公开(公告)号：EP2960817A1

公开(公告)日：2015-12-30

申请号：EP15174244.2

申请日：2015-06-29

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  ZHAO, Ziran ,  WU, Xianghao ,  LIU, Limin ,  LI, Min ,  SONG, Xiaoming ,  HUANG, Xinfang ,  LI, Ying

IPC分类号： G06F17/30 ,  G01V5/00

CPC分类号： G06T1/20 ,  G06F17/30861 ,  G06F17/30902 ,  G06T1/60

摘要： The present disclosure provides a radiation image inspection system based on B/S architecture. The system comprises: at least one client terminal, configured to initiate an image operation request to a Web server, and display an image operation result on a browser of the client terminal upon receiving a response from the Web server; an image processing assembly, configured to query, based on the image operation request from the client terminal and forwarded by the Web server, an image which the client terminal desires to process, perform an operation on an image as requested by the client terminal, convert the resulted image into an image in a designated format and quality and return the converted image to the browser of the client terminal via the Web server for displaying; and the Web server, configured to receive the image operation request from the client terminal, forward the image operation request to the image processing assembly, and return the image operation result from the image processing assembly to the client terminal.

摘要翻译： 本公开提供了一种基于B / S架构的辐射图像检测系统。 该系统包括：至少一个客户终端，被配置为发起对Web服务器的图像操作请求，并且在接收到来自Web服务器的响应时，在客户终端的浏览器上显示图像操作结果; 图像处理组件，被配置为基于来自客户终端的图像操作请求查询并由Web服务器转发，客户机终端希望处理的图像，对客户终端所请求的图像执行操作，转换 将所得到的图像转换为指定格式的图像和质量，并且经由Web服务器将转换的图像返回到客户终端的浏览器以进行显示; 以及Web服务器，被配置为从客户终端接收图像操作请求，将图像操作请求转发到图像处理组件，并将图像操作结果从图像处理组件返回到客户端。

公开(公告)号：EP2589942A1

公开(公告)日：2013-05-08

申请号：EP10838371.2

申请日：2010-12-28

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： CHEN, Zhiqiang ,  LI, Yuanjing ,  ZHAO, Ziran ,  LIU, Yinong ,  WU, Wanlong ,  LUO, Xilei ,  ZHENG, Zhimin ,  LIN, Dong ,  SHEN, Zongjun ,  CAO, Shuo

IPC分类号： G01K11/00 ,  G01N22/00

CPC分类号： G01K11/006 ,  G01N22/00

摘要： Disclosed is a millimeter-wave receiving device. The device includes at least one radiometer (83); and a positioning assembly (824) for holding the radiometer (83), wherein the positioning assembly (824) comprises: a first positioning member (82) having a first surface (821); a second positioning member (84) having a second surface (841), the first surface (821) of the first positioning member (82) and the second surface (841) of the second positioning member (84) holding the radiometer (83) in opposite to each other. With the configuration according to the present invention, the at least one radiometer (83) in the millimeter-wave receiving device can be located in all of freedoms on basis of various design requirements of the radiation path to ensure that the radiometer (83) can be arranged in desired receiving positions.

摘要翻译： 公开了一种毫米波接收装置。 该装置包括至少一个辐射计（83）; 以及用于保持所述辐射计（83）的定位组件（824），其中所述定位组件（824）包括：具有第一表面（821）的第一定位构件（82） 具有第二表面（841），第一定位构件（82）的第一表面（821）和保持辐射计（83）的第二定位构件（84）的第二表面（841）的第二定位构件（84） 彼此相反。 利用根据本发明的配置，毫米波接收装置中的至少一个辐射计（83）可以基于辐射路径的各种设计要求而位于所有自由度中，以确保辐射计（83）可以 被布置在期望的接收位置。

公开(公告)号：EP2573551A1

公开(公告)日：2013-03-27

申请号：EP11778783.8

申请日：2011-04-28

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  LI, Yuanjing ,  ZHAO, Ziran ,  LIU, Yinong ,  WU, Wanlong ,  ZHANG, Li ,  TU, Chao ,  TANG, Le ,  JIN, Yingkang ,  CAO, Shuo ,  DING, Guangwei

