知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

30 条记录 (耗时 0.016 秒)

    Security check system and method
    2.
    发明授权
    Security check system and method 有权

    公开(公告)号：US10810437B2

    公开(公告)日：2020-10-20

    申请号：US15822920

    申请日：2017-11-27

    申请人： Nuctech Company Limited

    发明人： Zhiqiang Chen ,  Li Zhang ,  Gang Peng ,  Zhisheng Dai ,  Yunda Sun ,  Dong Li

    IPC分类号： G06K9/00 ,  G06K9/46 ,  G06K9/78 ,  G06T7/00 ,  G08B7/06

    摘要： The present disclosure relates to a security check system and method. The present disclosure provides a security check system for identifying objects of interest from multiple objects, comprising: an object-of-interest determining device for determining whether an object is an object of interest; an image mark applying device for acquiring images related to selected objects among the multiple objects and recording image marks of the selected objects; and a mark detecting device for detecting the image marks, wherein the security check system is configured to identify whether the object is the object of interest based on the detection of the mark detecting device and outputs a warning accordingly.

    CT systems and methods thereof
    7.
    发明授权
    CT systems and methods thereof 有权

    公开(公告)号：US09746579B2

    公开(公告)日：2017-08-29

    申请号：US14576737

    申请日：2014-12-19

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： Li Zhang ,  Zhiqiang Chen ,  Qingping Huang ,  Xin Jin ,  Yunda Sun ,  Le Shen ,  Ji Zhao

    IPC分类号： A61B6/00 ,  G01V5/00 ,  G01N23/04 ,  G01T7/08 ,  G06T11/00

    CPC分类号： G01V5/005 ,  G01N23/046 ,  G01T7/08 ,  G06T11/003 ,  G06T2207/10072 ,  G06T2211/40

    摘要： A CT system and method thereof are disclosed. The system includes: a conveyor mechanism; a first scanning stage configured to scan the object and generate a first digital signal; a second scanning stage spaced from the first scanning stage at a preset distance in a direction of the object's movement; a processing device configured to reconstruct a CT image of the object at a first image quality based on the first digital signal, and analyze the CT image; and a control device configured to adjust a scanning parameter of the second scanning stage based on an analysis result of the processing device to cause the second scanning stage to output a second digital signal. The processing device reconstructs a CT image of the object at a second image quality higher than the first image quality at least based on the second digital signal. The system takes full advantage of the distributed ray sources which replace the normal slip ring technology.

    X-ray detection system and method
    10.
    发明授权
    X-ray detection system and method 有权

    公开(公告)号：US10942290B2

    公开(公告)日：2021-03-09

    申请号：US16626169

    申请日：2019-05-16

    申请人： Nuctech Company Limited

    发明人： Li Zhang ,  Zhiqiang Chen ,  Yunda Sun ,  Xin Jin ,  Ming Chang ,  Xiaofei Xu

    IPC分类号： G01N23/20091 ,  G01V5/00

    摘要： The present application discloses an X-ray detection system and method. The detection system includes: a beam source generator, first detectors, a second detector, a collimating device and a processor. The first detectors and the second detector are alternately arranged in a transmission direction of an object to be detected. The beam source generator emits a plurality of columns of beam signals, wherein each column of beam signals comprises a plurality of beam signals; the first detectors receive a plurality of columns of transmitted beam signals passing through the object; the collimating device performs a specificity selection from a plurality of columns of scattered beam signals passing through the object; the second detector receives scattered beam signals selected by the collimating device; and the processor determines a detection result of the object according to the plurality of columns of transmitted beam signals and the selected scattered beam signals.