公开(公告)号：US20180164262A1

公开(公告)日：2018-06-14

申请号：US15827703

申请日：2017-11-30

Applicant: Nuctech Company Limited

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Ziran ZHAO ,  Weiping ZHU ,  Huishao HE ,  Qiufeng MA ,  Xiang ZOU ,  Biao CAO

IPC: G01N30/64 ,  H01J49/06 ,  G01N27/62

CPC classification number: G01N30/64 ,  G01N27/622 ,  G01N2030/025 ,  H01J49/062

Abstract: The present disclosure provides a gas chromatography-ion mobility spectrometry apparatus, including a housing, an injection port mounted to and connected with the housing and configured for input of a gas containing a sample therein, a multicapillary column configured for separation of a gas substance and an ion mobility tub configured for analysis of the gas substance. The gas chromatography-ion mobility spectrometry apparatus further includes: a gas path part connected with the ion mobility tube and configured for providing the gas to the ion mobility tube and receiving a gas discharged from the ion mobility tube; and a buffer base part detachably mounted to the housing and configured to isolation vibration outside the buffer base part, the ion mobility tube being disposed on the buffer base part, wherein the gas path part is mounted in an interior space of the buffer base part.

公开(公告)号：US20180158785A1

公开(公告)日：2018-06-07

申请号：US15718919

申请日：2017-09-28

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Wenjian ZHANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Xiang ZOU ,  Huishao HE ,  Weishu LI ,  Nan BAI

IPC: H01L23/00 ,  H01L31/02 ,  H01L31/024 ,  H01L31/18 ,  H01L23/15 ,  H01L23/498

Abstract: The present disclosure proposes a packaging structure for a metallic bonding based opto-electronic device and a manufacturing method thereof. According to the embodiments, the packaging structure for an opto-electronic device may comprise an opto-electronic chip and a packaging base. The opto-electronic chip comprises: a substrate having a first substrate surface and a second substrate surface opposite to each other; an opto-electronic device formed on the substrate; and electrodes for the opto-electronic device which are formed on the first substrate surface. The packaging base has a first base surface and a second base surface opposite to each other, and comprises conductive channels extending from the first base surface to the second base surface. The opto-electronic chip is stacked on the packaging base in such a manner that the first substrate surface faces the packaging base, and the electrodes formed on the first substrate surface of the opto-electronic chip are bonded with corresponding conductive channels in the packaging base.

公开(公告)号：US20170184758A1

公开(公告)日：2017-06-29

申请号：US15280835

申请日：2016-09-29

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yuanjing LI ,  Wanlong WU ,  Le TANG ,  Ming RUAN

IPC: G01V5/00 ,  H05G1/32

CPC classification number: G01V5/0016 ,  H05G1/32

Abstract: The present disclosure provides a human body security inspection system, including: an X-ray source configured to provide X-ray radiation for scanning a human body to be inspected, a detector configured to receive X-ray radiation transmitting through the human body to be inspected and generate a transmission signal, a sensor configured to obtain the weight of the human body to be inspected, a carrying device configured to carry and move the human body to be inspected in a direction such that the human body is scanned, and a controller configured to receive a signal from the sensor, determine the weight of the human body to be inspected based on the signal from the sensor, and determine and control a voltage and/or current applied to the X-ray source and a movement speed of the carrying device according to the weight.

公开(公告)号：US20170138914A1

公开(公告)日：2017-05-18

申请号：US15276595

申请日：2016-09-26

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Weiping ZHU ,  Yaohong LIU ,  Qiufeng MA ,  Xiang ZOU ,  Huishao HE ,  Jianping CHANG ,  Song LIANG

IPC: G01N30/72 ,  G01N23/06 ,  G01B15/00

Abstract: A darkroom type security inspection apparatus and a method of performing an inspection using the darkroom type security inspection apparatus. An apparatus includes a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing include: a sample collecting unit configured to collect a sample, a conveyor unit, and a X-ray detection unit to detect a position of the objected to be inspected, wherein the X-ray detection unit is configured to determine the position of the objected to be inspected within the sampling assembly so that the object to be inspected together with the conveyor unit is conveyed to an expected position; and a sample processing assembly, wherein the assemblies disposed inside the housing are communicated by fittings or connectors.

公开(公告)号：US20170024862A1

公开(公告)日：2017-01-26

申请号：US15217613

申请日：2016-07-22

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Zhiming WANG

IPC: G06T5/00 ,  G06T7/40 ,  G06T7/00

CPC classification number: G06T5/003 ,  G06T7/00 ,  G06T2207/10116 ,  G06T2207/20021 ,  G06T2207/20076 ,  G06T2207/30168

Abstract: The present disclosure relates to a method and device for estimating a point spread function. In one implementation, a method includes capturing, by a scanning device, an image by scanning a plurality of rectangle blocks which are same sized and closely arranged, wherein the plurality of rectangle blocks are made of different materials and/or have different mass thicknesses, and an incident direction of rays is perpendicular to a scanning direction and a surface of the plurality of rectangle blocks arranged closely during scanning; obtaining line spread functions for two directions along a length side and a width side of each of the rectangle blocks based on the scanned image, and obtaining standard deviation parameters of the line spread functions; and combining the standard deviation parameters for the two directions to obtain a two dimensional Point Spread Function (PSF) parameter so as to estimate the point spread function.

