公开(公告)号：US20180165633A1

公开(公告)日：2018-06-14

申请号：US15823066

申请日：2017-11-27

Applicant: Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Xianghao WU ,  Haitao ZHANG ,  Yongning CHEN

IPC: G06Q10/08 ,  G06Q50/28 ,  G07C9/00

CPC classification number: G06Q10/0833 ,  G06Q10/08 ,  G06Q50/28 ,  G07C9/00 ,  G07C9/00309 ,  G07C9/00912 ,  G07C2009/0092

Abstract: The present disclosure discloses an electronic lock device and system for smart logistics. The electronic lock device for smart logistics communicates with a data control device, and includes: a communication unit for receiving a control command; a storage unit for storing data information about a container locked by the electronic lock device; and a control unit configured to: if the control command received by the communication unit is a write command, control the communication unit to receive data information from the data control device, and store the received data information in the storage unit; and if the control command received by the communication unit is a read command, read data information from the storage unit, and send the read data information to the data control device through the communication unit.

公开(公告)号：US20180150951A1

公开(公告)日：2018-05-31

申请号：US15804195

申请日：2017-11-06

Applicant: Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Xianghao WU ,  Jundi DAI ,  Yange DU ,  Limin LIU

IPC: G06T7/00 ,  G06K9/46 ,  G06K9/62

CPC classification number: G06T7/001 ,  G01V5/0008 ,  G06K9/46 ,  G06K9/6202 ,  G06K9/6215 ,  G06K9/6267 ,  G06K2209/21 ,  G06T2207/30232

Abstract: The present application relates to a method of assisting analysis of a radiation image and a system using the same, which belongs to the field of image processing. A method of assisting analysis of a radiation image includes: acquiring a radiation image to be analyzed; acquiring customs declaration information of the radiation image to be analyzed; acquiring a feature-matched historical image from a typical image library according to the radiation image to be analyzed; and/or acquiring a standard image and/or detailed customs declaration information of the standard image according to the customs declaration information of the radiation image to be analyzed. The method of assisting analysis of a radiation image and the system using the same may assist an image inspection person to judge whether or not the current radiation image carries violation items, whether or not a concealing or missing report occurs and so on.

公开(公告)号：US20170329038A1

公开(公告)日：2017-11-16

申请号：US15411348

申请日：2017-01-20

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Junli LI ,  Xuewu WANG ,  Yaohong LIU ,  Zhi ZENG ,  Jianping GU ,  Song LIANG ,  Bicheng LIU ,  Guangming XU ,  Yongqiang WANG

IPC: G01V5/00

CPC classification number: G01V5/0016 ,  G01N2223/205 ,  G01T1/167 ,  G01T5/002 ,  G01T5/02 ,  G01V5/0025 ,  G01V5/0075 ,  G01V5/0091 ,  G06K9/6267

Abstract: The present application relates to a method, apparatus and system for inspecting an object based on a cosmic ray, pertaining to the technical field of radiometric imaging and safety inspection. The method includes: recording a movement trajectory of an inspected object by using a monitoring device; acquiring information of charged particles in the cosmic ray by using a position-sensitive detector, the information of charged particles comprising trajectory information of the charged particles; performing position coincidence for the movement trajectory and the trajectory information to determine the object; performing trajectory remodeling for the charged particles according to the information of charged particles; and identifying a material inside the moving object according to the trajectory remodeling. According to the present disclosure, pedestrians who are walking and moving are inspected by using the cosmic ray, and nuclear materials, drugs and explosive materials and the like carried by human bodies may be detected.

