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1. 发明申请

US20220099601A1 RADIATION INSPECTION APPARATUS AND RADIATION INSPECTION METHOD 有权
公开(公告)号：US20220099601A1
公开(公告)日：2022-03-31
申请号：US17420681
申请日：2020-01-03
申请人： NUCTECH (BEIJING) COMPANY LIMITED , NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Zhiqiang CHEN , Yuanjing LI , Li ZHANG , Jianmin LI , Shangmin SUN , Chunguang ZONG , Yu HU , Quanwei SONG , Hejun ZHOU , Weifeng YU , Jinguo CAO , Bing FU
IPC分类号： G01N23/10 , G01N23/04 , G01N23/083
摘要： The present disclosure provides a radiation inspection apparatus and a radiation inspection method. The radiation inspection apparatus includes: a radiation inspection device comprising a ray source and a detector that cooperates with the ray source to perform scanning inspection on an object to be inspected, the radiation inspection device having an inspection channel for the object to be inspected to pass through when scanning inspection is performed thereon; and traveling wheels provided at the bottom of the radiation inspection device to enable the radiation inspection apparatus to travel in an extension direction of the inspection channel, and the traveling wheels are configured to rotate 90° to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.

2. 发明申请

US20210082221A1 SMART LOCK, SMART MONITORING SYSTEM AND SMART MONITORING METHOD 有权
公开(公告)号：US20210082221A1
公开(公告)日：2021-03-18
申请号：US17017967
申请日：2020-09-11
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Li ZHANG , Gang PENG , Qingping HUANG , Liang LI , Fan YANG , Jiabao CHEN , Kun CHENG , Zhifeng HE
IPC分类号： G07C9/29 , G07C9/00 , G07C9/20
摘要： The present disclosure provides a smart lock, including: a lock body and an unlocking structure; a Bluetooth communication module configured to receive a lock instruction or an unlock instruction based on Bluetooth communication; and one or more binding tags, each binding tag being associated with a Bluetooth address of the smart lock, wherein the unlocking structure is configured to lock or unlock the smart lock based on the lock instruction or the unlock instruction, or lock or unlock the smart lock based on an operation performed for the one or more binding tags. The present disclosure further provides a system and method for monitoring an object equipped with the smart lock.

3. 发明申请

US20190204244A1 VEHICLE-MOUNTED TYPE BACK SCATTERING INSPECTION SYSTEM 审中-公开
公开(公告)号：US20190204244A1
公开(公告)日：2019-07-04
申请号：US16234630
申请日：2018-12-28
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Hao YU , Ying LI , Weizhen WANG , Quanwei SONG , Dongyu WANG , Haojie CHI , Jianmin LI , Yulan LI , Chunguang ZONG , Zhiqiang CHEN , Yuanjing LI , Li ZHANG
IPC分类号： G01N23/203 , G01V5/00
CPC分类号： G01N23/203 , G01V5/0025
摘要： The present disclosure discloses a vehicle-mounted type back scattering inspection system. The back scattering imaging device has a vehicle-mounted working state and a ground working state, and in the vehicle-mounted working state, the back scattering imaging device performs inspection work in the carriage; in the ground working state, the back scattering imaging device performs the inspection work on the ground at the outside of the carriage; and the back scattering imaging device is separately arranged relative to the carriage and is movable between the carriage and the ground to switch between the vehicle-mounted working state and the ground working state.

4. 发明申请

US20190204240A1 SCANNED IMAGE CORRECTION APPARATUS, METHOD AND MOBILE SCANNING DEVICE 审中-公开
公开(公告)号：US20190204240A1
公开(公告)日：2019-07-04
申请号：US16231373
申请日：2018-12-21
申请人： Tsinghua University , Nuctech Company Limited
发明人： Ke LI , Jianmin LI , Weifeng YU , Yulan LI , Xuejing YANG , Yuanjing LI , Chunguang ZONG , Zhiqiang CHEN , Li ZHANG
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , G01N2223/04 , G01N2223/303 , G01N2223/33 , G01N2223/401
摘要： The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.

