公开(公告)号：US20170138902A1

公开(公告)日：2017-05-18

申请号：US15271713

申请日：2016-09-21

Applicant: Nuctech Company Limited

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Weiping ZHU ,  Ziran ZHAO ,  Qiufeng MA ,  Huishao HE ,  Jianping CHANG ,  Xiang ZOU ,  Linxia TAN

IPC: G01N27/62 ,  G01N1/22 ,  G01N30/72

CPC classification number: G01N27/622 ,  G01N1/02 ,  G01N1/22 ,  G01N30/72 ,  G01N30/7206 ,  G01N2001/022 ,  G01N2001/024

Abstract: The present invention discloses darkroom type security inspection apparatus and method. An apparatus comprises a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing are communicated by fittings or connectors and comprises: a sampling assembly comprising a sample collecting unit and a conveyer unit configured to convey an object to be inspected into the sample collecting unit; a sample processing assembly configured to concentrate and analyze the sample; and, an inspecting assembly configured to inspect composition of the sample by means of a gas chromatographic-ion mobility spectrometer (GC-IMS) or a separated ion mobility spectrometer (IMS). The security inspection apparatus of the present invention can perform the sampling easy, rapidly and effectively and perform the inspection accurately and rapidly without destroying and unpacking an object to be inspected, and thus is suitable for requirements of on-site rapid inspection of forbidden items in the airport, customs and the likes.

公开(公告)号：US20170122884A1

公开(公告)日：2017-05-04

申请号：US15301345

申请日：2015-12-14

Applicant: NUCTECH COMPANY LIMITED

Inventor： Li ZHANG ,  Xin JIN ,  Huaping TANG ,  Qingping HUANG ,  Yunda SUN ,  Zhiqiang CHEN

IPC: G01N23/04

CPC classification number: G01N23/04 ,  G01N23/046 ,  G01N2223/3307 ,  G01N2223/423 ,  G01N2223/643 ,  G01V5/0041

Abstract: The present disclosure discloses a radiography system including: a ray source, comprising a plurality of X-ray generators which are distributed on one or more planes intersected with a moving direction of an object being inspected; a detector module comprising a plurality of detection units; a data collection circuit; a controller, configured to control at least two X-ray generators of the plurality of X-ray generators in the ray source to generate X-rays alternately such that the object is scanned by the generated X-rays; and control the detector module and the data collection circuit to respectively obtain detection data corresponding to the at least two X-ray generators; and a data processing computer, configured to create images of the object being inspected in view angles of the at least two X-ray generators based on the detection data. The above embodiments may implement a multi-view-angle perspective imaging system within a single scan plane by utilizing a distributed X-ray source and reuse of the detectors.

公开(公告)号：US20160335503A1

公开(公告)日：2016-11-17

申请号：US15034021

申请日：2014-11-11

Applicant: NUCTECH COMPANY LIMITED

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Qiang LI ,  Jian ZHANG ,  Jianping GU ,  Jin CUI

IPC: G06K9/00 ,  G06K9/46 ,  G06K9/40 ,  G06K9/32 ,  G06K9/42 ,  G06K9/62 ,  G06K9/38

CPC classification number: G06K9/00771 ,  G06K9/00 ,  G06K9/3241 ,  G06K9/38 ,  G06K9/40 ,  G06K9/42 ,  G06K9/4642 ,  G06K9/627 ,  G06K2209/09

Abstract: The present disclosure discloses an inspection method and device. The method comprises steps of acquiring a perspective image of an inspected object; processing the perspective image to obtain a region of interest; and automatically detecting the region of interest using a cigarette model, to determine whether the region of interest of the perspective image belongs to a cigarette. In the present disclosure, cigarette detection is implemented on a scanned image of goods, particularly a container, which can avoid the problem of detection vulnerability and poor effect of manual image judgment for the conventional manner, and is of significance in fighting against cigarette smuggling.

Abstract translation: 本公开公开了一种检查方法和装置。 该方法包括获取被检查对象的透视图像的步骤; 处理透视图以获得感兴趣的区域; 并使用香烟模型自动检测感兴趣区域，以确定透视图像的感兴趣区域是否属于香烟。 在本公开中，香烟检测在商品的扫描图像，特别是容器上实现，其可以避免检测脆弱性的问题以及常规方式的手动图像判断的差的影响，并且对于打击卷烟走私具有重要意义。

公开(公告)号：US20160321816A1

公开(公告)日：2016-11-03

申请号：US15204564

申请日：2016-07-07

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Ziran ZHAO ,  Qingping HUANG ,  Qiang LI ,  Jianping GU ,  Yunda SUN

IPC: G06T7/00 ,  G06T7/60 ,  G06K9/62 ,  G06T11/00

CPC classification number: G06T7/596 ,  G06K9/00201 ,  G06K9/00523 ,  G06K9/00536 ,  G06K9/6215 ,  G06K9/627 ,  G06K2209/09 ,  G06T7/0004 ,  G06T7/68 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2207/30112 ,  G06T2211/408

Abstract: Methods for extracting a shape feature of an object and security inspection methods and apparatuses. Use is made of CT's capability of obtaining a 3D structure. The shape of an object in an inspected luggage is used as a feature of a suspicious object in combination with a material property of the object. For example, a false alarm rate in detection of suspicious explosives may be reduced.

