公开(公告)号：US09194827B2

公开(公告)日：2015-11-24

申请号：US13519305

申请日：2010-06-28

Applicant: Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Dong Lin ,  Le Tang ,  Chao Tu ,  Zongjun Shen ,  Guangwei Ding ,  Yingkang Jin ,  Xilei Luo ,  Shuo Cao

Inventor： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Dong Lin ,  Le Tang ,  Chao Tu ,  Zongjun Shen ,  Guangwei Ding ,  Yingkang Jin ,  Xilei Luo ,  Shuo Cao

IPC: G01N23/203 ,  G21K1/04

CPC classification number: G01N23/203 ,  G21K1/043

Abstract: Disclosed is a scanning device using radiation beam for backscatter imaging. The scanning device includes a radiation source; a stationary shield plate and a rotary shield body positioned respectively between the radiation source and the subject to be scanned, wherein the stationary shield plate is fixed relative to the radiation source, and the rotary shield body is rotatable relative to the stationary shield plate. The ray passing area permitting the rays from the radiation source to pass through the stationary shield plate is provided on the stationary shield plate, and ray incidence area and ray exit area are respectively provided on the rotary shield body. During the process of the rotating and scanning of the rotary shield body, the ray passing area of the stationary shield plate intersects consecutively with the ray incidence area and the ray exit area of the rotary shield body to form scanning collimation holes. Further, a scanning method using radiation beam for backscatter imaging is also provided.

Abstract translation: 公开了使用用于反向散射成像的辐射束的扫描装置。 扫描装置包括辐射源; 分别位于辐射源和待扫描对象之间的固定屏蔽板和旋转屏蔽体，其中固定屏蔽板相对于辐射源固定，并且旋转屏蔽体可相对于固定屏蔽板旋转。 在固定屏蔽板上设置允许来自辐射源的光线通过固定屏蔽板的射线通过面积，并且在旋转屏蔽体上分别设置射线入射区域和射出口区域。 在旋转屏蔽体的旋转和扫描过程中，固定屏蔽板的射线通过面积与旋转屏蔽体的射线入射面积和射线出射面积连续相交，形成扫描准直孔。 此外，还提供了使用用于反向散射成像的辐射束的扫描方法。

公开(公告)号：US08724889B2

公开(公告)日：2014-05-13

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

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：US08290230B2

公开(公告)日：2012-10-16

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: G06K9/00

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：US08194953B2

公开(公告)日：2012-06-05

申请号：US12180850

申请日：2008-07-28

Applicant: Yali Xie ,  Qitian Miao ,  Hua Peng ,  Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Xueguang Cao ,  Chuanxiang Tang ,  Jianping Gu ,  Xuewu Wang ,  Hongsheng Wen ,  Bei He ,  Yaohong Liu ,  Shangmin Sun ,  Quanwei Song ,  Jin Lin ,  Xianli Ding

Inventor： Yali Xie ,  Qitian Miao ,  Hua Peng ,  Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Xueguang Cao ,  Chuanxiang Tang ,  Jianping Gu ,  Xuewu Wang ,  Hongsheng Wen ,  Bei He ,  Yaohong Liu ,  Shangmin Sun ,  Quanwei Song ,  Jin Lin ,  Xianli Ding

IPC: G21K4/00 ,  G06K9/46

CPC classification number: G01N23/04 ,  G01N2223/414 ,  G01N2223/423 ,  G06T7/593 ,  G06T2207/10116

Abstract: The present invention provides a method and system of material identification using binocular steroscopic and multi-energy transmission image. With the method, any obstacle that dominates the ray absorption can be peeled off from the objects that overlap in the direction of a ray beam. The object that is unobvious due to a relatively small amount of ray absorption will thus stand out, and the material property of the object, such as organic, mixture, metal and the like can be identified. This method lays a fundament for automatic identification of harmful objects, such as explosive, drugs, etc., concealed in a freight container.

