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公开(公告)号：US20180292333A1
公开(公告)日：2018-10-11
申请号：US15578131
申请日：2016-05-19
Applicant: Nuctech Company Limited , Nuctech Jiangsu Company Limited
Inventor： Zhiqiang Chen , Wanlong Wu , Ziran Zhao , Guangwei Ding , Ming Ruan , Xilei Luo
IPC: G01N23/083
CPC classification number: G01N23/083 , G01N23/02 , G01N2223/316 , G21K1/025
Abstract: Embodiments of the present disclosure provide a collimating device and a ray inspection device. The collimating device comprises: a beam guiding cylinder, a first collimator mounted at an inlet end of the beam guiding cylinder; a second collimator mounted an outlet end of the beam guiding cylinder; a beam guiding cylinder adjusting device disposed adjacent to the inlet of the beam guiding cylinder to adjust a direction of the beam guiding cylinder such that the first collimator is aligned with the first direction. The outlet end of the beam guiding cylinder is fixed to the frame and the second collimator is aligned with an object to be irradiated by a radiation beam, and the beam guiding cylinder is configured to have flexibility to allow the adjusting device to adjust a direction towards which the inlet end of the beam guiding cylinder is directed, in a direction transverse to the first direction.
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公开(公告)号：US10036707B2
公开(公告)日：2018-07-31
申请号：US14576752
申请日：2014-12-19
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Ziran Zhao , Li Zhang , Yingying Geng , Hongqiu Wang , Yumin Yi
CPC classification number: G01N21/65 , G01J3/28 , G01J3/44 , G01J3/4412 , G01N21/87 , G01N2201/06113 , G01N2201/12
Abstract: Embodiments of the present invention provide jewel and jade identification method and apparatus. The method comprises the steps: (a) placing a sample to be detected over a light transmission hole formed on a carrying surface of an object table and emitting, by an optical probe disposed below the carrying surface, an exciting light onto the sample through the light transmission hole and then collecting a Raman scattered light from the sample by the optical probe. (b) acquiring a Raman spectrum curve of the sample from the collected Raman scattered light from the sample; and (c) comparing the Raman spectrum curve with a reference Raman spectrum library for jewels and jades to identify the sample. The method and apparatus may achieve effective, convenient and accurate inspections of the jewels and jades.
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公开(公告)号：US20180196158A1
公开(公告)日：2018-07-12
申请号：US15868378
申请日：2018-01-11
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Gang Fu , Jun Zhang , Jianping Gu , Yaohong Liu , Ziran Zhao
CPC classification number: G01V5/0016 , G06T7/001 , G06T2207/10116
Abstract: An inspection device and a method for detecting a firearm are disclosed. X-ray inspection is performed on an inspected object to obtain a transmission image. A plurality of candidate regions in the transmission image are determined using a trained firearm detection neural network. The plurality of candidate regions are classified using the firearm detection neural network to determine whether there is a firearm included in the transmission image. With the above solution, it is possible to determine more accurately whether there is a firearm included in a container/vehicle.
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公开(公告)号：US20180195977A1
公开(公告)日：2018-07-12
申请号：US15868359
申请日：2018-01-11
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Qili Wang , Shiyu Dai , Jianping Gu , Yaohong Liu , Ziran Zhao
CPC classification number: G01N23/04 , G01V5/0016 , G06K9/2054 , G06K9/6256 , G06K9/6267 , G06N3/04 , G06N3/0454 , G06N3/08 , G06T5/50 , G06T7/001 , G06T7/74 , G06T2207/10116 , G06T2207/20221 , G06T2207/30112 , G06T2207/30232
Abstract: An inspection device and a method for detecting a firearm in a luggage are disclosed. The method comprises: performing X-ray inspection on the luggage to obtain a transmission image; determining a plurality of candidate regions in the transmission image using a trained firearm detection neural network; and classifying the plurality of candidate regions using the detection neural network to determine whether there is a firearm included in the transmission image. With the above solutions, it is possible to determine more accurately whether there is a firearm included in a luggage. In other embodiments, after a firearm is detected using the above method, a label is marked in the image to prompt an image judger.
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公开(公告)号：US10013750B2
公开(公告)日：2018-07-03
申请号：US14138399
申请日：2013-12-23
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Li Zhang , Zhiqiang Chen , Ziran Zhao , Qiang Li , Jianping Gu , Yunda Sun
CPC classification number: G06T7/0004 , G01V5/005 , G06K9/00201 , G06T7/0002 , G06T15/08 , G06T2200/04 , G06T2207/10116 , G06T2207/30112
Abstract: Disclosed are object detection method, display methods and apparatuses. The method includes obtaining slice data of inspected luggage in the CT system; generating 3D volume data of objects in the luggage from the slice data; for each object, determining a semantic description including at least a quantifier description of the object based on the 3D volume data; and upon reception of a user selection of an object, presenting the semantic description of the selected object while displaying a 3D image of the object. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.