Abstract translation: 用于提取对象的形状特征的方法和安全检查方法和装置。 使用CT可以获得3D结构。 检查行李中的物体的形状被用作可疑物体的特征，与物体的材料属性相结合。 例如，可能会减少检测可疑炸药的误报率。

公开(公告)号：US20160223474A1

公开(公告)日：2016-08-04

申请号：US14901989

申请日：2015-08-27

Applicant: NUCTECH COMPANY LIMITED

Inventor： Huaping TANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Zhuoyan LIU ,  Yonggang WANG ,  Zhanfeng QIN

IPC: G01N23/04 ,  B07C5/34

CPC classification number: G01N23/04 ,  B07C5/3416 ,  G01N23/046 ,  G01N2223/643 ,  G01N2223/645

Abstract: An X-ray product quality automatic inspection device of the present invention comprises: a distributed X-ray source having a plurality of targets and being able to generate X-rays for irradiating an inspected product from the plurality of targets in a predetermined sequence; a detector for receiving the X-rays generated by the distributed X-ray source and outputting a signal representing characteristics of the received X-rays; a transport device for carrying the inspected product to pass through an X-ray radiation region; and a power supply and control device, which is used to supply power to and control the X-ray product quality automatic inspection device, to form characteristic information of the inspected product according to the signal from the detector and to provides an inspection and analysis result of the inspected product according to the characteristic information.

Abstract translation: 本发明的X射线产品质量自动检查装置包括：具有多个靶的分布式X射线源，能够产生用于以预定顺序从多个靶照射被检查物品的X射线; 检测器，用于接收由分布式X射线源产生的X射线，并输出表示所接收的X射线特性的信号; 用于携带被检查产品通过X射线辐射区域的传送装置; 以及用于向X射线产品质量自动检查装置供电和控制的电源和控制装置，根据来自检测器的信号形成被检查产品的特征信息，并提供检查和分析结果 根据特征信息检查产品。

公开(公告)号：US20160170073A1

公开(公告)日：2016-06-16

申请号：US14965122

申请日：2015-12-10

Applicant: Nuctech Company Limited

Inventor： Jianmin LI ,  Yulan LI ,  Jingyu GU ,  Yuanjing LI ,  Quanwei SONG ,  Weizhen WANG ,  Dongyu WANG ,  Zhiqiang CHEN ,  Chaunxiang TANG ,  Yinong LIU ,  Junli LI ,  Tao XUE ,  Hui Gong ,  Xuewu WANG

IPC: G01V5/00 ,  B60R11/00

CPC classification number: G01V5/0016 ,  B60R11/00 ,  B60R2011/004

Abstract: A vehicle mounted mobile container or vehicle inspection system, including: a radiation source, a movable vehicle for carrying the inspection system, and a detector arm rack which has a horizontal arm and a vertical arm, a first end of the horizontal arm is connected to the vehicle and a second end thereof is connected to an end of the vertical arm. The horizontal arm and the vertical arm are connected by a pivotal connecting device such that the vertical arm may pivot in a vertical plane, and the horizontal arm and the vertical arm may be retracted in a same horizontal plane. The novel arm rack construction may reduce the space occupied by it on top of the scanning vehicle after the arm rack is stowed so as to reduce the eight of the scanning vehicle under running condition.

Abstract translation: 一种车载移动容器或车辆检查系统，包括：辐射源，用于携带检查系统的移动车辆和具有水平臂和垂直臂的检测器臂架，水平臂的第一端连接到 车辆及其第二端连接到垂直臂的一端。 水平臂和垂直臂通过枢转连接装置连接，使得垂直臂可以在垂直平面中枢转，并且水平臂和垂直臂可以在相同的水平面中缩回。 新型臂架结构可以在搁架臂架之后减小扫描车辆顶部占据的空间，以便在运行状态下减少扫描车辆的八个。

公开(公告)号：US20150332448A1

公开(公告)日：2015-11-19

申请号：US14138399

申请日：2013-12-23

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Li ZHANG ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Qiang LI ,  Jianping GU ,  Yunda SUN

IPC: G06T7/00 ,  G06T15/08 ,  G06T7/60 ,  G01V5/00

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.

