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34 条记录 (耗时 0.015 秒)

    SCANNING IMAGING SYSTEM FOR SECURITY INSPECTION OF AN OBJECT AND IMAGING METHOD THEREOF
    1.
    发明公开
    SCANNING IMAGING SYSTEM FOR SECURITY INSPECTION OF AN OBJECT AND IMAGING METHOD THEREOF 审中-公开

    公开(公告)号：EP3460531A1

    公开(公告)日：2019-03-27

    申请号：EP18178449.7

    申请日：2018-06-19

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  SHEN, Le ,  HUANG, Qingping ,  SUN, Yunda ,  JIN, Xin ,  DING, Hui ,  XING, Yuxiang

    IPC分类号： G01V5/00

    摘要： A scanning imaging system for security inspection of an object and an imaging method thereof are disclosed, the system comprising: a conveying unit (101) configured for bringing the object to move along a conveying direction; a plurality of radiographic sources (102) at one side of the conveying unit, being arranged successively in a direction vertical to a plane, in which the conveying unit is located, configured for alternately emitting ray beams to form a scanning area; a linear detector array (103) at the other side of the conveying unit, being configured for detecting first projection images, which are formed after the ray beams emitted by the plurality of radiographic sources penetrate through the object, in the process of the object passing through the scanning area; an imaging unit configured for obtaining a first reconstructed image of the object based on the first projection images of the plurality of radiographic sources.

    OPERATION METHOD AND DEVICE RELATING TO SECURITY INSPECTION THREE-DIMENSIONAL CT IMAGE
    2.
    发明公开
    OPERATION METHOD AND DEVICE RELATING TO SECURITY INSPECTION THREE-DIMENSIONAL CT IMAGE 审中-公开
    操作方法和设备连接与三维CT图像的安全检查

    公开(公告)号：EP3130915A1

    公开(公告)日：2017-02-15

    申请号：EP15871897.3

    申请日：2015-12-16

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： ZHANG, Li ,  WANG, Shuo ,  SUN, Yunda ,  HUANG, Qingping

    IPC分类号： G01N23/04

    摘要： Provided are an operation method and device relating to a security inspection three-dimensional CT image, the method comprising: providing a security inspection three-dimensional CT image; selecting an object image from the three-dimensional image; and providing a response based on the selection. The present invention can acquire related information of the object image from the security inspection CT image by the selection and response performed with respect to the security inspection CT image, is practical, and provides effective reference information for image determination in the field of security inspection CT.

    摘要翻译： 本发明提供了在操作的方法和设备涉及安全检查三维CT图像，该方法包括：提供一个安全检查三维CT图像; 选择从所述三维图像的对象图像; 以及基于所述选择的响应。 本发明能够从由选择和响应相对于安全检查CT图像进行的安全检查的CT图像的对象图像的相关信息，是实用的，并且在安全检查CT的字段提供有效的参考信息用于图像判断 ，

    CALIBRATION ASSEMBLY, CALIBRATION PHANTOM AND CALIBRATION METHOD
    3.
    发明公开
    CALIBRATION ASSEMBLY, CALIBRATION PHANTOM AND CALIBRATION METHOD 审中-公开

    公开(公告)号：EP4201334A1

    公开(公告)日：2023-06-28

    申请号：EP22216583.9

    申请日：2022-12-23

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  SUN, Yunda ,  LI, Xinbin ,  ZHAO, Zhenhua ,  ZHAO, Tiao ,  JIN, Xin

    IPC分类号： A61B6/00 ,  G01N23/046 ,  G01N23/10 ,  G01T7/00

    摘要： Provided is a calibration assembly, including: a base; and a plurality of calibration wires dispersedly connected to the base, wherein an absorption capacity of the calibration wire for X-rays is greater than an absorption capacity of the base for X-rays Through a specific structure design of a plurality of calibration wires in the calibration assembly in the present disclosure, the calibration wires are dispersedly connected to the base, and taking advantage of the characteristics that the absorption capacity of the calibration wire for X-rays is greater than the absorption capacity of the base for X-rays, the above-mentioned calibration wires are applied to the calibration phantom, and the calibration phantom is scanned in the scanning system. By continuously adjusting the geometric parameter values in the imaging method, the optimal geometric parameter values that are closest to the real scanning system structure may be obtained, thereby improving the imaging effect of the scanning system.

