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公开(公告)号：US10895660B2
公开(公告)日：2021-01-19
申请号：US16234630
申请日：2018-12-28
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： 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: G01N23/203 , G01V5/00
Abstract: 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 a 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.
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公开(公告)号：US10784008B2
公开(公告)日：2020-09-22
申请号：US16166136
申请日：2018-10-21
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Long Zhang , Li Zhang , Mingzhi Hong , Jinning Liang
Abstract: The present disclosure relates to a shield cover for a radiation source machine and a security inspection apparatus. The shield cover for a radiation source machine comprises: a frame body provided with a receiving chamber for receiving the radiation source machine, an end opening and an ray exit through which rays are emitted out from the radiation source machine; an end cover disposed at the end opening of the frame body and provided with a sealed chamber communicating with the receiving chamber; and a connecting member disposed between the end cover and the frame body and provided with an opening for communicating the sealed chamber of the end cover with the receiving chamber of the frame body, and the end cover being movably connected to the frame body by the connecting member such that a distance of the end cover from the end opening of the frame body is adjustable.
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公开(公告)号：US10509979B2
公开(公告)日：2019-12-17
申请号：US16255738
申请日：2019-01-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang Chen , Li Zhang , Ziran Zhao , Yaohong Liu , Duokun Zhang , Jianping Gu , Qiang Li , Jian Zhang
IPC: G06K9/32 , G01V5/00 , G01N23/046
Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.
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公开(公告)号：US10229336B2
公开(公告)日：2019-03-12
申请号：US15129389
申请日：2015-12-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang Chen , Li Zhang , Ziran Zhao , Yaohong Liu , Duokun Zhang , Jianping Gu , Qiang Li , Jian Zhang
IPC: G01V5/00 , G06K9/32 , G01N23/046
Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.
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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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Patent Agency Ranking
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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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：US09997266B2
公开(公告)日：2018-06-12
申请号：US15273881
申请日：2016-09-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Li Zhang , Shixin Zhang , Lin Yang , Hongqiu Wang , Yumin Yi , Huacheng Feng , Jianhong Zhang
CPC classification number: G21F5/12 , F16P3/08 , G01J3/0291 , G01J3/44 , G01N21/35 , G01N21/65 , G01N2201/0225
Abstract: Embodiments of the present invention provide a protective device including a sliding door and a housing, together forming a closed space, wherein, a guide rail is provided on the housing, and the sliding door is slidable along the guide rail to open or close the closed space. In addition, embodiments of the present invention also provide a laser Raman safety inspection apparatus including the abovementioned protective device.
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99.发明授权公开(公告)号：US09983137B2
公开(公告)日：2018-05-29
申请号：US15271297
申请日：2016-09-21
Applicant: NUCTECH COMPANY LIMITED
Inventor： Yanshi Ning , Li Zhang , Hongqiu Wang , Yumin Yi , Shixin Zhang
CPC classification number: G01N21/65 , G01N33/0057 , G01N2021/651 , G01N2201/022 , G01N2201/0236
Abstract: Embodiments of the present disclosure provide a safety protection device for Raman spectroscopy detection and a Raman spectroscopy detection system including the safety protection device. The safety protection device includes: a detection cavity including a cavity body, the cavity body having an opening end through which a sample to be detected is allowed to be placed into the detection cavity; and a cover configured to cover and engage the opening end so as to form, together with the detection cavity, an explosion proof container defining a space for receiving the sample to be detected, the detection cavity further includes a detection opening formed in the cavity body such that a Raman detection probe is allowed to be inserted into the space through the detection opening so as to detect the sample.
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公开(公告)号：US09864091B2
公开(公告)日：2018-01-09
申请号：US14355240
申请日：2013-07-15
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang Chen , Yuanjing Li , Li Zhang , Jinyu Zhang , Zhanjun Duan , Longsong Ran , Qingping Huang
IPC: G01V5/00 , G01N23/04 , G01N23/08 , G01N23/083 , G01N23/087 , A61B6/03
CPC classification number: G01V5/005 , A61B6/032 , A61B6/035 , G01N23/046 , G01V5/0016 , G01V5/0041
Abstract: The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, an X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a detector unit distribution circle with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with their center at the target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.
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