公开(公告)号：US20140185773A1

公开(公告)日：2014-07-03

申请号：US14136514

申请日：2013-12-20

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing LI ,  Ziran ZHAO ,  Wanlong WU ,  Le TANG ,  Yinong LIU ,  Yingkang JIN ,  Wenguo LIU ,  Shuo CAO ,  Zhimin ZHENG ,  Guangwei DING ,  Ming RUAN ,  Xiuwei CHEN

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01V5/0025

Abstract: A human body security inspection system including a plurality of ray emitting-detecting modules, which are configured to emit X-rays to the object to be inspected and to receive X-rays scattered from the object to be inspected, wherein the ray emitting-detecting modules form an enclosed region with respect to the object to be inspected and security inspection is implemented on the object in the enclosed region.

Abstract translation: 一种人体安全检查系统，包括多个射线发射检测模块，其被配置为向被检查物体发射X射线并且接收从被检查物体散射的X射线，其中，所述射线发射检测 模块相对于待检查对象形成封闭区域，并且在封闭区域中的对象上实施安全检查。

公开(公告)号：US20140185770A1

公开(公告)日：2014-07-03

申请号：US14138476

申请日：2013-12-23

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yuanjing LI ,  Wanlong WU ,  Yingkang JIN ,  Li ZHANG ,  Le TANG ,  Chenguang ZHU ,  Xianli DING ,  Xiuwei CHEN ,  Ming RUAN ,  Chengcong XU ,  Xilei LUO

IPC: A61B6/00

CPC classification number: A61B6/483 ,  G01T1/167 ,  G01V5/0025

Abstract: Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced.

Abstract translation: 公开了人体背散射检查系统和方法。 在本发明中，由具有螺旋状分布的飞点的飞点形成单元调制的X射线具有在照射面上具有交替的峰和谷的分布。 以这种方式，可以精确地控制扫描开始时间，以使两个装置的扫描开始时间不同于周期的一半。 也就是说，当从另一个装置输出的光束为最小时，从一个装置输出的光束是最大的。 换句话说，即使一个设备的射线源发射光线，也不会显着影响其他设备的成像结果。 以这种方式，两个装置可以发射光线并同时进行扫描，因此总扫描时间减少。

公开(公告)号：US20140185763A1

公开(公告)日：2014-07-03

申请号：US14136494

申请日：2013-12-20

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Wanlong WU ,  Le TANG ,  Yinong LIU ,  Yingkang JIN ,  Guangwei DING ,  Shuo CAO ,  Zhimin ZHENG ,  Wenguo LIU ,  Wentao YU ,  Yi ZHOU

IPC: G01V5/00

CPC classification number: G01V5/005 ,  G01T1/167 ,  G01V5/0025

Abstract: An inspection system included a ray source to emit a ray, a detector to receive the ray, a detection region for placing an object under inspection, and a moving device to move the ray source and the detector around the detection region. Conventional scanning blind zones such as both sides of a human body, both sides of arms and both sides of legs can be completely eliminated. In addition, it is not necessary for a human body under inspection to carry out an action such as turning around to change his or her posture. Therefore, ineffective time can be minimized in the entire detection and a passing rate of persons under inspection can be improved. Furthermore, an inspected person's mental feeling of being controlled due to change of posture can be greatly improved, and his or her mental discomfort and conflicted moods can be reduced.

Abstract translation: 检查系统包括用于发射射线的射线源，用于接收射线的检测器，用于放置被检查物体的检测区域，以及使检测区域周围的射线源和检测器移动的移动装置。 可以完全消除诸如人体两侧，臂的两侧和腿的两侧的常规扫描盲区。 此外，被检查的人体不需要进行转动等动作来改变姿势。 因此，在整个检测中无效时间可以最小化，可以提高检查人员的合格率。 此外，被检查者由于姿势变化而受到控制的心理感觉可以大大提高，并且可以减轻他或她的精神不适和冲动的情绪。

公开(公告)号：US20150339521A1

公开(公告)日：2015-11-26

申请号：US14414515

申请日：2014-07-23

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yuanjing LI ,  Wanlong WU ,  Xianli DING ,  Li ZHANG ,  Yingkang JIN ,  Zongjun SHEN ,  Le TANG