5. 发明申请

US20190094407A1 SCANNING IMAGING SYSTEM FOR SECURITY INSPECTION OF AN OBJECT AND IMAGING METHOD THEREOF 审中-公开
公开(公告)号：US20190094407A1
公开(公告)日：2019-03-28
申请号：US16037810
申请日：2018-07-17
申请人： Nuctech Company Limited , Tsinghua University
发明人： Li ZHANG , Zhiqiang CHEN , Le SHEN , Qingping HUANG , Yunda SUN , Xin JIN , Hui DING , Yuxiang XING
IPC分类号： G01V5/00 , G01N23/046
摘要： The disclosure provides a scanning imaging system for security inspection of an object and an imaging method thereof, the system comprising: a conveying unit configured for bringing the object to move along a conveying direction; a plurality of radiographic sources at one side of the conveying unit, being arranged successively in a direction vertical to a plane, in which the conveying unit is located, and configured for alternately emitting ray beams to form a scanning area; a linear detector array 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.

6. 发明申请

US20180182129A1 SPECTRAL CT IMAGE RECONSTRUCTING METHOD AND SPECTRAL CT IMAGING SYSTEM 审中-公开
公开(公告)号：US20180182129A1
公开(公告)日：2018-06-28
申请号：US15580005
申请日：2016-08-22
申请人： TSINGHUA UNIVERSITY , Nuctech Company Limited
发明人： Yuxiang XING , Li ZHANG , Huayu ZHANG , Le SHEN
IPC分类号： G06T11/00 , G06T7/00
CPC分类号： G06T11/005 , G06T7/0012 , G06T2207/10081 , G06T2207/20081 , G06T2211/408
摘要： A spectral CT image reconstructing method includes: collecting incomplete original projection data in each of a plurality of energy windows; performing a projection data cross estimation using corresponding original projection data in at least one pair of energy windows constituted by different energy windows of the plurality of energy windows to obtain estimated projection data, wherein each pair of energy windows comprises a first energy window and a second energy window; combining the original projection data and the corresponding estimated projection data to obtain complete projection data; and reconstructing a spectral CT image using the complete projection data.

7. 发明申请

US20150339521A1 PRIVACY PROTECTION METHOD OF HUMAN BODY SECURITY INSPECTION AND HUMAN BODY SECURITY INSPECTION SYSTEM 审中-公开
标题翻译：人体身体检查和人体身体安全检查系统隐私保护方法
公开(公告)号：US20150339521A1
公开(公告)日：2015-11-26
申请号：US14414515
申请日：2014-07-23
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang CHEN , Ziran ZHAO , Yuanjing LI , Wanlong WU , Xianli DING , Li ZHANG , Yingkang JIN , Zongjun SHEN , Le TANG
IPC分类号： G06K9/00 , G07C9/00 , G06T7/00
CPC分类号： G06K9/00362 , A61B5/0064 , A61B5/1077 , A61B6/12 , A61B6/463 , A61B6/563 , G01V5/0008 , G06K9/00771 , G06K2209/09 , G06T7/0002 , G06T2207/30196 , G06T2207/30232 , G07C9/00158
摘要： The present invention provides a privacy protection method and a human body security inspection system having the same function. The privacy protection method comprises the steps of: acquiring in real-time scanning row or column image data of a personal to be inspected; displaying a physical profile image and an outline image of the personal to be inspected, on basis of the processed image of the scanning row or column image data; transmitting the physical profile image to an equipment end display in a human body security inspection system and displaying it thereon, and displaying the outline image of the personal to be inspected on a remote operation end display of the human body security inspection system; performing the suspicious matter recognition based on the outline image; and correspondingly displaying a suspected frame on the physical profile image, based on the suspicious matter recognized in the outline image.
摘要翻译：本发明提供了具有相同功能的隐私保护方法和人体安全检查系统。隐私保护方法包括以下步骤：实时扫描待检查的个人的行或列图像数据; 基于扫描行或列图像数据的处理图像，显示待检查的个人的物理轮廓图像和轮廓图像; 将物理轮廓图像发送到人体安全检查系统中的设备端显示器并在其上显示，并且在人体安全检查系统的远程操作终端显示器上显示被检查人员的轮廓图像; 基于轮廓图像执行可疑物识别; 并且基于在轮廓图像中识别的可疑物，相应地在物理轮廓图像上显示可疑帧。

