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    X-RAY PHASE-CONTRAST IMAGING SYSTEM AND IMAGING METHOD
    112.
    发明申请
    X-RAY PHASE-CONTRAST IMAGING SYSTEM AND IMAGING METHOD 审中-公开

    公开(公告)号：US20170227476A1

    公开(公告)日：2017-08-10

    申请号：US15328437

    申请日：2015-11-02

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Li Zhang ,  Zhiqiang CHEN ,  Xiaolei JIANG ,  Xiaohua ZHU ,  Xin JIN

    IPC: G01N23/04

    CPC classification number: G01N23/046 ,  G01N23/04 ,  G01N2223/3306 ,  G01N2223/401 ,  G01N2223/408 ,  G21K2207/005

    Abstract: The present disclosure relates to X-ray imaging systems and methods. An exemplary system may comprise a distributed X-ray source arrangement, a fixed grating module, an X-ray detecting device, and a computer workstation. In one illustrative implementation, X-ray sources of the distributed incoherent X-ray source arrangement may sequentially generate and emit X-rays to an object to be detected. Further, for each exposure, the X-ray detecting device may receive the X-rays, wherein after a series of stepping exposures and corresponding data acquisitions, at each pixel of the X-ray detecting device, X-ray intensities are represented as an intensity curve; the intensity curve may be compared to an intensity curve in the absence of the object to be detected, and a pixel value at each pixel may be obtained from a variation of the intensity curves; and image information of the object to be detected may be obtained according to such pixel values.

    SAMPLE INJECTION DEVICE AND METHOD FOR SAMPLE COLLECTION AND SAMPLE THERMAL DESORPTION, AND TRACE DETECTION APPARATUS
    114.
    发明申请
    SAMPLE INJECTION DEVICE AND METHOD FOR SAMPLE COLLECTION AND SAMPLE THERMAL DESORPTION, AND TRACE DETECTION APPARATUS 审中-公开

    公开(公告)号：US20170176299A1

    公开(公告)日：2017-06-22

    申请号：US15117086

    申请日：2015-12-28

    Applicant: Nuctech Company Limited

    Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Weiping ZHU ,  Huishao HE ,  Qiufeng MA ,  Yaohong LIU ,  Xiang ZOU ,  Jianping CHANG

    IPC: G01N1/02 ,  H01J49/04 ,  G01N27/62 ,  G01N1/22 ,  G01N1/40

    CPC classification number: G01N1/02 ,  G01N1/2211 ,  G01N1/2214 ,  G01N1/2273 ,  G01N1/38 ,  G01N1/405 ,  G01N1/42 ,  G01N27/622 ,  G01N30/08 ,  G01N2030/128 ,  H01J49/0422 ,  H01J49/0459 ,  H01J49/0468

    Abstract: The present invention discloses a sample injection device for sample collection and sample thermal desorption. The device comprises: a sample collection structure; a piston type adsorber having an adsorption cavity capable of being arranged to be in communication with the sample collection structure; a piston cylinder defining a piston chamber that is configured for accommodating the piston type adsorber and configured to be in communication with the adsorption cavity; a thermal desorption chamber that is configured to be in communication with the adsorption cavity and the piston chamber and is configured to thermally desorb the sample adsorbed in the adsorption cavity; and a pump that is configured to be in communication with the piston chamber via a conduit and is configured to pump a sample diffused in an ambient gas into the adsorption cavity through the sample collection structure, the adsorption cavity being configured to adsorb the sample collected by the sample collection structure; the piston type adsorber is configured to be movable between a sample collecting position where the adsorption cavity is located outside the thermal desorption chamber and in communication with the sample collection structure so as to adsorb the sample collected by the sample collection structure and a sample desorbing position where the adsorption cavity is located inside the thermal desorption chamber so that the adsorbed sample is thermally desorbed in the thermal desorption chamber. There are also provided a method of collecting and desorbing a sample by using the abovementioned device, and a trace detection apparatus.