IPC: G06K9/00 ,  G07C9/00 ,  G06T7/00

CPC classification number: G06K9/00362 ,  A61B5/0064 ,  A61B5/1077 ,  A61B6/12 ,  A61B6/463 ,  A61B6/563 ,  G01V5/0008 ,  G06K9/00771 ,  G06K2209/09 ,  G06T7/0002 ,  G06T2207/30196 ,  G06T2207/30232 ,  G07C9/00158

Abstract: The present invention provides a privacy protection method and a human body security inspection system having the same function. The privacy protection method comprises the steps of: acquiring in real-time scanning row or column image data of a personal to be inspected; displaying a physical profile image and an outline image of the personal to be inspected, on basis of the processed image of the scanning row or column image data; transmitting the physical profile image to an equipment end display in a human body security inspection system and displaying it thereon, and displaying the outline image of the personal to be inspected on a remote operation end display of the human body security inspection system; performing the suspicious matter recognition based on the outline image; and correspondingly displaying a suspected frame on the physical profile image, based on the suspicious matter recognized in the outline image.

Abstract translation: 本发明提供了具有相同功能的隐私保护方法和人体安全检查系统。 隐私保护方法包括以下步骤：实时扫描待检查的个人的行或列图像数据; 基于扫描行或列图像数据的处理图像，显示待检查的个人的物理轮廓图像和轮廓图像; 将物理轮廓图像发送到人体安全检查系统中的设备端显示器并在其上显示，并且在人体安全检查系统的远程操作终端显示器上显示被检查人员的轮廓图像; 基于轮廓图像执行可疑物识别; 并且基于在轮廓图像中识别的可疑物，相应地在物理轮廓图像上显示可疑帧。

公开(公告)号：US20150241368A1

公开(公告)日：2015-08-27

申请号：US14572528

申请日：2014-12-16

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yuanjing LI ,  Wanlong WU ,  Ming RUAN ,  Li ZHANG ,  Yingkang JIN ,  Le TANG ,  Xianli DING ,  Chenguang ZHU

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01T1/167 ,  G01V5/0025 ,  G01V5/0091

Abstract: A human body back-scattering inspection method and system are discloses. The method includes: obtaining a back-scattering scan image of a human body under inspection; distinguishing a body image from a background image in the back-scattering scan image; and calculating a feature parameter of the background image to determine whether radioactive substance is carried with the human body. With some embodiments of the present disclosure, it is possible to determine whether any radioactive substance is carried with a human body during back-scattering inspection of the human body. In further embodiments of the present disclosure, it is possible to approximately determine which part(s) of the human body carries the radioactive substance. This improves efficiency of inspection.

Abstract translation: 公开了人体背散射检查方法和系统。 该方法包括：获得检查中的人体的背散射​​扫描图像; 在背散射扫描图像中区分身体图像与背景图像; 并计算背景图像的特征参数，以确定放射性物质是否与人体携带。 利用本公开的一些实施例，可以在人体的后散射检查期间确定任何放射性物质是否携带人体。 在本公开的另外的实施例中，可以大致确定人体的哪一部分携带放射性物质。 这提高了检查的效率。

公开(公告)号：US20150185335A1

公开(公告)日：2015-07-02

申请号：US14576674

申请日：2014-12-19

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Yinong LIU ,  Ming RUAN ,  Yingkang JIN ,  Le TANG

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/2008

Abstract: The invention presents a backscattering scintillation detector. The scintillation detector includes a scintillation crystal detector; a X-ray sensitizing screen, which is disposed forward the scintillation crystal detector and where a backscattered X-ray from an object to be detected is processed and then at least part of the processed X-ray is incident to scintillation crystal detector; and photoelectric multiplier, which is disposed backward the scintillation crystal detector and is configured to collect a light signal from scintillation crystal detector and convert it to an electrical signal. Through the above preferable embodiment, a X-ray sensitizing screen, a scintillation crystal detector, and light guiding and wave-drifting technologies are combined together to obtain a novel scintillation detector, which can improve detection of X-ray, transmission of light signal and conversion of light signal to electrical signal.