公开(公告)号：US20170309043A1

公开(公告)日：2017-10-26

申请号：US15129455

申请日：2015-12-23

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Liang LI ,  Zhiqiang CHEN ,  Kejun KANG ,  Li ZHANG ,  Ziran ZHAO ,  Yuxiang XING ,  Yongshun XIAO ,  Jianping GU ,  Juan ZHENG

IPC: G06T11/00 ,  G06T7/00

CPC classification number: G06T11/003 ,  G01N23/04 ,  G06T7/0002 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2207/30112 ,  G06T2211/408

Abstract: Disclosed is a dual-energy ray imaging method and system. The method comprises: calculating the mass thicknesses of the materials in the overlapped area of two materials by using a calibrated surface fitting method, and then decomposing a pair of original high-energy and low-energy data for this pixel into two high-low-energy data sets corresponding to the two materials, and finally calculating and acquiring the composition result of different materials for each pixel. The disclosure is especially advantageous in that the problem of error recognition of materials due to the two overlapped materials can be eliminated and the stratified imaging of multiple materials can be achieved, thereby improving the accuracy of the substance recognition and reducing the rate of false positive and false negative which is very important to the applications in the field of security check and anti-smuggling.

公开(公告)号：US20150378047A1

公开(公告)日：2015-12-31

申请号：US14748407

申请日：2015-06-24

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Xin JIN ,  Qingping HUANG ,  Le SHEN ,  Yunda SUN

IPC: G01V5/00 ,  G01T7/08

CPC classification number: G01V5/0041 ,  A61B6/4266 ,  G01T1/202 ,  G01T1/362 ,  G01T7/08 ,  G01V5/005

Abstract: The present disclosure discloses a detector device comprising a plurality of detector assemblies. Each detector assembly comprises at least one detection crystal units having a first energy response and those having a second energy response, which are both arranged along a first direction at intervals, each detection crystal unit having a first/second energy response including at least one detection crystals having a first/second energy response arranged along a second direction. The at least one detection crystal units having a first energy response and the at least one detection crystal units having a second energy response are, at least partially, alternatively arranged along the first direction when viewed from an incidence direction of the X-ray. The present disclosure also discloses a dual energy CT system having the detector device and a CT detection method using this system.

Abstract translation: 本公开公开了一种包括多个检测器组件的检测器装置。 每个检测器组件包括具有第一能量响应的至少一个检测晶体单元和具有第二能量响应的检测晶体单元，它们都沿着第一方向间隔排列，每个检测晶体单元具有包括至少一个检测的第一/第二能量响应 具有沿第二方向布置的第一/第二能量响应的晶体。 当从X射线的入射方向观察时，具有第一能量响应的至少一个检测晶体单元和具有第二能量响应的至少一个检测晶体单元至少部分地沿第一方向布置。 本公开还公开了一种具有检测器装置和使用该系统的CT检测方法的双能CT系统。

公开(公告)号：US20140093152A1

公开(公告)日：2014-04-03

申请号：US14037236

申请日：2013-09-25

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Liang LI ,  Li ZHANG ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yuxiang XING ,  Yongshun XIAO ,  Qingli WANG

IPC: G06T7/00

CPC classification number: G06T7/004 ,  A61B6/4085 ,  A61B6/466 ,  A61B6/469 ,  A61B6/5258 ,  G06T7/0012 ,  G06T7/55 ,  G06T7/70 ,  G06T11/006 ,  G06T2211/421 ,  G06T2211/436 ,  G16H40/63

Abstract: The present disclosure provides methods and devices for locating a plurality of interested objects in CT imaging. Location of the interested objects in the three-dimensional space can be determined by using three projection images that are substantially perpendicular to each other. The method can rapidly locate interested objects in a CT image without pre-reconstruction of the CT image even if there are a plurality of interested objects in the field of view. The algorithm does not involve interactive steps. The method is rapid and effective, and thus applicable to industrial applications.