    CT DETECTION METHOD AND CT DEVICE
    116.
    发明申请
    CT DETECTION METHOD AND CT DEVICE 审中-公开
    CT检测方法和CT设备

    公开(公告)号：US20160189403A1

    公开(公告)日：2016-06-30

    申请号：US14979259

    申请日：2015-12-22

    Applicant: GRANDPECT COMPANY LIMITED ,  NUCTECH COMPANY LIMITED

    Inventor： Yongshun XIAO ,  Zhiqiang CHEN ,  Ming CHANG ,  Ziran ZHAO

    IPC: G06T11/00 ,  G06T7/00 ,  G06T3/60 ,  G01N23/04

    CPC classification number: G01N23/046 ,  G01N2223/3306 ,  G06T11/005 ,  G06T2211/421

    Abstract: A CT detection method is provided, comprising the steps of: (1) scanning circumferentially an object to be detected by means of X-ray according to a preset angle sampling value, which represents the number of sampling points in one circle, so as to obtain a group of projection sampling data in different projection angles, the preset angle sampling value being greater than 1000; (2) processing the projection sampling data so as to obtain projection data of a plurality of virtual sub-focuses equivalent to a large focus of radiation source in a CT system; and (3) implementing an image reconstruction according to the projection data of the plurality of virtual sub-focuses.

    Abstract translation: 提供了一种CT检测方法，包括以下步骤：（1）根据表示一个圆圈中的取样点数量的预设角度采样值，通过X射线沿周向扫描待检测物体，以便 以不同的投影角度获取一组投影采样数据，预设角度采样值大于1000; （2）处理投影采样数据，以获得与CT系统中的大量辐射源相当的多个虚拟子焦点的投影数据; 和（3）根据多个虚拟子焦点的投影数据实现图像重建。

    VEHICLE INSPECTION SYSTEM AND METHOD WITH VEHICLE REFERENCE IMAGE RETRIEVAL AND COMPARISON FUNCTION
    118.
    发明申请
    VEHICLE INSPECTION SYSTEM AND METHOD WITH VEHICLE REFERENCE IMAGE RETRIEVAL AND COMPARISON FUNCTION 有权
    车辆检查系统及车辆参考图像检索与比较功能的方法

    公开(公告)号：US20160178790A1

    公开(公告)日：2016-06-23

    申请号：US14970679

    申请日：2015-12-16

    Applicant: Nuctech Company Limited

    Inventor： Jianmin LI ,  Ying LI ,  Yulan LI ,  Jianping GU ,  Yuanjing LI ,  Zhiqiang CHEN

    IPC: G01V5/00 ,  G06K9/52 ,  G06T7/00 ,  G06T7/60 ,  G01N23/04 ,  G06K9/62

    CPC classification number: G01V5/0016 ,  G01N23/04 ,  G01N2223/639 ,  G01V5/0008 ,  G06K9/00624 ,  G06K9/52 ,  G06K9/6215 ,  G06K2209/09 ,  G06K2209/23 ,  G06T7/001 ,  G06T7/60 ,  G06T7/74 ,  G06T2207/10116 ,  G06T2207/30112 ,  G06T2207/30248 ,  G06T2207/30268

    Abstract: A vehicle inspection method is disclosed, comprising steps of: implementing a ray scanning inspection on an inspected vehicle, so as to obtain a ray scanning inspection image of the inspected vehicle; extracting vehicle characteristic information; comparing the vehicle characteristic information of the inspected vehicle to vehicle reference characteristics stored in a database, selecting a closest vehicle reference characteristic which is closest to the vehicle characteristic information, and finding out a closest ray transmission reference image on the basis of a corresponding relationship between the vehicle reference characteristics and ray transmission reference images stored in the storage unit; determining a first distinguishing area of the ray scanning inspection image from the closest ray transmission reference image by comparing the ray scanning inspection image of the inspected vehicle to the closest ray transmission reference image. A vehicle inspection system is also disclosed.

    Abstract translation: 公开了一种车辆检查方法，包括以下步骤：对被检查车辆进行射线扫描检查，以获得被检查车辆的射线扫描检查图像; 提取车辆特征信息; 将被检查车辆的车辆特性信息与存储在数据库中的车辆参考特征进行比较，选择最接近车辆特性信息的最近车辆基准特性，并且基于相应的关系来找出最近的射线发射参考图像 存储在存储单元中的车辆参考特性和射线透射参考图像; 通过将检查车辆的射线扫描检查图像与最近的射线透射参考图像进行比较，从最近的射线透射参考图像确定射线扫描检查图像的第一区域。 还公开了车辆检查系统。

    SYSTEM AND METHOD FOR CUSTOMS IN-TRANSIT SUPERVISION
    119.
    发明申请
    SYSTEM AND METHOD FOR CUSTOMS IN-TRANSIT SUPERVISION 审中-公开
    海关监督管理系统和方法