8. 发明申请

US20150241368A1 HUMAN BODY BACK SCATTERING INSPECTION METHOD AND SYSTEM 有权
标题翻译：人体背部散射检查方法和系统
公开(公告)号：US20150241368A1
公开(公告)日：2015-08-27
申请号：US14572528
申请日：2014-12-16
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang CHEN , Ziran ZHAO , Yuanjing LI , Wanlong WU , Ming RUAN , Li ZHANG , Yingkang JIN , Le TANG , Xianli DING , Chenguang ZHU
IPC分类号： G01N23/203
CPC分类号： G01N23/203 , G01T1/167 , G01V5/0025 , G01V5/0091
摘要： A human body back-scattering inspection method and system are discloses. The method includes: obtaining a back-scattering scan image of a human body under inspection; distinguishing a body image from a background image in the back-scattering scan image; and calculating a feature parameter of the background image to determine whether radioactive substance is carried with the human body. With some embodiments of the present disclosure, it is possible to determine whether any radioactive substance is carried with a human body during back-scattering inspection of the human body. In further embodiments of the present disclosure, it is possible to approximately determine which part(s) of the human body carries the radioactive substance. This improves efficiency of inspection.
摘要翻译：公开了人体背散射检查方法和系统。该方法包括：获得检查中的人体的背散射扫描图像; 在背散射扫描图像中区分身体图像与背景图像; 并计算背景图像的特征参数，以确定放射性物质是否与人体携带。利用本公开的一些实施例，可以在人体的后散射检查期间确定任何放射性物质是否携带人体。在本公开的另外的实施例中，可以大致确定人体的哪一部分携带放射性物质。这提高了检查的效率。

9. 发明申请

US20150199804A1 CT SYSTEMS AND METHODS THEREOF 有权
标题翻译： CT系统及其方法
公开(公告)号：US20150199804A1
公开(公告)日：2015-07-16
申请号：US14576705
申请日：2014-12-19
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang CHEN , Li ZHANG , Ji ZHAO , Qingping HUANG , Xin JIN
IPC分类号： G06T7/00
CPC分类号： G06T7/0002 , G01V5/005 , G06T2207/30112
摘要： A CT system and method thereof are discloses. The system includes: a fixed multi-plane multi-source X-ray generation device and a control system thereof that provide X-ray source used in luggage inspection; a single-energy, pseudo-dual-energy or spectral detector system and data transfer system that receive perspective data of X ray penetrating the luggage, and transfer the data to a computer for processing; a conveyor and a control system thereof that control a speed for moving the luggage forth and back, and perform tomogram scanning; and a host computer system that performs tomogram reconstruction and provides man-machine interaction. The system takes full advantage of characteristics, such as high speed and stability, brought by the distributed ray sources which replace the normal slip ring technology. The system also adopts the idea of inverse-geometry CT, and reduces detector area and cost by increasing the number of ray sources. With the reduction of detector area, cone-beam artifacts and cup-shape artifacts caused by scattering are also reduced, and influence of the oblique effect on registration of dual-energy data is suppressed.
摘要翻译：公开了一种CT系统及其方法。该系统包括：提供行李检查中使用的X射线源的固定多平面多源X射线产生装置及其控制系统; 单能量，伪双能量或光谱检测器系统和数据传输系统，其接收穿透行李的X射线的透视数据，并将数据传送到计算机进行处理; 输送机及其控制系统，其控制行李前后移动的速度，并执行断层图像扫描; 以及执行断层图像重建并提供人机交互的主计算机系统。系统充分利用了代替普通滑环技术的分布式射线源带来的高速度，稳定性等特点。该系统还采用反几何CT的思想，通过增加射线源数量，减少探测器面积和成本。随着检测器面积的减小，散射引起的锥束伪影和杯形伪影也减少，并且斜率对双能数据配准的影响受到抑制。

10. 发明公开

US20230251399A1 CHECKING METHOD AND CHECKING SYSTEM BASED ON MILLIMETER WAVE SECURITY INSPECTION DEVICE AND SERVER 审中-公开
公开(公告)号：US20230251399A1
公开(公告)日：2023-08-10
申请号：US18013094
申请日：2021-06-24
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Zhiqiang CHEN , Ziran ZHAO , Yingkang JIN , Xiaoyi HE , Li ZHANG , Mengjiao ZHAO , Zhimin ZHENG , Yihai ZHANG , Yaning LI , Xiaoxiao FENG
IPC分类号： G01V8/00
CPC分类号： G01V8/005
摘要： Provided is a server of a checking system based on a millimeter wave security inspection device, connected to a security inspection instrument through a switching system, the server includes a memory and a processor, the memory stores instructions, and the instructions, when executed by the processor, cause the processor to: receive a scanned image of an object and an ATR image interpretation result of the object from the security inspection instrument, wherein the ATR image interpretation result is obtained by the security inspection instrument performing an automatic threat recognition (ATR) image interpretation on the scanned image, and perform a manual inspection task on the object and perform an image interpretation task on the scanned image according to a working mode, wherein the working mode indicates whether the checking system is provided with a manual inspection station and an image interpretation station.

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