Abstract translation: 本发明涉及物体检测方法，显示方法和装置。 该方法包括在CT系统中获取检验行李的切片数据; 从切片数据生成行李中物体的3D体积数据; 对于每个对象，基于3D体积数据确定至少包括对象的量词描述的语义描述; 并且在接收到对象的用户选择时，在显示对象的3D图像的同时呈现所选对象的语义描述。 上述解决方案可以以相对准确的方式为被检查行李中的对象创建3D模型，从而为随后的形状特征提取和安全检查提供更好的依据，并减少遗漏因素。

公开(公告)号：US20150185356A1

公开(公告)日：2015-07-02

申请号：US14582076

申请日：2014-12-23

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Huaping TANG ,  Zhiqiang CHEN ,  Chuanxiang TANG ,  Huaibi CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Yaohong LIU ,  Shangmin SUN ,  Xinshui YAN ,  Zhanfeng QIN

IPC: G01V5/00

CPC classification number: G01V5/0016 ,  G01V5/0033 ,  G01V5/005 ,  G01V5/0066

Abstract: The present invention may perform fluoroscopic imaging simultaneously on the subjects in at least two channels using only one electron accelerator, at least two sets of X-ray beams and at least two sets of detector systems, through the design of the electron accelerator, the shielding and collimating device, the at least two detector arrays and various mechanical composite structures. The X-ray fluoroscopic imaging system according to the present invention may be designed in specific forms of a stationary type, an assembled type, a track mobile type or vehicular mobile type, etc., and has advantages such as simple structure, low cost, strong function, good image quality and the like.

Abstract translation: 本发明可以通过电子加速器的设计，通过电子加速器的设计，仅使用一个电子加速器，至少两组X射线束和至少两组检测器系统，在至少两个通道中的受试者上进行透视成像 和准直装置，至少两个检测器阵列和各种机械复合结构。 根据本发明的X射线透视成像系统可以以固定型，组装式，轨道移动型或车辆型移动式等的特定形式设计，具有结构简单，成本低廉等优点， 功能强大，图像质量好等优点。

公开(公告)号：US20150048984A1

公开(公告)日：2015-02-19

申请号：US14284642

申请日：2014-05-22

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Jieqing YANG ,  Wenguo LIU ,  Xilei LUO ,  Bin SANG ,  Lei ZHENG

IPC: H01Q13/02 ,  H01Q21/06 ,  H01Q21/00

CPC classification number: H01Q13/02 ,  H01Q9/0457 ,  H01Q13/0266 ,  H01Q13/0283 ,  H01Q21/0087 ,  H01Q21/06 ,  H01Q21/064 ,  H01Q21/065 ,  Y10T29/49016

Abstract: There is provided a waveguide horn array, a method for forming the waveguide horn array, and an antenna system. The array includes a rectangular metal plate which is processed to have a cross section comprised of a plurality of rectangular holes arranged in the length direction of the rectangular metal plate, the lower part of each hole being formed as a rectangular waveguide, and the upper part of each hole being formed as a horn; and a groove extending in the direction along which the plurality of holes are arranged and having a predetermined depth, which is formed at two sides of the holes on the top surface of the rectangular metal plate. According to the embodiments, it is possible to maintain the good properties of the antenna in terms of bandwidth and directivity, while enhancing the isolation between the transmitting antenna and the receiving antenna in the system.

Abstract translation: 提供了波导喇叭阵列，形成波导喇叭阵列的方法和天线系统。 阵列包括矩形金属板，其被处理成具有沿矩形金属板的长度方向布置的多个矩形孔的横截面，每个孔的下部形成为矩形波导，上部 每个孔形成为喇叭; 以及在矩形金属板的上表面上的孔的两侧形成有沿着多个孔布置并具有预定深度的方向延伸的槽。 根据实施例，可以在带宽和方向性方面保持天线的良好性质，同时增强系统中发射天线与接收天线之间的隔离。

公开(公告)号：US20140369458A1

公开(公告)日：2014-12-18

申请号：US14304848

申请日：2014-06-13

Applicant: NUCTECH COMPANY LIMITED

Inventor： Le SHEN ,  Yuxiang XING ,  Li ZHANG ,  Zhiqiang CHEN

IPC: G01N23/04

CPC classification number: G01N23/046 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5205 ,  A61B6/5258 ,  G06T11/005 ,  G06T11/006 ,  G06T2211/408 ,  G06T2211/436

Abstract: Disclosed is a CT imaging method and system. The method includes: CT scanning an object with a dual-energy CT system to obtain a first complete set of projection data in a first scan mode, and to obtain a second incomplete set of projection data in a second scan mode; reconstructing a first attenuation coefficient image of the object from the first set of projection data, and extracting, from the first attenuation coefficient image, prior structure information of the object indicating edge intensity; and reconstructing a second attenuation coefficient image of the object from the second incomplete set of projection data using the extracted prior structure information as a constraint. With the method using the prior structure information of the imaged object as a constraint in reconstruction, it is possible to dramatically reduce an amount of data required for reconstruction, and achieve satisfactory effects even with ill-conditioned problems of limited-angle and inner reconstruction.

Abstract translation: 公开了一种CT成像方法和系统。 该方法包括：用双能量CT系统对物体进行CT扫描，以第一扫描模式获得第一完整的投影数据集，并以第二扫描模式获得第二不完全投影数据集; 从所述第一组投影数据重建所述对象的第一衰减系数图像，并且从所述第一衰减系数图像提取所述对象的先前结构信息，指示边缘强度; 以及使用所提取的先前结构信息作为约束，从所述第二不完全投影数据集合重构所述对象的第二衰减系数图像。 通过使用成像对象的先前结构信息作为重建中的约束的方法，可以显着减少重建所需的数据量，并且即使在有限角度和内部重建的不良条件问题的情况下也能够获得令人满意的效果。