感兴趣区域的一组PI线段，并计算组中每个PI线段的重建图像值; 并且将所有PI线段中的重建图像值组合以获得感兴趣区域的图像。 本发明还公开了一种使用该方法的CT成像装置及其中的数据处理器。 由于只要X射线束覆盖感兴趣区域和区域B，就可以精确地重构和获得感兴趣区域的2D / 3D切片图像，因此可以使用小尺寸检测器来执行CT成像 在大尺寸物体的任何位置处的感兴趣区域，其在CT扫描期间在很大程度上降低X射线的辐射剂量。

公开(公告)号：US20120106832A1

公开(公告)日：2012-05-03

申请号：US13140761

申请日：2011-05-11

Applicant: Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

Inventor： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

IPC: G06K9/00

CPC classification number: G06T11/006 ,  G06T2211/421

Abstract: A method and apparatus for CT image reconstruction may include selecting, by a unit, projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit, implementing, by a unit, a weighting processing on the selected projection data, filtering, by a unit, the weighting processed projection data along a horizontal direction, implementing, by a unit, three-dimensional back projection on the filtered projection data along the direction of ray. The method and apparatus can effectively eliminate cone beam artifact under a large cone angle.

Abstract translation: 用于CT图像重建的方法和装置可以包括以单位选择具有接近于扫描圆形轨道的曲率的曲线上具有相同高度的投影数据，由单元实现对所选投影的加权处理 数据，单位滤波沿着水平方向的加权处理的投影数据，通过一个单元沿着沿着光线的方向实现对经滤波的投影数据的三维反投影。 该方法和装置可以有效地消除大锥角下的锥束伪影。

公开(公告)号：US08066102B2

公开(公告)日：2011-11-29

申请号：US11525697

申请日：2006-09-22

Applicant: Xilei Luo ,  Kejun Kang ,  Yinong Liu ,  Yuanjing Li ,  Zhiqiang Chen ,  Wanlong Wu ,  Yulan Li ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

Inventor： Xilei Luo ,  Kejun Kang ,  Yinong Liu ,  Yuanjing Li ,  Zhiqiang Chen ,  Wanlong Wu ,  Yulan Li ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

IPC: B66B9/02 ,  H01L21/68 ,  G21K5/10

CPC classification number: G01N23/046 ,  G01N2223/419

Abstract: A lifting apparatus includes a vertical guide device, a turntable device which is movable along the vertical guide device upwards or downwards, and a first driving device which drives the turntable device moving in an upward and downward direction guided by the vertical guide device. The turntable device includes a bracket which is slidably engaged with the vertical guide device and projects perpendicularly toward a side of the vertical guide device, a turntable which is rotatably provided on the bracket, and a second driving device which rotates the turntable on the bracket.

Abstract translation: 提升装置包括垂直导向装置，可沿着垂直导向装置向上或向下移动的转台装置，以及第一驱动装置，其驱动转盘装置沿垂直导向装置引导的向上和向下方向移动。 转盘装置包括：托架，其与所述垂直引导装置可滑动地接合并且垂直地朝向所述垂直引导装置的侧面突出;转台，其可旋转地设置在所述支架上;以及第二驱动装置，其使所述转盘旋转在所述支架上。

公开(公告)号：US08039803B2

公开(公告)日：2011-10-18

申请号：US12920161

申请日：2009-02-16

Applicant: Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

Inventor： Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

IPC: G01J5/02

CPC classification number: G01N21/3581

Abstract: A method for phase contrast imaging comprises: illuminating an object by terahertz radiation such that the terahertz radiation interacts with the object; illuminating a diffraction grating by the terahertz radiation that has interacted with the object; translating the diffraction grating along the direction of the grating wave vector, to measure, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and retrieving a phase contrast image of the object from the intensity distributions. An apparatus for phase contrast imaging is also provided.

Abstract translation: 一种用于相位对比成像的方法包括：用太赫兹辐射照射物体，使得太赫兹辐射与物体相互作用; 用与物体相互作用的太赫兹辐射照射衍射光栅; 沿着光栅波矢的方向平移衍射光栅，以测量每个不同的光栅位置，在衍射场中与物体和光栅相互作用的太赫兹辐射的强度分布; 以及从所述强度分布中检索所述对象的相位对比图像。 还提供了一种用于相位成像的装置。

公开(公告)号：US07817775B2

公开(公告)日：2010-10-19

申请号：US11997448

申请日：2007-01-08

Applicant: Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Shangmin Sun ,  Guang Yang ,  Fengjun Zhang ,  Yong Bi ,  Yucheng Wu ,  Jianjun Li ,  Rongxuan Liu

Inventor： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Shangmin Sun ,  Guang Yang ,  Fengjun Zhang ,  Yong Bi ,  Yucheng Wu ,  Jianjun Li ,  Rongxuan Liu

IPC: G01N23/04

CPC classification number: G01N23/04 ,  B66F7/065 ,  B66F7/08 ,  G01V5/0008

Abstract: Disclosed is an inspection system for inspecting a cargo by using radiation, comprising: a main plate conveyor; a radiation scanning unit that spans said main plate conveyor and is provided above said main plate conveyor, for scanning the cargo provided on the main plate conveyor; auxiliary conveyors that are provided at the front end and rear end of said main plate conveyor, respectively, so as to load the cargo to be inspected onto said main plate conveyor and to unload the inspected cargo from said main plate conveyor; and lifting devices for lifting said auxiliary conveyors. The inspection system according to the present invention occupies less area, has simple corollary equipments, a lower operating cost, and excellent compatibility, and can be widely applied.