Abstract translation: 本发明提供使用双目立体和多能透射图像的材料识别方法和系统。 利用该方法，可以从支配射线吸收的任何障碍物从与射线束的方向重叠的物体剥离。 因此，由于相对少量的光线吸收而不明显的物体将脱颖而出，并且可以识别物体的材料性质，例如有机物，混合物，金属等。 这种方法为自动识别隐藏在货运集装箱中的有害物体（如爆炸物，药物等）奠定了基础。

公开(公告)号：US20120014579A1

公开(公告)日：2012-01-19

申请号：US13142725

申请日：2010-12-27

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

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

IPC: G06K9/00

CPC classification number: A61B6/5264 ,  A61B6/032 ,  G06T7/285 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2211/412

Abstract: A CT device and method based on motion compensation are proposed. The present invention obtains motion parameters of a target object by using a stereo-vision-based motion measurement system, and then implements motion compensation through the technology based on reconstructed image matrix transformation, thereby obtaining a clear 2D/3D CT image while eliminating motion artifacts. The present invention can effectively eliminate motion artifacts caused by the scanned object's own motions in the CT scanning, and can be easily embedded into the existing CT scanning equipments. The present invention can improve quality of the CT images, and is especially important for CT imaging of some special groups of people that can not control their own motions, such as Parkinson's patients, infants, living mouse and so on. It can also improve ultra-high-resolution imaging of human body.

Abstract translation: 提出了一种基于运动补偿的CT装置和方法。 本发明通过使用基于立体视觉的运动测量系统获得目标对象的运动参数，然后通过基于重构图像矩阵变换的技术实现运动补偿，从而获得清晰的2D / 3D CT图像，同时消除运动伪影 。 本发明能够有效地消除CT扫描中被扫描物体自身运动引起的运动伪影，并且可以容易地嵌入现有的CT扫描设备中。 本发明可以提高CT图像的质量，对于一些不能控制自己的运动的特殊人群，如帕金森患者，婴儿，生活小鼠等，对CT成像尤为重要。 它还可以改善人体的超高分辨率成像。

公开(公告)号：US08027429B2

公开(公告)日：2011-09-27

申请号：US12492739

申请日：2009-06-26

Applicant: Haifeng Hu ,  Kejun Kang ,  Li Zhang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Zhen Wu

Inventor： Haifeng Hu ,  Kejun Kang ,  Li Zhang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Zhen Wu

IPC: G01N23/06 ,  G01N23/087 ,  G01D18/00

CPC classification number: G01N23/04 ,  G01N2223/303 ,  G01N2223/423 ,  G01V5/0041

Abstract: Disclosed are a method and a device for real-time mark for a high-energy X-ray dual-energy imaging container inspection system in the radiation imaging field. The method comprises the steps of emitting a first main beam of rays and a first auxiliary beam of rays having a first energy, and a second main beam of rays and a second auxiliary beam of rays having a second energy; causing the first and second main beams of rays transmitting through the article to be inspected; causing the first and second auxiliary beams of rays transmitting through at least one real-time mark material block; collecting values of the first and second main beams of rays that have transmitted through the article to be inspected as dual-energy data; collecting values of the first and second auxiliary beams of rays that have transmitted through the real-time mark material block as adjustment parameters; adjusting the set of classification parameters based on the adjustment parameters; and identifying the substance according to the dual-energy data based on adjusted classification parameters. The method according to the invention simplifies the mark procedure for a substance identification subsystem in a high-energy dual-energy system while improves the stability of the material differentiation result of the system.