    IMAGE DISPLAY METHOD, APPARATUS AND DEVICE, AND COMPUTER STORAGE MEDIUM
    4.
    发明公开
    IMAGE DISPLAY METHOD, APPARATUS AND DEVICE, AND COMPUTER STORAGE MEDIUM 审中-公开

    公开(公告)号：EP3901815A1

    公开(公告)日：2021-10-27

    申请号：EP19898062.5

    申请日：2019-09-10

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： ZHANG, Li ,  SUN, Yunda ,  ZHAO, Tiao ,  JIN, Xin ,  SHEN, Le ,  CHEN, Zhiqiang

    IPC分类号： G06K9/00 ,  G06T3/00

    摘要： This application discloses an image display method, apparatus and device and a computer storage medium. The image display method includes: determining object positions of a target object in multiple first images; processing the multiple first images based on the object positions and a target position and generating multiple second images in one-to-one correspondence with the multiple first images, wherein the target object is positioned at the target position in the second images respectively, and the target position is a same position in the multiple second images; and displaying the multiple second images. According to embodiments of the application, when the images are displayed, the target object can be always displayed at the target position, thereby facilitating the user to view the target object.

    TARGET OBJECT POSITIONING METHOD AND APPARATUS, DEVICE, MEDIUM, AND PROGRAM PRODUCT
    8.
    发明公开
    TARGET OBJECT POSITIONING METHOD AND APPARATUS, DEVICE, MEDIUM, AND PROGRAM PRODUCT 审中-公开

    公开(公告)号：EP4152254A1

    公开(公告)日：2023-03-22

    申请号：EP21803947.7

    申请日：2021-06-25

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： ZHANG, Li ,  TANG, Hu ,  SUN, Yunda ,  WANG, Shuo ,  LI, Xinbin ,  JIN, Xin

    IPC分类号： G06T7/11

    摘要： The present disclosure provides a method of positioning a target object, including: acquiring first three-dimensional volume data of a checked baggage; generating a projected image of the checked baggage in a direction based on the first three-dimensional volume data; segmenting second three-dimensional volume data from the first three-dimensional volume data based on the projected image; determining at least one envelope region for at least one object in the checked baggage based on the second three-dimensional volume data; and determining an envelope region of the target object from the at least one envelope region. The present disclosure further provides an apparatus of positioning a target object, a device, a medium and a program product.

    SECURITY INSPECTION DEVICE, SECURITY INSPECTION METHOD AND STORAGE SYSTEM
    9.
    发明公开
    SECURITY INSPECTION DEVICE, SECURITY INSPECTION METHOD AND STORAGE SYSTEM 审中-公开

    公开(公告)号：EP4075170A1

    公开(公告)日：2022-10-19

    申请号：EP20898979.8

    申请日：2020-10-15

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： JIN, Xin ,  SUN, Yunda ,  ZHANG, Li ,  CHEN, Zhiqiang ,  ZHAO, Tiao ,  SHEN, Le ,  CHANG, Ming ,  LIANG, Wuyang

    IPC分类号： G01V5/00

    摘要： According to the embodiments of the present disclosure, there is provided a security inspection device, a security inspection method, and a storage system. The security inspection device includes a ray source and a detector, and an inspection channel is defined between the ray source and the detector. The inspection channel includes, for example, two inspection channel segments, wherein the inspection channel segments are successively arranged, and an angle greater than zero is formed between extending directions of at least two inspection channel segments. The security inspection device further includes a conveying apparatus provided on the inspection channel. An absolute direction or orientation of the inspected object is kept unchanged during a process of being conveyed within the inspection channel.