IPC分类号： G01N23/04

摘要： The present invention discloses a scanning device of back-scatter imaging with a radiation beam, comprising: a radiation source; a fixed shield plate and a rotatable shield body disposed between the radiation source and a object to be scanned respectively, wherein the fixed shield plate is stationary with respect to the radiation source and the rotatable shield body is rotatable with respect to the fixed shield plate. The fixed shield plate is provided with a ray passing-through region thereon, which allows for a radiation beam from the radiation source to pass through the fixed shield plate, a ray incidence region and a ray emergence region are arranged on the rotatable shield body respectively, during the rotatable scanning of the rotatable shield body, the ray passing-through region of the fixed shield plate continuously intersects with the ray incidence region and the ray emergence region of the rotatable shield body to generate collimated holes for scanning. The ray passing-through region of the fixed shield plate is a rectilinear slit, the rotatable shield body is a cylinder, and the ray incidence and emergence regions are configured to be a series of small discrete holes disposed along a spiral line respectively. In addition, the present invention discloses a scanning method for back-scatter imaging with a radiation beam.

公开(公告)号：EP2230506B1

公开(公告)日：2012-10-10

申请号：EP08871731.9

申请日：2008-12-25

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  LIU, Yinong ,  ZHAO, Ziran ,  WANG, Lian ,  ZHANG, Lan ,  YI, Yumin ,  ZHANG, Jinyu

IPC分类号： G01N23/04

CPC分类号： G01V5/0016 ,  A61B6/4429

公开(公告)号：EP2256477B1

公开(公告)日：2012-08-01

申请号：EP09717946.9

申请日：2009-02-16

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Zhiqiang ,  ZHANG, Li ,  WANG, Yingxin ,  ZHAO, Ziran ,  LI, Yuanjing ,  LIU, Yinong ,  HUANG, Zhifeng ,  XING, Yuxiang

IPC分类号： G01N21/35

CPC分类号： G01N21/3581

摘要： A phase contrast imaging method comprises: using a Terahertz radiation to radiate an object in order to interact with the object; making the Terahertz radiation after interacting with the object radiating a diffraction grating; shifting the diffraction grating along the diffraction grating wave vector direction in order to measure the light intensity distribution of the Terahertz radiation after interacting with the object and the grating in the diffraction field for the different grating positions; and recovering a phase contrast image of the object based on the light intensity distribution. Besides, a phase contrast imaging apparatus comprises: a Terahertz radiation emitter(1), which produces the Terahertz radiation to radiate an object in order to interact with the object; a diffraction grating(3), which is radiated by the Terahertz radiation after interacting with the object; a Terahertz radiation detector(4), which measures the light intensity distribution of the Terahertz radiation after interacting with the object and the grating in the diffraction field for the different grating positions; a data collecting and processing system(6), which recovers a phase contrast image of the object based on the light intensity distribution.

公开(公告)号：EP2189785A1

公开(公告)日：2010-05-26

申请号：EP08800646.5

申请日：2008-09-25

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  WANG, Xuewu ,  HU, Haifeng ,  WU, Hongxin ,  LI, Yuanjing ,  LIU, Yinong ,  ZHAO, Ziran ,  XING, Yuxiang ,  TANG, Hu ,  YI, Yumin ,  ZHANG, Jinyu

IPC分类号： G01N23/04 ,  G01N23/083

CPC分类号： G01N9/24 ,  G01V5/00

摘要： Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether the inspected liquid article is dangerous based on the physical attributes. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.

摘要翻译： 公开了用于双能CT成像的液体物品的安全检查的方法和装置。 该方法包括以下步骤：通过CT扫描获得包括要检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并根据物理属性确定被检液体是否危险。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。 在正常的CT扫描技术中，扫描位置可以由操作员预先设置，也可以通过DR图像进行设置，或者通过DR图像的自动分析设置。

公开(公告)号：EP2009428A3

公开(公告)日：2010-01-27

申请号：EP08153187.3

申请日：2008-03-22

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Zhiqiang ,  HU, Haifeng ,  LI, Yuanjing ,  ZHANG, Li ,  LIU, Yinong ,  WANG, Xuewu ,  QIU, Lijun ,  ZHANG, Hong

IPC分类号： G01N23/10 ,  G01V5/00

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： Disclosed are a method and a device for inspection of drugs concealed in liquid articles without opening the outer packages. The method comprises the steps of: emitting radiation beams to transmit through the liquid article; receiving the radiation beams transmitted through the liquid article to get multi-angle projection data; inversely operating the multi-angle projection data based on the uniformity of the liquid article to obtain an attribute value of the inspected liquid article; retrieving a reference attribute value in a pre-created database by using the identification information of the liquid article as an index, and calculating a difference between the calculated attribute value and the reference attribute value; and determining whether the difference is larger than a predefined threshold value; wherein it is concluded that there are drugs concealed in the liquid article when the difference is determined to be larger than the predefined threshold value.