Abstract translation: 本公开涉及一种用于估计点扩散函数的方法和装置。 在一个实现中，一种方法包括通过扫描与尺寸相同并且紧密排列的多个矩形块来扫描图像，其中多个矩形块由不同的材料制成和/或具有不同的质量厚度， 并且光线的入射方向垂直于扫描方向，并且所述多个矩形块的表面在扫描期间被紧密排列; 基于扫描图像，沿矩形块的长度侧和宽度侧的两个方向获得线扩展函数，并获得线扩展函数的标准偏差参数; 并组合两个方向的标准偏差参数以获得二维点扩展函数（PSF）参数，以估计点扩散函数。

公开(公告)号：US20170023697A1

公开(公告)日：2017-01-26

申请号：US15217787

申请日：2016-07-22

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Juan ZHENG ,  Jianping GU ,  Chunguang ZONG

IPC: G01V5/00

CPC classification number: G01V5/0041 ,  G01N23/04 ,  G01N23/046 ,  G01N23/06 ,  G01N23/083 ,  G01N23/087 ,  G01N23/10 ,  G01V5/0016 ,  G01V5/005 ,  G01V5/12

Abstract: Disclosed is a method and device for estimating weight of an object to be inspected in an inspection system. An effective atomic number and a high-energy gray value of the dual-energy corresponding to each pixel of the object to be inspected are obtained by a dual-energy radiation scanning. A mass-thickness value for a corresponding pixel is obtained from a pre-created mass-thickness attenuation curve by utilizing the effective atomic numbers and the high-energy gray value of the dual-energy for respective pixels. Weight information for at least a part of the object to be inspected is calculated by multiplying the mass-thickness value by the area of the pixel. Such a method may accurately calculate the weight of the object to be inspected and save the cost for a conventional weighing hardware.

Abstract translation: 公开了一种用于在检查系统中估计被检查物体的重量的方法和装置。 通过双能量辐射扫描获得与待检测对象的每个像素相对应的双能量的有效原子序数和高能灰度值。 通过利用有效原子序数和相应像素的双能量的高能量灰度值，从预先创建的质量厚度衰减曲线获得相应像素的质量厚度值。 通过将质量厚度值乘以像素的面积来计算待检查对象的至少一部分的重量信息。 这种方法可以精确地计算待检查物体的重量并节省常规称重硬件的成本。

公开(公告)号：US20170017667A1

公开(公告)日：2017-01-19

申请号：US15282134

申请日：2016-09-30

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Zheng HU ,  Qiang LI

IPC: G06F17/30 ,  G06T7/00 ,  G01N23/04

CPC classification number: G06F17/30256 ,  G01N23/04 ,  G01N2223/401 ,  G01N2223/631 ,  G01V5/0016 ,  G06F17/30274 ,  G06K9/42 ,  G06K9/6215 ,  G06K2209/09 ,  G06K2209/23 ,  G06T7/001 ,  G06T7/337 ,  G06T2207/10116 ,  G06T2207/30268

Abstract: A vehicle inspection method and system are disclosed. In one aspect, the method includes acquiring a transmission image of an inspected vehicle. The method further includes acquiring a transmission image template of a vehicle model corresponding to the model of the inspected vehicle from a database. The method further includes performing registration on the transmission image of the inspected vehicle and the transmission image template. The method further includes determining a difference between a transmission image after the registration and a transmission image template after the registration, to obtain a difference area of the transmission image of the vehicle relative to the transmission image template. The method further includes processing the difference area to determine whether the vehicle carries a suspicious object or not. In some embodiments, this solution can avoid the problems of a detection loophole and a poor effect of manually determining an image in a conventional manner, and is important to assist the security inspection for small vehicles.

Abstract translation: 公开了车辆检验方法和系统。 一方面，该方法包括获取被检查车辆的发送图像。 该方法还包括从数据库中获取与被检查车辆的模型相对应的车辆模型的发送图像模板。 该方法还包括对被检查车辆的发送图像和发送图像模板进行登记。 该方法还包括确定注册之后的发送图像与注册后的发送图像模板之间的差异，以获得相对于发送图像模板的车辆的发送图像的差分区域。 该方法还包括处理差异区域以确定车辆是否携带可疑物体。 在一些实施例中，该解决方案可以避免检测漏洞的问题和以常规方式手动确定图像的差的影响，并且对于帮助小型车辆的安全检查是重要的。

公开(公告)号：US20160084775A1

公开(公告)日：2016-03-24

申请号：US14837205

申请日：2015-08-27

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG ,  Ziran ZHAO ,  Yaohong LIU ,  Jianping GU ,  Liang LI ,  Yuxiang XING

IPC: G01N23/04

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.