    公开(公告)号：US20160026973A1

    公开(公告)日：2016-01-28

    申请号：US14806280

    申请日：2015-07-22

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Xianghao WU ,  Limin LIU ,  Jundi DAI

    IPC: G06Q10/08

    CPC classification number: G06Q10/0831 ,  G06Q10/08 ,  G06Q10/083 ,  G06Q10/0833

    Abstract: The disclosure provides a system and a method for customs in-transit supervision. The system comprises: a port clearance subsystem configured to collect and process information of a supervised object at a port; a risk management subsystem configured to determine an in-transit supervision scheme for the supervised object based on a risk level of the supervised object; an in-transit supervision apparatus configured to supervise the supervised object in transit according to the in-transit supervision scheme; and a central supervision subsystem configured to conduct information interaction with the port clearance subsystem, the risk management system and the in-transit supervision apparatus and transmit instructions for controlling the subsystems and the apparatus. By introducing comparison between origin port information and destination port information and a risk management mechanism, the system and the method according to the disclosure improves the specificity, efficiency and intensity of supervision.

    Abstract translation: 本公开提供了海关过境监管的制度和方法。 该系统包括：端口清除子系统，被配置为在端口处收集和处理被监督对象的信息; 风险管理子系统，被配置为基于被监督对象的风险水平来确定被监督对象的过境监督方案; 一种过境监督装置，其被配置为根据所述过境监督方案来监督被监督对象在过境中; 配置为与港口清关子系统，风险管理系统和中转监督装置进行信息交互的中央监督子系统，并发送用于控制子系统和装置的指令。 通过引入起点信息与目的地港口信息与风险管理机制的比较，根据本公开的制度和方法提高了监督的特异性，效率和强度。

    CT SYSTEM FOR SECURITY CHECK AND METHOD THEREOF
    120.
    发明申请
    CT SYSTEM FOR SECURITY CHECK AND METHOD THEREOF 有权
    用于安全检查的CT系统及其方法

    公开(公告)号：US20160012647A1

    公开(公告)日：2016-01-14

    申请号：US14748383

    申请日：2015-06-24

    Applicant: Nuctech Company Limited

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Shuo WANG ,  Yunda SUN ,  Qingping HUANG ,  Zhi TANG

    IPC: G06T19/20 ,  G06T15/00 ,  G06T15/20 ,  G06T11/20 ,  G06T7/60 ,  G06T7/00 ,  G06K9/62 ,  G06K9/46 ,  G06K9/52

    CPC classification number: G06T11/20 ,  G01V5/0008 ,  G01V5/005 ,  G06K9/46 ,  G06K9/52 ,  G06K9/6218 ,  G06K2009/4666 ,  G06T7/50 ,  G06T7/60 ,  G06T7/75 ,  G06T15/005 ,  G06T15/20 ,  G06T19/20

    Abstract: A CT system for security check and a method thereof are provided. The method includes: reading inspection data of an inspected object; inserting at least one three-dimensional (3D) Fictional Threat Image (FTI) into a 3D inspection image of the inspected object, which is obtained from the inspection data; receiving a selection of at least one region in the 3D inspection image including the 3D FTI or at least one region in a two-dimensional (2D) inspection image including a 2D FTI corresponding to the 3D FTI, wherein the 2D inspection image is obtained from the 3D inspection image or is obtained from the inspection data; and providing a feedback of the 3D inspection image including at least one 3D FTI in response to the selection. With the above solution, it is convenient for a user to rapidly mark a suspected object in the CT image, and provides a feedback of whether a FTI is included.

    Abstract translation: 提供了一种用于安全检查的CT系统及其方法。 该方法包括：读取检查对象的检查数据; 将至少一个三维（3D）虚构威胁图像（FTI）插入到从检查数据获得的被检查对象的3D检查图像中; 在包括3D FTI的3D检查图像中的至少一个区域的选择或者包括对应于3D FTI的2D FTI的二维（2D）检查图像中的至少一个区域，其中2D检查图像从 3D检查图像或从检查数据获得; 以及响应于所述选择提供包括至少一个3D FTI的3D检查图像的反馈。 利用上述解决方案，用户可以快速地标记CT图像中的可疑对象，并提供是否包括FTI的反馈。

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