Abstract translation: 公开了用于在辐射成像领域中的高能量X射线双能量成像容器检查系统的实时标记的方法和装置。 该方法包括以下步骤：发射第一主光束和具有第一能量的第一辅助光束和第二主射线束以及具有第二能量的第二辅助光束; 导致透过物品的第一和第二主光束被检查; 使得所述第一和第二辅助光束通过至少一个实时标记材料块传播; 收集通过待检测物品的第一和第二主光束的值作为双能数据; 收集通过实时标记材料块传输的第一和第二辅助光束的值作为调整参数; 根据调整参数调整分类参数集; 并根据调整后的分类参数，根据双能数据识别物质。 根据本发明的方法简化了高能双能系统中物质识别子系统的标记程序，同时提高了系统材料分化结果的稳定性。

公开(公告)号：US20110024624A1

公开(公告)日：2011-02-03

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: H01L31/09 ,  H01L31/0232

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 comprises: a terahertz radiation emitter for generating terahertz radiation, which illuminates an object to interact with the object; a diffraction grating, which is illuminated by the terahertz radiation that has interacted with the object; a terahertz radiation detector for measuring, 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 a data collecting and processing system for retrieving a phase contrast image of the object from the intensity distributions.

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。 用于相位对比成像的装置包括：太赫兹辐射发射器，用于产生太赫兹辐射，其照亮物体与物体相互作用; 衍射光栅，其被与物体相互作用的太赫兹辐射照射; 太赫兹辐射检测器，用于针对每个不同的光栅位置，在衍射场中测量与物体和光栅相互作用的太赫兹辐射的强度分布; 以及用于从强度分布中检索对象的相位对比图像的数据收集和处理系统。

公开(公告)号：US20100243874A1

公开(公告)日：2010-09-30

申请号：US12665306

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: H05H6/00

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

Abstract: A photoneutron conversion target for generating photoneutrons by directing an x-ray beam at the photoneutron conversion target includes an elongated body having a first end and a second end. When the photoneutron conversion target is in use, the x-ray beam enters the body and propagates in a direction from the first end to the second end. The body of the photoneutron conversion target is shaped such that propagation of the x-ray beam is substantially proportionate to an intensity distribution of the x-ray beam, so that the greater an intensity of x-rays of the x-ray beam, the greater the propagation distance of the x-rays within the body of the photoneutron conversion target. The photoneutron conversion target according to the invention can make full use of the x-ray beam so as to increase a yield of photoneutrons.

Abstract translation: 用于通过在光子中子转换目标处引导x射线束来产生光子中子的光中子转换靶包括具有第一端和第二端的细长体。 当使用光中子转换靶时，X射线束进入体内并沿从第一端到第二端的方向传播。 光子中子转换靶的主体被成形为使得x射线束的传播与x射线束的强度分布成正比，使得x射线束的X射线的强度越大， 增加光子中子转换目标体内X射线的传播距离。 根据本发明的光中子转化靶可以充分利用X射线束，以增加光子酮的产率。

公开(公告)号：US07722251B2

公开(公告)日：2010-05-25

申请号：US12204525

申请日：2008-09-04

Applicant: Kejun Kang ,  Ziran Zhao ,  Hua Peng ,  Zhiqiang Chen ,  Yuanjing Li ,  Yinong Liu ,  Li Zhang ,  Yaohong Liu ,  Zhizhong Liang ,  Dongmao Li ,  Cong Liu ,  Huabin Tan ,  Yongpeng Liu ,  Xinhui Duan ,  Xueyou Zhou

Inventor： Kejun Kang ,  Ziran Zhao ,  Hua Peng ,  Zhiqiang Chen ,  Yuanjing Li ,  Yinong Liu ,  Li Zhang ,  Yaohong Liu ,  Zhizhong Liang ,  Dongmao Li ,  Cong Liu ,  Huabin Tan ,  Yongpeng Liu ,  Xinhui Duan ,  Xueyou Zhou

IPC: H05G1/02 ,  G01N23/083

CPC classification number: G01V5/0008

Abstract: A device for inspecting contraband in an aviation cargo container includes: a turntable and a scanning system, the scanning system including a radiation source; a detector; a radiation source mounting structure; and a detector mounting structure for mounting the detector. Each of said radiation source mounting structure and said detector mounting structure includes at least one column assembly. The radiation source and the detector are mounted on the column assembly and allowed to synchronously ascend and descend along said column assembly. By combining different movement modes of the turntable and the scanning system, the device of the present invention can scan the object in various scanning modes. The device is stable in structure, convenient in installation, and occupies a small space. The device can inspect aviation containers over two meters long and/or over two meters wide and achieve a relatively high passing rate of the objects.