Abstract translation: 本公开提供了用于在CT成像中定位多个感兴趣对象的方法和装置。 可以通过使用基本上彼此垂直的三个投影图像来确定兴趣对象在三维空间中的位置。 即使在视野中存在多个感兴趣的对象，该方法也可以快速定位CT图像中的感兴趣的对象，而无需对CT图像进行预重建。 该算法不涉及交互式步骤。 该方法快速有效，适用于工业应用。

公开(公告)号：US20240369499A1

公开(公告)日：2024-11-07

申请号：US18575789

申请日：2022-07-01

Applicant: Nuctech Company Limited ,  Tsinghua University

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

IPC: G01N23/04 ,  G01N23/06

Abstract: A ray scanning apparatus, including: a conveying device for conveying an object under inspection to pass through a scanning area; a ray source assembly including a plurality of ray source modules arranged around the scanning area on an upper side of the conveying device and fixed in a plane perpendicular to a conveying direction of the object under inspection; and a detector assembly including a plurality of detector sets fixed in a plane perpendicular to the conveying direction of the object under inspection; the detector assembly is located between the ray source assembly and the scanning area in a direction perpendicular to the conveying direction of the object under inspection, the ray source assembly and the detector assembly are arranged to overlap at least partially in the conveying direction of the object under inspection, and the plurality of ray source modules are mounted and detached independently of each other.

公开(公告)号：US20240310304A1

公开(公告)日：2024-09-19

申请号：US18574578

申请日：2022-07-06

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

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

IPC: G01N23/046

CPC classification number: G01N23/046 ,  G01N2223/1016 ,  G01N2223/419 ,  G01N2223/643

Abstract: An inspection system and method, the system includes: a ray source rotatable between at least two scanning positions around a rotation axis, a rotation angle of the ray source between two adjacent scanning positions being greater than an angle of adjacent target spots of the ray source relative to the rotation axis; a detector assembly; and a conveying device for carrying an object. The ray source and the detector assembly are movable in a traveling direction relative to the conveying device so that the object enters an inspection region. When the ray source is at one of the scanning positions, the ray source and the detector assembly move in the traveling direction and the ray source emits X-rays; and when the ray source and the detector assembly move a predetermined distance in the traveling direction, the ray source rotates around the rotation axis to another one of the scanning positions.

公开(公告)号：US20240142658A1

公开(公告)日：2024-05-02

申请号：US18574633

申请日：2022-07-06

Applicant: Nuctech Company Limited ,  Tsinghua University

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

IPC: G01V5/226 ,  G01N23/046

CPC classification number: G01V5/226 ,  G01N23/046

Abstract: An inspection system, including: at least one ray source rotatable between at least two scanning positions around a rotation axis, and a rotation angle of at least one ray source between two adjacent scanning positions is greater than an angle of adjacent target spots of each ray source relative to the rotation axis; a detector assembly, and a conveying device configured to carry an object to be inspected. At least one ray source and the detector assembly are movable in a traveling direction relative to the conveying device, so that the object to be inspected may enter an inspection region. When at least one ray source is located at one scanning positions, at least one ray source and the detector assembly move in the traveling direction relative to the conveying device and at least one ray source emits X-rays; after moving a predetermined distance, at least one ray source rotates around the rotation axis to another scanning position.

公开(公告)号：US20240103196A1

公开(公告)日：2024-03-28

申请号：US18284913

申请日：2022-01-18

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Yi CHENG ,  Qingping HUANG ,  Mingzhi HONG ,  Minghua QIU ,  Yao ZHANG ,  Jianxue YANG ,  Lei ZHENG

IPC: G01V5/226

CPC classification number: G01V5/226

Abstract: A radiographic inspection device and a method of inspecting an object are provided. The radiographic inspection device includes a support frame, where an inspection space applicable to inspect an object is formed within the support frame, and the inspection space has a first opening connecting to an outside; a transfer mechanism applicable to carry the object and move through the inspection space; a shielding curtain mounted at the first opening; and a driving mechanism. The driving mechanism includes: a driver mounted on the support frame; and a joint portion, where an upper end of the shielding curtain is connected to the joint portion. The driver is configured to synchronously drive two ends of the joint portion, so that the shielding curtain moves up and down with the joint portion to open or close the first opening.