Abstract translation: 本公开提供了一种低角度自摆式计算机断层摄影（CT）装置，其设置有X射线加速器和多排检测器，并且构造成包括滑环，使得滑环具有 加速器和其上的检测器能够在被检查对象通过滑环的同时执行单摆往复运动，显示对象的三维CT图像，从而实现对大型物体的精确检查，例如 作为集装箱。

公开(公告)号：US20150371809A1

公开(公告)日：2015-12-24

申请号：US14729622

申请日：2015-06-03

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Fuhua DING ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Wanlong WU ,  Le TANG ,  Yingkang JIN ,  Yanjie WEN

IPC: H01J35/12 ,  G21K1/04 ,  H05G1/12

CPC classification number: H01J35/12 ,  G21K1/043 ,  G21K1/046 ,  H01J2235/1287 ,  H05G1/12

Abstract: The present disclosure provides an X-ray generator with adjustable collimation. The X-ray generator comprises: an assembly of X-ray source, which includes an X-ray tube having a cathode and an anode and a front collimator; a high voltage generator, which is disposed in an extended chamber of a housing for the X-ray tube and which is used for supplying a direct current high voltage between the cathode and the anode of the X-ray tube to excite X-ray beams; a collimation adjustment unit, which is rotatably disposed outside of the front collimator and which is used for adjusting fan-type X-ray beams into continuous pencil-type X-ray beams; and a cooling unit, which is independently mounted to the X-ray tube and which is used for cooling the anode of the X-ray tube; wherein, the assembly of X-ray source, the high voltage generator, the collimation adjustment unit and the cooling unit are integrated as a whole. The X-ray generator with adjustable collimation according to the disclosure has a compact construction, which is helpful in miniaturization, modularization and high efficiency of a security detection equipment.

Abstract translation: 本公开提供了具有可调整准直的X射线发生器。 X射线发生器包括：X射线源的组件，其包括具有阴极和阳极的X射线管和前准直器; 高电压发生器，其设置在用于X射线管的壳体的延伸室中，用于在X射线管的阴极和阳极之间提供直流高电压，以激发X射线束 ; 准直调整单元，其可旋转地设置在前准直仪的外侧，用于将风扇型X射线束调整为连续的铅笔型X射线束; 以及冷却单元，其独立地安装到所述X射线管并且用于冷却所述X射线管的阳极; 其中，X射线源，高压发生器，准直调节单元和冷却单元的组合整体集成。 根据本公开的具有可调准直的X射线发生器具有紧凑的结构，这有助于安全检测设备的小型化，模块化和高效率。

公开(公告)号：US20150206326A1

公开(公告)日：2015-07-23

申请号：US14540413

申请日：2014-11-13

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Ziran ZHAO ,  Li ZHANG ,  Zhiqiang CHEN ,  Shuo WANG ,  Jianping GU ,  Yunda SUN

IPC: G06T11/00 ,  G06T15/06 ,  G06T15/04 ,  G06T15/80 ,  G06T7/00 ,  G06T15/08 ,  G06T15/40 ,  G06T3/40 ,  G06T15/20 ,  G06T1/20 ,  G06T1/00 ,  G06T15/60

CPC classification number: G06T1/0007 ,  G06T1/20 ,  G06T3/403 ,  G06T11/001 ,  G06T11/008 ,  G06T15/04 ,  G06T15/06 ,  G06T15/08 ,  G06T15/205 ,  G06T15/405 ,  G06T15/60 ,  G06T15/80 ,  G06T2200/04 ,  G06T2200/08 ,  G06T2200/28 ,  G06T2207/10072 ,  G06T2207/10081 ,  G06T2210/04 ,  G06T2215/12 ,  G06T2219/2008

Abstract: The present disclosure provides a method for rendering of CT image data. The method includes acquiring 2D image data of a background and 2D image data of a target; rendering the 2D image data of the target into a 3D image of the target to obtain a first hit position of a ray; rendering the 2D image data of the background into a 3D image of the background; adjusting the 3D image of the background based on the first hit position; and synthetically rendering the 3D image of the background and the 3D image of the target. The present disclosure also provides apparatus for implementing the method.

Abstract translation: 本公开提供了一种用于呈现CT图像数据的方法。 该方法包括获取背景的2D图像数据和目标的2D图像数据; 将目标的2D图像数据呈现为目标的3D图像，以获得射线的第一命中位置; 将背景的2D图像数据呈现为背景的3D图像; 基于第一命中位置调整背景的3D图像; 并综合渲染背景的3D图像和目标的3D图像。 本公开还提供了用于实现该方法的装置。