公开(公告)号：US20200012010A1

公开(公告)日：2020-01-09

申请号：US16491891

申请日：2017-12-20

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Wanlong WU ,  Ming RUAN ,  Yingkang JIN ,  Guangwei DING ,  Zongjun SHEN ,  Jiajiang ZHAO

IPC: G01V5/00

Abstract: A human body security inspection apparatus, a method of operating the same, and an associated filter device are disclosed. The human body security inspection apparatus includes a radiation beam exit configured for emitting a radiation beam; a beam guiding box configured for guiding the radiation beam; and a filter device configured between the radiation beam exit and the beam guiding box. The filter device includes a housing and a filter cage having a central axis. The filter cage is formed by arranging two or more pairs of filtering sheets, which are made of different materials and/or have different thicknesses, in an encircling way. The filter cage is rotatable about its central axis such that at least one pair of filtering sheets is capable of filtering the radiation beam to adjust an outputted dosage of the radiation beam of the human body security inspection apparatus.

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：US20230251399A1

公开(公告)日：2023-08-10

申请号：US18013094

申请日：2021-06-24

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yingkang JIN ,  Xiaoyi HE ,  Li ZHANG ,  Mengjiao ZHAO ,  Zhimin ZHENG ,  Yihai ZHANG ,  Yaning LI ,  Xiaoxiao FENG

IPC: G01V8/00

CPC classification number: G01V8/005

Abstract: Provided is a server of a checking system based on a millimeter wave security inspection device, connected to a security inspection instrument through a switching system, the server includes a memory and a processor, the memory stores instructions, and the instructions, when executed by the processor, cause the processor to: receive a scanned image of an object and an ATR image interpretation result of the object from the security inspection instrument, wherein the ATR image interpretation result is obtained by the security inspection instrument performing an automatic threat recognition (ATR) image interpretation on the scanned image, and perform a manual inspection task on the object and perform an image interpretation task on the scanned image according to a working mode, wherein the working mode indicates whether the checking system is provided with a manual inspection station and an image interpretation station.

公开(公告)号：US20200249373A1

公开(公告)日：2020-08-06

申请号：US16725886

申请日：2019-12-23

Applicant: Nuctech Company Limited

Inventor： Ziran ZHAO ,  Yingkang JIN ,  Lingbo QIAO ,  Zhimin ZHENG ,  Ming XU ,  Xilei LUO

IPC: G01V8/00 ,  G03H1/00

Abstract: The disclosure discloses a millimeter wave security inspection apparatus and a method for inspecting human or article. The apparatus includes: a door device including a first door and a second door arranged in a stacked mode and each made of a material allowing a millimeter wave to penetrate therethrough; a millimeter wave transceiver arranged between the first door and the second door and including an millimeter wave transceiving antenna array configured to transmit and receive a millimeter wave signal to and from an entrance side and an exit side of the door device; and a linear driver to which the millimeter wave transceiver is connected to be movable relative to the door device, so as to scan a first side of an object positioned at the entrance side and a second side of the object opposite to the first side positioned at the exit side.

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：US20240054698A1

公开(公告)日：2024-02-15

申请号：US18266140

申请日：2021-11-25

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Ziran ZHAO ,  Xing LIU ,  Lingbo QIAO ,  Zhimin ZHENG ,  Yingkang JIN ,  Yan YOU

IPC: G06T11/00 ,  G01S13/89 ,  G06T7/11 ,  G06N3/084 ,  G01V8/00 ,  G01S13/88

CPC classification number: G06T11/003 ,  G01S13/89 ,  G06T7/11 ,  G06N3/084 ,  G01V8/005 ,  G01S13/887 ,  G06T2200/04 ,  G06T2207/10028 ,  G06T2207/20084

Abstract: The present application relates to a three-dimensional imaging method and apparatus, and a 3D imaging device. The method comprises generating 3D image information by capturing a 3D capture area containing a detected object using a depth camera; extracting a mask of the detected object from the 3D image information; determining an imaging area associated with the detected object based on the mask of the detected object; collecting data from a holographic data collection area containing the detected object by a holographic data collection device, generating holographic data; and performing image reconstruction on the imaging area based on the holographic data.

公开(公告)号：US20230384475A1

公开(公告)日：2023-11-30

申请号：US18034349

申请日：2021-09-30

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yingkang JIN ,  Xiaoyi HE ,  Mengjiao ZHAO ,  Zhimin ZHENG ,  Yihai ZHANG ,  Yaning LI ,  Xiaoxiao FENG

IPC: G01V8/00 ,  G01V8/10 ,  G01S13/88 ,  G01S13/89

CPC classification number: G01V8/005 ,  G01V8/10 ,  G01S13/887 ,  G01S13/89

Abstract: A method and a system of performing security inspection of human body based on millimeter-wave. The method includes: displaying, by a first display device, information related to a designated posture to a person to be inspected before the person enters an inspection channel defined by a millimeter-wave human body security inspection instrument, the designated posture being expected to be taken by the person when scanning the person with the instrument; guiding the person to enter the inspection channel and stand at a designated standing position within the inspection channel in a standing posture substantially complying with the designated posture; scanning, by the instrument, the person, to obtain millimeter-wave scanning data; and performing, by a workstation, a reconstruction of millimeter-wave scanning image of the person, a confirmation for the standing posture of the person, and a recognition of a suspected item of the person, based on the millimeter-wave scanning data.

公开(公告)号：US20190277999A1

公开(公告)日：2019-09-12

申请号：US16296686

申请日：2019-03-08

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Yuanjing LI ,  Xilei LUO ,  Yingkang JIN ,  Zhimin ZHENG ,  Wanlong WU ,  Lingbo QIAO ,  Wenguo LIU

IPC: G01V8/00 ,  G01S13/89 ,  G01V8/26

Abstract: An extensible millimeter wave security inspection system, a security inspection method for a human body using the extensible millimeter wave security inspection system and an extensible millimeter wave scanning unit are disclosed. The extensible millimeter wave security inspection system includes at least one security inspection passage, at least one scanning units are provided on at least one side of two sides of each security inspection passage, each scanning unit includes at least one millimeter wave transceiving module, the millimeter wave transceiving module includes an array of millimeter wave antennas configured to transmit and receive millimeter wave signals and a millimeter wave transceiver associated with the array of millimeter wave antennas, and the millimeter wave transceiving module is arranged to scan by millimeter wave a target to be inspected in the security inspection passage along a direction in which the security inspection passage extends.

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。