Abstract translation: 一种用于在航空货物集装箱中检查违禁品的装置包括：转台和扫描系统，所述扫描系统包括辐射源; 检测器 辐射源安装结构; 以及用于安装检测器的检测器安装结构。 所述辐射源安装结构和所述检测器安装结构中的每一个包括至少一个柱组件。 辐射源和检测器安装在柱组件上，允许沿着柱组件同步地上升和下降。 通过组合转盘和扫描系统的不同移动模式，本发明的装置可以以各种扫描模式扫描对象。 该装置结构稳定，安装方便，占地面积小。 该装置可以检查两米长和/或两米以上的航空集装箱，达到相对较高的通过率。

公开(公告)号：US07663109B2

公开(公告)日：2010-02-16

申请号：US11955711

申请日：2008-03-12

Applicant: Kejun Kang ,  Zhiqiang Chen ,  Qitian Miao ,  Yuanjing Li ,  Nan Jiang ,  Hua Peng ,  Xuewu Wang ,  Jinning Liang ,  Shangmin Sun ,  Zhizhong Liang ,  Quanwei Song ,  Yucheng Wu ,  Yanjun Han ,  Guang Yang ,  Bin Hu ,  Jingyu Gu

Inventor： Kejun Kang ,  Zhiqiang Chen ,  Qitian Miao ,  Yuanjing Li ,  Nan Jiang ,  Hua Peng ,  Xuewu Wang ,  Jinning Liang ,  Shangmin Sun ,  Zhizhong Liang ,  Quanwei Song ,  Yucheng Wu ,  Yanjun Han ,  Guang Yang ,  Bin Hu ,  Jingyu Gu

IPC: G01F23/00 ,  G01N23/04 ,  H05G1/02

CPC classification number: G01V5/0008 ,  G01V5/0016

Abstract: The present invention discloses a mobile cantilever door-type container inspection system, in the art of radiation scanning imaging inspection technology. The system according to the present invention comprises a moveable scanning apparatus formed by a scanning frame and a remote control device, wherein the scanning frame comprises a radiation source and some detectors, wherein the radiation source or an apparatus cabin wherein the radiation source is disposed is connected with an L-shaped cantilever structure to form a door-type scanning frame, wherein beneath the radiation source or the apparatus cabin wherein the radiation source is disposed are provided with rollers that can reciprocatingly move on rails and are controlled by drive means. The detectors are disposed in a cross beam and a vertical beam of the cantilever structure of the door-type scanning frame. Rays of the radiation source are right in alignment with rows of detectors in the cantilever structure. The container truck to be inspected can pass through the door-like frame formed by the door-type scanning frame. Due to the cantilever structure, the inspection system is advantageous in stable operation, good-quality images, and high reliability.

Abstract translation: 本发明公开了一种在辐射扫描成像检测技术领域的移动式悬臂门式容器检查系统。 根据本发明的系统包括由扫描框架和遥控装置形成的可移动扫描装置，其中扫描框架包括辐射源和一些检测器，其中辐射源或其中设置辐射源的装置舱是 与L形悬臂结构连接以形成门型扫描框架，其中设置放射源的辐射源或设备舱下方设置有能够在轨道上往复运动并由驱动装置控制的辊。 检测器设置在门型扫描框架的悬臂结构的横梁和垂直梁中。 辐射源的光线与悬臂结构中的检测器行对齐。 要检查的集装箱车可以通过由门型扫描架形成的门状框架。 由于悬臂结构，检测系统运行平稳，图像质量好，可靠性高。