公开(公告)号：EP2078957A1

公开(公告)日：2009-07-15

申请号：EP06828437.1

申请日：2006-12-22

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  LI, Yuanjing ,  LIU, Yinong ,  LI, Junli ,  PENG, Hua ,  LIU, Yaohong ,  SUN, Shangmin ,  ZHANG, Jinyu ,  ZHANG, Qingjun ,  ZHANG, Li ,  XIE, Yali ,  DENG, Yanli ,  RUAN, Ming ,  LIANG, Siyuan ,  YANG, Guang ,  JIA, Wei

IPC分类号： G01N23/04

CPC分类号： G01N23/10 ,  G01V5/0016

摘要： A radiation inspection system is disclosed. The radiation inspection system comprises: an inspection passage through which a moving object under inspection can pass, a radiation source disposed on a side of the inspection passage for emitting radiation, an array of detectors disposed on the other side of the inspection passage opposite to the radiation source for receiving the radiation emitted from the radiation source, a detector for detecting the moving object, and a controller for receiving a signal from the detector and controlling the radiation source to emit radiation when the detector detects the moving object for radiation imaging and inspection of the moving object. According to the radiation inspection system, the controller can control the radiation source to automatically emit radiation beam based on the detection signal from the detector for inspecting the moving object. As a result, inspection efficiency is improved, safety is increased, and misoperation of the radiation source is eliminated.

摘要翻译： 一种放射线检测系统是游离缺失盘。 辐射检查系统包括：检查通道，通过该被检查的运动物体可以通过，设置在检查通道的一侧的辐射源在设置于相对的检查通道的另一侧的检测器的阵列发射辐射 用于接收从所述辐射源发射的辐射，用于检测该移动物体的检测器，以及用于从检测器接收信号并控制所述辐射源当检测器检测为放射线成像和检测移动物体发射辐射的控制器辐射源 移动物体的。 。据辐射检查系统，所述控制器可以控制所述辐射源基于来自所述检测器用于检测移动物体的检测信号自动发出的辐射束。 其结果是，检查效率提高，安全性提高，并且辐射源的误操作被消除。

公开(公告)号：EP4403111A1

公开(公告)日：2024-07-24

申请号：EP22889065.3

申请日：2022-10-11

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  SUN, Yunda ,  ZHAO, Zhenhua ,  JIN, Xin ,  SHEN, Le ,  LIANG, Wuyang

IPC分类号： A61B6/03

CPC分类号： G06T11/005 ,  G01N23/046 ,  G01N2223/41920130101

摘要： Provided are a method and a device for controlling an output beam of an X-ray source in an imaging system, a CT imaging system, an electronic apparatus, a storage medium and a program product, which relate to a field of security inspection imaging technology. The method includes: receiving (S210) an encoder signal and an X-ray source output beam signal, and initially synchronizing the encoder signal and the X-ray source output beam signal; recording (S220) a coded value M of the encoder at moment tm, and a coded value N of the encoder at moment tm+1, where each of M, N, and m is an integer; determining (S230) that a duration from the moment tm to the moment tm+1 is an actual output beam time interval T of the X-ray source, when it is determined that a difference value between the coded value M and the coded value N satisfies a preset value a, where a is an integer; determining (S240) a gap time TG in the actual output beam time interval T based on a preset output beam time interval TJ of the imaging system and the actual output beam time interval T; and controlling (S250) the X-ray source not to emit an X-ray beam within the gap time TG. The method solves the problem of sampling image disorder caused by a belt speed fluctuation.

公开(公告)号：EP4394696A1

公开(公告)日：2024-07-03

申请号：EP22860072.2

申请日：2022-07-08

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  SUN, Yunda ,  ZHENG, Juan ,  WANG, Lu ,  YANG, Tao ,  LI, Dong

IPC分类号： G06T7/00 ,  G01V5/00 ,  G01N23/04

CPC分类号： G06V10/44 ,  G06V20/64 ,  G01V5/00 ,  G06T7/00 ,  G01N23/04

摘要： A method and an apparatus of identifying at least one target object for a security inspection CT are provided. The method includes: performing a dimension reduction on three-dimensional CT data to generate a plurality of two-dimensional dimension-reduced views (S10); performing a target identification on a plurality of two-dimensional views to obtain a set of two-dimensional semantic descriptions of the at least one target object, where the plurality of two-dimensional views include the plurality of two-dimensional dimension-reduced views (S20); and performing a dimension increase on the set of two-dimensional semantic descriptions to obtain a three-dimensional recognition result of the at least one target object (S30).