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    Smart security inspection system and method
    42.
    发明授权
    Smart security inspection system and method 有权

    公开(公告)号：US10474897B2

    公开(公告)日：2019-11-12

    申请号：US15271151

    申请日：2016-09-20

    Applicant: Nuctech Company Limited

    Inventor： Jia Xu ,  Hu Tang ,  Qingping Huang ,  Ying Fan

    IPC: G06F9/00 ,  G06T7/00 ,  G06K9/00

    Abstract: The disclosure relates to smart security inspection systems and methods. One illustrative method may comprise distributing, by the system, a security inspection tray to a person to be inspected through an unpacking station and associating/binding information regarding the person to be inspected to a baggage identifier, and identifying the baggage identifier, obtaining the information of the person to be inspected according to the baggage identifier, obtaining pre-stored risk information according to the information of the person to be inspected, performing differentiated security inspections on the person to be inspected and/or baggage according to the risk information, and associating/binding the obtained data to the information of the person to be inspected. Further implementations relate to features such as processing identity information, controlling flow in the baggage handling area(s), imaging baggage, packing the baggage, and finishing the security inspection.

    Inspection devices for quarantine
    43.
    发明授权
    Inspection devices for quarantine 有权

    公开(公告)号：US10416344B2

    公开(公告)日：2019-09-17

    申请号：US15279239

    申请日：2016-09-28

    Applicant: CINTS CO. LTD. ,  NUCTECH COMPANY LIMITED

    Inventor： Qitian Miao ,  Zhiqiang Chen ,  Li Zhang ,  Ming Huang ,  Yunda Sun ,  Ming Hu ,  Qingping Huang ,  Jie Xia ,  Lei Lei

    IPC: G01V5/00

    Abstract: An inspection device for quarantine that includes a dual-energy CT apparatus capable of distinguishing substances, a DR apparatus, a substance identification system capable of enhancing display of an object (plant, animal, meat, etc.) focused for quarantine and automatically so labeling, and an image processing system capable of highlighting a suspect of quarantine and providing a corresponding automatic alarm. Compared to the prior art, the present disclosure can highlight a focused object for quarantine, which may improve accuracy and efficiency of inspection for quarantine at a port.

    Security inspection passage and security inspection apparatus
    45.
    发明授权
    Security inspection passage and security inspection apparatus 有权

    公开(公告)号：US10353108B2

    公开(公告)日：2019-07-16

    申请号：US15272175

    申请日：2016-09-21

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Qingping Huang ,  Jia Xu ,  Mingzhi Hong ,  Yanxia Zheng

    IPC: G01N23/04 ,  G01V5/00 ,  G01N23/083

    Abstract: A security inspection passage and a security inspection apparatus. The security inspection passage includes: an inspection passage main portion that extends along a first direction and through which an item to be inspected passes so as to receive an inspection; an inspection passage entrance end portion configured to be oriented in a direction that is angled at a first angle relative to the first direction; and an inspection passage exit end portion configured to be oriented in a direction that is angled at a second angle relative to the first direction, wherein the first angle and/or the second angle are/is not zero.

    CT systems and methods thereof
    48.
    发明授权
    CT systems and methods thereof 有权

    公开(公告)号：US09786041B2

    公开(公告)日：2017-10-10

    申请号：US14576705

    申请日：2014-12-19

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Zhiqiang Chen ,  Li Zhang ,  Ji Zhao ,  Qingping Huang ,  Xin Jin

    IPC: G06K9/00 ,  G06T7/00 ,  G01V5/00

    CPC classification number: G06T7/0002 ,  G01V5/005 ,  G06T2207/30112

    Abstract: A CT system and method thereof are discloses. The system includes: a fixed multi-plane multi-source X-ray generation device and a control system thereof that provide X-ray source used in luggage inspection; a single-energy, pseudo-dual-energy or spectral detector system and data transfer system that receive perspective data of X ray penetrating the luggage, and transfer the data to a computer for processing; a conveyor and a control system thereof that control a speed for moving the luggage forth and back, and perform tomogram scanning; and a host computer system that performs tomogram reconstruction and provides man-machine interaction. The system takes full advantage of characteristics, such as high speed and stability, brought by the distributed ray sources which replace the normal slip ring technology. The system also adopts the idea of inverse-geometry CT, and reduces detector area and cost by increasing the number of ray sources. With the reduction of detector area, cone-beam artifacts and cup-shape artifacts caused by scattering are also reduced, and influence of the oblique effect on registration of dual-energy data is suppressed.

    Spiral CT systems and reconstruction methods
    49.
    发明授权
    Spiral CT systems and reconstruction methods 有权
    螺旋CT系统和重建方法

    公开(公告)号：US09466137B2

    公开(公告)日：2016-10-11

    申请号：US14708866

    申请日：2015-05-11

    Applicant: Nuctech Company Limited ,  Tsinghua University

    Inventor： Li Zhang ,  Zhiqiang Chen ,  Le Shen ,  Yuxiang Xing ,  Xin Jin ,  Qingping Huang

    IPC: G06K9/00 ,  G06T11/00 ,  A61B6/03 ,  A61B6/02 ,  A61B6/00 ,  G06T7/00

    CPC classification number: G06T11/006 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4266 ,  A61B6/5205 ,  G06T7/0012 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2211/421

    Abstract: The present disclosure discloses a spiral CT system and a reconstruction method thereof. In some embodiments, it is proposed that data missing due to a large pitch is compensated by weighting the complementary projection data of the projection data obtained using the spiral CT system. After the data is complemented, the projection data is rebinned as cone parallel beam data, cone-angle cosine weighting and one-dimensional filtering are implemented on the rebinned data, and parallel beam back projection is finally implemented on the filtered data, to obtain the reconstructed images. In some embodiments, with the above method, the speed of the belt can be increased by more than one time in a case that the existing area of the detectors and the existing speed of the slip ring are unchanged, thereby improving the pass rate of the luggage and maintaining the quality of the reconstructed images unchanged.

    Abstract translation: 本公开公开了一种螺旋CT系统及其重建方法。 在一些实施例中，提出通过对使用螺旋CT系统获得的投影数据的互补投影数据进行加权来补偿由于大音调而丢失的数据。 数据补充后，将投影数据重新设置为锥形平行光束数据，对重定位数据进行锥角余弦加权和一维滤波，最后在滤波数据上实现平行光束反投影，获得 重建图像。 在一些实施例中，利用上述方法，在检测器的现有区域和滑环的现有速度不变的情况下，带的速度可以增加多于一次，从而提高了传感器的通过率 行李保持重建图像的质量不变。

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