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公开(公告)号：US20150185076A1
公开(公告)日：2015-07-02
申请号：US14577748
申请日：2014-12-19
Applicant: NUCTECH COMPANY LIMITED
Inventor： Ziran ZHAO , Jianhong ZHANG , Hongqiu WANG , Weiwei WANG , Zhiming WANG , Yumin YI
CPC classification number: G01J3/0297 , G01J3/28 , G01J3/44 , G01J2003/4424 , G01N21/65 , G01N2201/06113 , G01N2201/12
Abstract: Embodiments of the present invention provide a Raman spectroscopic inspection method, comprising the steps of: measuring a Raman spectrum of an object to be inspected successively to collect a plurality of Raman spectroscopic signals; superposing the plurality of Raman spectroscopic signals to form a superposition signal; filtering out a florescence interfering signal from the superposition signal; and identifying the object to be inspected on basis of the superposition signal from which the florescence interfering signal has been filtered out. By means of the above method, a desired Raman spectroscopic signal may be acquired by removing the interference caused by a florescence signal from a Raman spectroscopic inspection signal of the object. It may inspect correctly the characteristics of the Raman spectrum of the object so as to identify the object effectively.
Abstract translation: 本发明的实施例提供一种拉曼光谱检查方法，包括以下步骤：连续测量待检测物体的拉曼光谱，以收集多个拉曼光谱信号; 叠加多个拉曼光谱信号以形成叠加信号; 从叠加信号滤除荧光干扰信号; 并且根据已经滤除了荧光干扰信号的重叠信号来识别待检查的对象。 通过上述方法，可以通过从对象的拉曼光谱检查信号中去除由荧光信号引起的干扰来获得所需的拉曼光谱信号。 它可以正确地检查物体的拉曼光谱的特征，以有效地识别物体。
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公开(公告)号：US20150154809A1
公开(公告)日：2015-06-04
申请号：US14540440
申请日：2014-11-13
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang CHEN , Yuanjing LI , Ziran ZHAO , Shuo WANG , Jianping GU , Yunda SUN
CPC classification number: G06T19/20 , G06T7/0012 , G06T15/06 , G06T15/08 , G06T15/10 , G06T17/005 , G06T2207/10136 , G06T2210/12 , G06T2219/2021
Abstract: The present disclosure provides method and apparatus for marking a target in a 3D image. The method include steps of: acquiring Computed Tomography (CT) image data of a scene; rendering a 3D image of the scene using ray casting based on the CT image data; removing a transparent region from the 3D image based on a fixed 2D transfer function; and marking the target in the 3D image.
Abstract translation: 本公开提供了用于在3D图像中标记目标的方法和装置。 该方法包括以下步骤：获取场景的计算机断层扫描（CT）图像数据; 使用基于CT图像数据的射线投射来渲染场景的3D图像; 基于固定的2D传递函数从3D图像中去除透明区域; 并在3D图像中标记目标。
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73.发明公开公开(公告)号：US20230206463A1
公开(公告)日：2023-06-29
申请号：US18088433
申请日：2022-12-23
Inventor： Ziran ZHAO , Jianping GU , Yingxin WANG , Shaoming YUAN , Li GU , Yitao JIAO
CPC classification number: G06T7/20 , G06V10/44 , G06V10/761 , G01N23/04 , G06V2201/07 , G06T2207/30112 , G06T2207/30196
Abstract: Provided are a method and a device of binding security inspection information, an electronic apparatus and a storage medium, which may be applied to the field of security inspection technology. In the method of binding security inspection information of the present disclosure, the pedestrian detection frame is acquired by detecting the video stream, and each pedestrian detection frame has the coordinate information and the tracking information. According to the coordinate information and the tracking information of the pedestrian detection frame, the baggage security inspection information, the pedestrian security inspection information, and the identity information are bound to acquire all security inspection information of a detected person, so that a security inspection efficiency is improved.
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公开(公告)号：US20190204271A1
公开(公告)日：2019-07-04
申请号：US16235340
申请日：2018-12-28
Applicant: Nuctech Company Limited , TSINGHUA UNIVERSITY
Inventor： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Ge LI , Jingli XIE , Qiufeng MA , Biao CAO
CPC classification number: G01N27/622 , G01N1/2205 , G01N1/2211 , G01N1/24 , G01N2001/244
Abstract: The present disclosure provides a device for collecting semi-volatile or non-volatile substance, including an air nozzle, a front cavity and a collecting body. The air nozzle is configured to eject air to a sample attachment surface. The front cavity has an upper port. The collecting body is sealingly connected to a lower end of the front cavity, inside of which is provided with a cylindrical cavity and a conical cavity arranged vertically coaxially, and bottom of which is provided with a sample outlet. The collecting body is provided with an air intake passage which is non-coplanar with respect to an axis of the cylindrical cavity and is disposed obliquely downward and inward. The collecting body is further provided with an air exhaust passage one end of which is a discharge port connected to the interior of the cylindrical cavity, the other end is connected to an air pump.
