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    MULTI-ENERGY SPECTRUM X-RAY GRATING-BASED IMAGING SYSTEM AND IMAGING METHOD
    54.
    发明申请
    MULTI-ENERGY SPECTRUM X-RAY GRATING-BASED IMAGING SYSTEM AND IMAGING METHOD 审中-公开

    公开(公告)号：US20170234811A1

    公开(公告)日：2017-08-17

    申请号：US15328881

    申请日：2015-10-28

    Applicant: Nuctech Company Limited

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

    IPC: G01N23/04 ,  G01N23/087

    CPC classification number: G01N23/046 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/4291 ,  A61B6/463 ,  A61B6/482 ,  A61B6/484 ,  G01N23/087 ,  G01N2223/401 ,  G01N2223/408 ,  G01N2223/419 ,  G01N2223/605

    Abstract: The present disclosure relates to a multi-spectrum X-ray grating-based imaging system and imaging method. The multi-spectrum X-ray grating-based imaging system according to the present disclosure comprises an incoherent X-ray source for emitting X-rays to irradiate an object to be detected, a grating module comprising a first absorption grating and a second absorption grating which are disposed in parallel to each other and are sequentially arranged in an X-ray propagation direction, and an energy-resolved detecting device for receiving the X-rays that have passed through the first absorption grating and the second absorption grating. One of the first absorption grating and the second absorption grating performs phase stepping actions within at least one period; during each phase stepping action, the incoherent X-ray source emits X-rays to irradiate the object to be detected; the energy-resolved detecting device receives the X-rays and performs spectrum identification of the X-rays; and after a series of phase stepping actions and data acquisitions over a period, at each pixel on the energy-resolved detecting device, X-ray intensities in each energy range are represented as an intensity curve.

    RADIOGRAPHY SYSTEMS BASED ON DISTRIBUTED RAY SOURCE
    58.
    发明申请
    RADIOGRAPHY SYSTEMS BASED ON DISTRIBUTED RAY SOURCE 审中-公开

    公开(公告)号：US20170122884A1

    公开(公告)日：2017-05-04

    申请号：US15301345

    申请日：2015-12-14

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Li ZHANG ,  Xin JIN ,  Huaping TANG ,  Qingping HUANG ,  Yunda SUN ,  Zhiqiang CHEN

    IPC: G01N23/04

    CPC classification number: G01N23/04 ,  G01N23/046 ,  G01N2223/3307 ,  G01N2223/423 ,  G01N2223/643 ,  G01V5/0041

    Abstract: The present disclosure discloses a radiography system including: a ray source, comprising a plurality of X-ray generators which are distributed on one or more planes intersected with a moving direction of an object being inspected; a detector module comprising a plurality of detection units; a data collection circuit; a controller, configured to control at least two X-ray generators of the plurality of X-ray generators in the ray source to generate X-rays alternately such that the object is scanned by the generated X-rays; and control the detector module and the data collection circuit to respectively obtain detection data corresponding to the at least two X-ray generators; and a data processing computer, configured to create images of the object being inspected in view angles of the at least two X-ray generators based on the detection data. The above embodiments may implement a multi-view-angle perspective imaging system within a single scan plane by utilizing a distributed X-ray source and reuse of the detectors.

    INSPECTION METHODS AND DEVICES
    59.
    发明申请
    INSPECTION METHODS AND DEVICES 有权
    检查方法和设备

    公开(公告)号：US20160335503A1

    公开(公告)日：2016-11-17

    申请号：US15034021

    申请日：2014-11-11

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Qiang LI ,  Jian ZHANG ,  Jianping GU ,  Jin CUI

    IPC: G06K9/00 ,  G06K9/46 ,  G06K9/40 ,  G06K9/32 ,  G06K9/42 ,  G06K9/62 ,  G06K9/38

    CPC classification number: G06K9/00771 ,  G06K9/00 ,  G06K9/3241 ,  G06K9/38 ,  G06K9/40 ,  G06K9/42 ,  G06K9/4642 ,  G06K9/627 ,  G06K2209/09

    Abstract: The present disclosure discloses an inspection method and device. The method comprises steps of acquiring a perspective image of an inspected object; processing the perspective image to obtain a region of interest; and automatically detecting the region of interest using a cigarette model, to determine whether the region of interest of the perspective image belongs to a cigarette. In the present disclosure, cigarette detection is implemented on a scanned image of goods, particularly a container, which can avoid the problem of detection vulnerability and poor effect of manual image judgment for the conventional manner, and is of significance in fighting against cigarette smuggling.

    Abstract translation: 本公开公开了一种检查方法和装置。 该方法包括获取被检查对象的透视图像的步骤; 处理透视图以获得感兴趣的区域; 并使用香烟模型自动检测感兴趣区域，以确定透视图像的感兴趣区域是否属于香烟。 在本公开中，香烟检测在商品的扫描图像，特别是容器上实现，其可以避免检测脆弱性的问题以及常规方式的手动图像判断的差的影响，并且对于打击卷烟走私具有重要意义。

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