Abstract translation: 公开了一种通过使用辐射来检查货物的检查系统，包括：主板输送机; 辐射扫描单元，跨越所述主板传送器并且设置在所述主板传送器上方，用于扫描设置在主板传送器上的货物; 辅助输送机，分别设置在所述主板输送机的前端和后端，以将要检查的货物装载到所述主板输送机上，并从所述主板输送机卸载被检查的货物; 以及用于提升所述辅助输送机的提升装置。 本发明的检查系统占地面积小，配套简单，运行成本低，兼容性好，可广泛应用。

公开(公告)号：US07760852B2

公开(公告)日：2010-07-20

申请号：US12159640

申请日：2006-12-14

Applicant: Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Haifeng Hu ,  Yuxiang Xing ,  Liang Li ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

Inventor： Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Haifeng Hu ,  Yuxiang Xing ,  Liang Li ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

IPC: A61B6/00

CPC classification number: A61B6/032 ,  A61B6/587

Abstract: An X-CT scan system includes a base, an object rotary support, an X-ray generation device and a data acquisition system, wherein one side of the detector is leveled to or beyond the prolong line of the connecting line between the X-ray source of the X-ray generation device and the center of the object rotary support, the length of the beyond portion is less than the radius of the imaging field. The advantage of the invention is in that the invention can reconstruct the entire image of the object by means of X-ray projection data which only covers half of the area of the object. Compared with the traditional CT scan system, half of the detector size can be saved at most. The X-CT scan system is simplified and the projection data amount for scan and computation amount for image reconstruction are also reduced with the reconstructed image quality guaranteed.

Abstract translation: X-CT扫描系统包括基座，对象旋转支架，X射线产生装置和数据采集系统，其中检测器的一侧被平整到或超过X射线之间的连接线的延长线 X射线产生装置的源和对象旋转支架的中心，超出部分的长度小于成像场的半径。 本发明的优点在于，本发明可以通过仅覆盖对象区域的一半的X射线投影数据来重建物体的整个图像。 与传统CT扫描系统相比，检测器尺寸的一半最多可以节省。 X-CT扫描系统被简化，并且用于图像重建的扫描和计算量的投影数据量也被减少，重建图像质量得到保证。

公开(公告)号：US20090129544A1

公开(公告)日：2009-05-21

申请号：US12270908

申请日：2008-11-14

Applicant: Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yongshun Xiao

Inventor： Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yongshun Xiao

IPC: G01N23/04

CPC classification number: G01N23/04 ,  G01N23/087 ,  G01N2223/423

Abstract: A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.

Abstract translation: 公开了一种物质识别方法及其装置。 该方法包括以下步骤：使用高能射线和低能射线发射被检查物体，以获得该物体的高能透射图像和低能透射图像，其中每个像素的值 在高能量图像中表示高能量射线相对于物体的相应部分的高能量透明度，并且低能量图像中的每个像素的值表示低能量透射度的低能量 相对于物体的相应部分的射线; 对于每个像素，计算用于高能量透明度的第一函数的值和用于高能量透明度和低能量透明度的第二函数的值; 以及使用预先创建的分类曲线对由第一函数的值和第二函数的值确定的位置进行分类，以便识别与每个像素对应的对象的一部分的实体的类型。 利用本发明，不仅可以获得对象的发送图像，而且可以获得对象中的素材信息。

公开(公告)号：US07512213B2

公开(公告)日：2009-03-31

申请号：US11801250

申请日：2007-05-08

Applicant: Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

Inventor： Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

IPC: G01N23/04

CPC classification number: G01N23/046 ,  G01N2223/419 ,  G01T1/2985 ,  G01V5/005 ,  G06T7/0004

Abstract: A multiple-view-angle cargo security inspection method for inspecting an object using a cargo security inspection system, the cargo security inspection system including a radiation source for generating a beam of rays for transmitting through the object to be inspected and a data collecting unit for collecting the transmission projection data after the beam of rays has transmitted through the inspected object, the method including a scanning step including: rotating the radiation source and/or the object about a rotation axis so as to achieve a relative rotation, thereby positioning the radiation source in a plurality of discrete positions with different view angles with respect to the inspected object, wherein, in each view angle, the radiation source moves along a straight line in a direction parallel to the rotation axis and at the same time scans the inspected object so as to acquire the transmission projection data at each view angle.

Abstract translation: 一种用于使用货物安全检查系统检查物体的多视角货物安全检查方法，所述货物安全检查系统包括用于产生用于通过待检查对象传送的光束的辐射源，以及用于 在射线束透过被检查物体之后收集透射投影数据，该方法包括扫描步骤，包括：使辐射源和/或物体围绕旋转轴旋转，以实现相对旋转，从而定位辐射 源于相对于被检查物体具有不同视角的多个离散位置，其中，在每个视角中，辐射源沿着平行于旋转轴线的方向沿着直线移动，并且同时扫描被检查物体 以便以每个视角获取传输投影数据。