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75.发明申请公开(公告)号：US20190204188A1
公开(公告)日：2019-07-04
申请号：US16232672
申请日：2018-12-26
Applicant: Tsinghua University , NUCTECH COMPANY LIMITED
Inventor： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Nan BAI , Ge LI , Qiufeng MA , Biao CAO , Weiping ZHU
CPC classification number: G01N1/2214 , B01D53/10 , B01D2259/40098 , G01N1/2205
Abstract: A sampling adsorber, a heat desorption chamber device, a sampling apparatus and an analyzer apparatus. The sampling adsorber includes an outer barrel, which includes an outer barrel first end and an outer barrel second end, and a core located in the outer barrel, the core having a core first end and a core second end, and the outer barrel first end and the core first end are located at a same side of the sampling adsorber. The core includes an adsorbent portion configured to adsorb a sample and a core body portion, the adsorbent portion connected to the core body portion. Sizes of the outer barrel and the core are formed such that a gap is provided between them to allow external gas to enter the gap through the adsorbent portion and to subsequently be discharged from a downstream portion of the gap.
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Patent Agency Ranking
公开(公告)号：US20190195751A1
公开(公告)日：2019-06-27
申请号：US16232062
申请日：2018-12-26
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Ge LI , Biao CAO , Jingli XIE , Xiaolin ZHAO , Qiufeng MA
CPC classification number: G01N1/24 , G01N1/2205 , G01N1/2211 , G01N1/405 , G01N30/30 , G01N2001/028 , G01N2001/2282 , G01N2001/2288 , G01N2030/146
Abstract: The present disclosure relates to the technical field of safety detection, and in particular to a sample collecting and introducing device and a detection system. The sample collecting and introducing device provided by the present disclosure includes a sampling device for collecting a sample, and a semipermeable membrane device for extracting the sample collected by the sampling device and conveying the extracted sample to detection equipment, wherein the sampling device is provided with an air guide cavity, the air guide cavity is configured to guide airflow carrying the sample to flow to the semipermeable membrane device, the semipermeable membrane device is provided with a semipermeable membrane which is arranged outside the sampling device. In the present disclosure, the size of the semipermeable membrane is no longer limited by the sampling device, and therefore the difficulty of increasing the area of the semipermeable membrane is reduced.
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公开(公告)号：US20190156139A1
公开(公告)日：2019-05-23
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 , G01N23/046 , G01V5/00
CPC classification number: G06K9/3241 , G01N23/046 , G01V5/0016 , G01V5/005
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：US20190056338A1
公开(公告)日：2019-02-21
申请号：US16045243
申请日：2018-07-25
Applicant: Tsinghua University , NUCTECH COMPANY LIMITED
Inventor： Liang LI , Zhiqiang CHEN , Li ZHANG , Ziran ZHAO , Yuxiang XING , Siyuan ZHANG
IPC: G01N23/2206 , G01N23/046 , G01N23/223 , A61B6/03 , A61B6/06 , A61B6/10 , A61B6/00
Abstract: The present disclosure discloses a ray transmission and fluorescence CT imaging system and method. The system comprises: a ray source configured to emit a beam of rays; a rotational scanning device configured to perform rotational CT scanning on an object to be inspected; a transmission CT detector configured to receive the beam of rays which has passed through the object; a fluorescence CT detector configured to receive fluorescent photons excited by irradiation of the beam of rays on the object; a data acquisition unit configured to acquire a transmission data signal and a fluorescence data signal respectively; and a control and data processing unit configured to control the ray source to emit the beam of rays, control the rotational scanning device to perform the rotational CT scanning, and obtain a transmission CT image and a fluorescence CT image simultaneously based on the transmission data signal and the fluorescence data signal.
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公开(公告)号：US20190004185A1
公开(公告)日：2019-01-03
申请号：US16026106
申请日：2018-07-03
Applicant: Nuctech Company Limited
Inventor： Yongqiang WANG , Qingjun ZHANG , Yuanjing LI , Ziran ZHAO , Lifeng SUN , Nan BAI , Xingliang ZHAI
CPC classification number: G01T1/185 , G01T3/008 , G01V5/0025
Abstract: A large-area X-ray gas detector includes a housing having an inner cavity and a ray entrance communicated with the inner cavity, a thin entrance window and a signal collection module. The inner cavity is filled with a working gas which is a non-electronegativity gas sensitive to the X-ray. The entrance window is hermetically connected to the ray entrance such that the X-ray enters into the inner cavity. The signal collection module comprises an anode wire electrode layer and a cathode electrode layer arranged parallel with each other in the inner cavity, in which the anode wire electrode layer has an anode wire for accessing to a high voltage, and the cathode electrode layer is grounded. The anode wire electrode layer collects electrons generated by the working gas under an action of the X-ray.
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80.发明申请公开(公告)号：US20180328866A1
公开(公告)日：2018-11-15
申请号：US16029896
申请日：2018-07-09
Applicant: Nuctech Company Limited
Inventor： Kejun KANG , Zhiqiang CHEN , Yuanjing LI , Li ZHANG , Ziran ZHAO , Yaohong LIU , Jianping GU , Liang LI , Yuxiang XING
IPC: G01N23/046 , G01V5/00
CPC classification number: G01N23/046 , G01V5/005
Abstract: The present disclosure provides a low-angle self-swinging type computed tomography (CT) apparatus, which is provided with an X-ray accelerator and a plurality of rows of detectors and is configured to include a slip ring, such that the slip ring with the accelerator and the detectors thereon is capable of performing a single-pendulum reciprocating movement while an objected to be inspected passes through the slip ring, a three dimension CT image of the object is displayed, thereby achieving accurate inspection for large-scale objects, such as van containers.
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