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    INSPECTION SYSTEM AND INSPECTION METHOD
    1.
    发明申请
    INSPECTION SYSTEM AND INSPECTION METHOD 有权

    公开(公告)号：US20250108979A1

    公开(公告)日：2025-04-03

    申请号：US18834382

    申请日：2023-12-25

    Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Liang LI ,  Mingzhi HONG ,  Zinan WANG ,  Lei XIE ,  Ming CHANG

    IPC: B65G43/08 ,  B65G47/28 ,  B65G47/82

    Abstract: An inspection system includes a conveying mechanism, a pushing mechanism, a positioning mechanism and an inspection mechanism. The conveying mechanism is configured to convey an object to be inspected. The pushing mechanism is suitable for pushing the object to be inspected in a conveying direction of the conveying mechanism, so as to push the object to be inspected to a first positioning plane and a second positioning plane. The positioning mechanism includes a positioning portion. The positioning portion may move in the conveying direction of the conveying mechanism, so as to define the first positioning plane and the second positioning plane. The object to be inspected abuts against the positioning portion on the first positioning plane and the second positioning plane. The inspection mechanism is suitable for inspecting the object to be inspected when the object to be inspected is located on the first positioning plane and the second positioning plane.

    CT IMAGING SYSTEM AND CT DETECTION DEVICE
    2.
    发明申请
    CT IMAGING SYSTEM AND CT DETECTION DEVICE 有权

    公开(公告)号：US20250099045A1

    公开(公告)日：2025-03-27

    申请号：US18832490

    申请日：2023-12-25

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Liang LI ,  Mingzhi HONG ,  Zinan WANG ,  Yongjie XIA ,  Ming Chang

    IPC: A61B6/03 ,  A61B6/10

    Abstract: The present disclosure provides a CT imaging system and a CT detection device. The CT imaging system includes: a connecting plate, a strong supporting frame, a weak supporting frame, an emitter, a detector, an electrical component and a shielding box. The connecting plate is annular and has a rotating axis. The strong supporting frame is connected to the connecting plate on a side of the connecting plate and includes a first strong supporting frame and a second strong supporting frame distributed at an interval in a circumferential direction of the connecting plate. The weak supporting frame is connected to the connecting plate on a same side of the connecting plate as the strong supporting frame. The emitter is connected to the first strong supporting frame. The detector is connected to the second strong supporting frame. The electrical component is connected to the weak supporting frame. The shielding box is connected to at least one weak supporting frame.

    RADIATION PROTECTION ARRANGEMENT AND SECURITY INSPECTION DEVICE
    3.
    发明公开
    RADIATION PROTECTION ARRANGEMENT AND SECURITY INSPECTION DEVICE 审中-公开

    公开(公告)号：US20240361487A1

    公开(公告)日：2024-10-31

    申请号：US18690097

    申请日：2022-07-22

    Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

    Inventor： Li ZHANG ,  Yunda SUN ,  Xin JIN ,  Wuyang LIANG ,  Ming CHANG ,  Le SHEN

    IPC: G01V5/22

    CPC classification number: G01V5/22

    Abstract: A radiation protection arrangement, including: a housing, the housing including a first port and a second port; and a tray, the tray having an accommodation space. The tray is allowed to pass through a channel within the housing. The tray has a first end wall, a second end wall, and a bottom portion connected between the first end wall and the second end wall. A shape of the first end wall and/or a shape of the second end wall are/is configured to fit with an inner wall of the housing, so as to block a radiation from leaving the channel from the accommodation space through the second port or the first port. Further provided is a security inspection device, including the radiation protection arrangement.

    RAY SCANNING APPARATUS
    5.
    发明公开
    RAY SCANNING APPARATUS 审中-公开

    公开(公告)号：US20240248048A1

    公开(公告)日：2024-07-25

    申请号：US18575794

    申请日：2022-07-07

    Applicant: Nuctech Company Limited ,  Tsinghua University

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Qingping HUANG ,  Yong ZHOU ,  Zhenhua ZHAO ,  Hui DING ,  Xin JIN ,  Chao JI

    IPC: G01N23/046

    CPC classification number: G01N23/046 ,  G01N2223/308 ,  G01N2223/3305 ,  G01N2223/3308 ,  G01N2223/401 ,  G01N2223/419 ,  G01N2223/5015

    Abstract: A ray scanning apparatus, including: a conveying device; a ray source assembly including a plurality of ray source modules arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area; and a detector assembly including a plurality of detector sets arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area, where the opening of the non-enclosed structure of the ray source assembly is opposite to the opening of the non-enclosed structure of the detector assembly, the plurality of detector sets are fixed in a same plane perpendicular to the conveying direction of the object under inspection, and the plurality of ray source modules of the ray source assembly are arranged in a plurality of different planes perpendicular to the conveying direction of the object under inspection.

    METHOD OF TRAINING IMAGE DECOMPOSITION MODEL, METHOD OF DECOMPOSING IMAGE, ELECTRONIC DEVICE, AND STORAGE MEDIUM
    6.
    发明公开
    METHOD OF TRAINING IMAGE DECOMPOSITION MODEL, METHOD OF DECOMPOSING IMAGE, ELECTRONIC DEVICE, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20240037816A1

    公开(公告)日：2024-02-01

    申请号：US18225060

    申请日：2023-07-21

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Li ZHANG ,  Yunda SUN ,  Zheng HU ,  Gang FU ,  Qiang LI

    IPC: G06T11/00 ,  G06T5/50

    CPC classification number: G06T11/006 ,  G06T5/50 ,  G06T2207/20221 ,  G06T2207/20084 ,  G06T2207/20081

    Abstract: A method of training an image decomposition model, a method of decomposing an image, an electronic device, and a storage medium are provided. The method of training the image decomposition model includes: acquiring a training set; inputting first and second training images into first and second adversarial neural networks respectively, so as to determine a first loss function value; inputting a third training image into the first and second adversarial neural networks respectively, so as to determine a second loss function value; determining a third loss function value according to a comparison result between an acquired fusion image and the third training image, where the fusion image is generated by fusing generated images of the first and second adversarial neural networks, and adjusting a parameter of the image decomposition model according to at least one of the first to third loss function values.

    IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE AND STORAGE MEDIUM
    9.
    发明申请
    IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20190206095A1

    公开(公告)日：2019-07-04

    申请号：US16235882

    申请日：2018-12-28

    Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

    Inventor： Yuxiang XING ,  Kaichao LIANG ,  Le SHEN ,  Li ZHANG ,  Hongkai YANG ,  Kejun KANG ,  Zhiqiang CHEN ,  Jianmin LI ,  Yinong LIU

    IPC: G06T11/00 ,  G06N3/08

    CPC classification number: G06T11/003

    Abstract: An image processing method, comprising: acquiring, by a CT scanning system, projection data of an object; and processing, by using a convolutional neural network, the projection data, to acquire an estimated image of the object. The convolutional neural network comprises: a projection domain network for processing input projection data to obtain estimated projection data; an analytical reconstruction network layer for performing analytical reconstruction to obtain a reconstructed image; an image domain network for processing the reconstructed image to obtain an estimated image, a projection layer for performing a projection operation by using a system projection matrix of the CT scanning system, to obtain a projection result of the estimated image; and a statistical model layer for determining consistency among the input projection data, the estimated projection data, and the projection result of the estimated image based on a statistical model.

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