Abstract translation: 本发明提出了一种后向散射闪烁检测器。 闪烁检测器包括闪烁晶体检测器; 设置在闪烁晶体检测器前方的X射线增感屏幕，并且处理来自被检测物体的背散射​​X射线，然后处理的X射线的至少一部分入射到闪烁晶体检测器; 以及光电倍增器，其设置在闪烁晶体检测器的后方，并且被配置为从闪烁晶体检测器收集光信号并将其转换为电信号。 通过上述优选实施例，将X射线增感屏，闪烁晶体检测器和导光波漂移技术组合在一起，以获得新的闪烁检测器，其可以改善X射线的检测，光信号的传输和 光信号转换为电信号。

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：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：US20150030205A1

公开(公告)日：2015-01-29

申请号：US14337190

申请日：2014-07-21

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Wanlong WU ,  Yingkang JIN ,  Yinong LIU ,  Wenguo LIU ,  Xianli DING ,  Bin SANG ,  Le TANG ,  Ming RUAN ,  Chenguang ZHU ,  Liaohua FU ,  Fuhua DING ,  Shuo CAO

IPC: G06K9/00 ,  G06T7/00

CPC classification number: G06K9/00771 ,  G06K9/00362 ,  G06K2209/09 ,  G06T7/0002 ,  G06T2207/30196 ,  G06T2207/30232 ,  G07C9/00158

Abstract: The present invention provides a human body security inspection method and system. The method comprises: retrieving in real-time scanning row or column image data of a personal to be inspected; transmitting in real-time the image data to an algorithm processing module and processing these image data by the module; automatically recognizing a suspicious matter by a suspicious matter automatic target recognition technique, after retrieving an image data of an entire scanning image of the personal; any of the following three inspection modes is selected, so as to perform a further processing on basis of the recognition result of the suspicious matter, (1) in a manner of automatic target recognition technique, (2) in a combination manner of the automatic target recognition technique and a privacy protection image; and (3) a combination manner of the automatic target recognition technique, a privacy protection image and human intervention.

Abstract translation: 本发明提供一种人体安全检查方法和系统。 该方法包括：实时检索要检查的个人的行或列图像数据; 将图像数据实时传输到算法处理模块，并通过模块处理这些图像数据; 在检索个人的整个扫描图像的图像数据之后，通过可疑物体自动目标识别技术自动识别可疑物品; 选择以下三种检查模式中的任何一种，以便基于可疑物的识别结果进行进一步处理，（1）以自动目标识别技术的方式，（2）以自动 目标识别技术和隐私保护形象; 和（3）自动目标识别技术，隐私保护图像和人为干预的组合方式。

公开(公告)号：US20140185769A1

公开(公告)日：2014-07-03

申请号：US14135840

申请日：2013-12-20

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Ming RUAN ,  Yinong LIU ,  Yingkang JIN ,  Le TANG ,  Yanjie WEN ,  Xiuwei CHEN ,  Fuhua DING ,  Bin SANG ,  Zongjun SHEN

IPC: G01N23/203

CPC classification number: G01N23/203 ,  A61B6/4021 ,  A61B6/4266 ,  A61B6/483 ,  G01T1/167 ,  G01V5/0025

Abstract: A human body back-scattering inspection system is disclosed. The system comprises a flying-spot forming unit configured to output beams of X-rays, a plurality of discrete detectors which are arranged vertically along a human body to be inspected, and a controlling unit coupled to the flying-spot forming unit and the plurality of detectors, and configured to generate a control signal to control the flying-spot forming unit and the plurality of detectors to perform a partition synchronous scan on the human body to be inspected vertically. The present disclosure utilizes the geometry property of the human body back-scattering inspection system, and proposes a multiple-point synchronous scan mechanism which largely accelerates the inspection of human body.

Abstract translation: 公开了一种人体背散射检查系统。 该系统包括：飞点形成单元，被配置为输出X射线束;沿着待检查的人体垂直排列的多个离散检测器;以及耦合到飞点形成单元和多个 的检测器，并且被配置为产生控制信号以控制飞点形成单元和多个检测器，以对垂直检查的人体进行分区同步扫描。 本发明利用人体背散射检查系统的几何特性，并提出了一种大大加速人体检查的多点同步扫描机构。