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Patent Agency Ranking
公开(公告)号：US20180183904A1
公开(公告)日：2018-06-28
申请号：US15835204
申请日：2017-12-07
Applicant: Nuctech Company Limited
Inventor： Ziran Zhao , Hongqiu Wang , Nei Yang , Xiaodong Qin
CPC classification number: H04L69/164 , G01J3/44 , G01N21/65 , H04L65/1069 , H04L65/60 , H04L67/125 , H04L69/10
Abstract: A Raman spectroscopic device and a communication method thereof are disclosed. In one aspect, an example Raman spectroscopic device comprises a communication unit configured to communicate with at least one of a server and a management terminal through one or more types of communication interfaces for one or more respective purposes. One or more communication interfaces are established based on a User Datagram Protocol (UDP).
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公开(公告)号：US20180173161A1
公开(公告)日：2018-06-21
申请号：US15562627
申请日：2016-08-19
Applicant: Nuctech Company Limited
Inventor： Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Wanlong Wu , Zongjun Shen , Li Zhang , Yinong Liu , Yingkang Jin , Wentao Yu
CPC classification number: G03H1/268 , G01N22/00 , G01S13/89 , G01S17/89 , G01V8/005 , G03H2001/0428
Abstract: An imaging device and an imaging method by millimeter wave 3D holographic scanning are disclosed. In an embodiment, the millimeter wave 3D holographic scanning imaging device may include: a conveying apparatus configured to convey an object located thereon in a first direction; and at least one millimeter wave transceiving module arranged beside the conveying apparatus, each configured to be enabled to scan the object when the conveying apparatus conveys the object through the respective millimeter wave transceiving module, wherein each millimeter wave transceiving module is arranged to have its longitudinal direction extend in a direction intersecting the first direction, and includes a millimeter wave transceiving antenna array for transceiving millimeter wave signals.
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公开(公告)号：US09983321B2
公开(公告)日：2018-05-29
申请号：US15258209
申请日：2016-09-07
Applicant: Nuctech Company Limited , TSINGHUA UNIVERSITY
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Xiang Zou , Huishao He , Shuwei Li , Jianping Chang , Wenjian Zhang
CPC classification number: G01T7/00 , G01J1/0271 , G01J2001/0276
Abstract: The invention discloses a safety inspection detector and a goods safety inspection system. The safety inspection detector at least comprises a circuit board, a first housing, a second housing, a detection module and a connecting interface. The detection module and the connecting interface are mounted on the circuit board. The first housing is pressed and connected to a first surface of the circuit board, and the second housing is pressed and connected to a second surface of the circuit board. The first housing and the second housing can hermetically wrap the detection module and electronic devices on the circuit board, but bypass the connecting interface to realize leading-out and connection with related interconnected cables by utilizing the connecting interface. The housings can be used for sealing and protecting sensitive electronic devices in the detector, thus being moisture proof and preventing interference.
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公开(公告)号：US20170184727A1
公开(公告)日：2017-06-29
申请号：US15282485
申请日：2016-09-30
Applicant: Nuctech Company Limited
Inventor： Ziran Zhao , Zhiqiang Chen , Yuanjing Li , Wanlong Wu , Yingkang Jin , Chenguang Zhu
CPC classification number: G01T1/02 , A61N5/10 , A61N2005/1074 , G01V5/0016
Abstract: A human body radiation examining method and system are disclosed. In one aspect, the human body radiation examining method comprises: identifying a person to be examined. The method further comprises retrieving an accumulative radiation dose of the person according to identification result. The method further comprises obtaining a predicted single radiation scanning dose of a human body radiation examining device intended to perform a current radiation examination. The method further comprises calculating a sum value of the accumulative radiation dose of the person and the predicted single radiation scanning dose of the human body radiation examining device. The method further comprises determining whether to perform the current radiation examination on the person according to whether the sum value exceeds a dose limit. In some embodiments, the human body radiation examining system and method can improve the security of the human body radiation examination.
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公开(公告)号：US20170184516A1
公开(公告)日：2017-06-29
申请号：US15285850
申请日：2016-10-05
Applicant: Nuctech Company Limited
Inventor： Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Wanlong Wu , Yingkang Jin , Le Tang , Xiao Tang , Guangwei Ding
IPC: G01N23/203
CPC classification number: G01N23/203 , G01N2223/053 , G01N2223/408 , G01T7/00 , G01V5/0025
Abstract: The present disclosure relates to a portable backscatter imaging inspection apparatus and an imaging method thereof, the apparatus comprising: an apparatus housing, an X-ray source, a rotating modulation mechanism, a radiation detector, a motion sensor and a controller; the X-ray source, the rotating modulation mechanism, the radiation detector and the motion sensor are disposed within the apparatus housing, wherein the radiation detector is used to receive scatter signal data from a surface of an object under inspection to form a two dimensional (2D) image, the motion sensor is used to collect a three dimensional (3D) motion track and scanning angles of the apparatus during a scanning process, the controller is used to splice and fuse a plurality of 2D images received by the radiation detector based on the 3D motion track and the scanning angles to obtain a stereo image of the surface of the object under inspection. This disclosure may achieve a better scan imaging effect on an object having a curved surface or multiple irregular surfaces.
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