公开(公告)号：US09978184B2

公开(公告)日：2018-05-22

申请号：US14540440

申请日：2014-11-13

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Shuo Wang ,  Jianping Gu ,  Yunda Sun

IPC: G06T19/20 ,  G06T15/08 ,  G06T17/00 ,  G06T7/00 ,  G06T15/06 ,  G06T15/10

CPC classification number: G06T19/20 ,  G06T7/0012 ,  G06T15/06 ,  G06T15/08 ,  G06T15/10 ,  G06T17/005 ,  G06T2207/10136 ,  G06T2210/12 ,  G06T2219/2021

Abstract: The present disclosure provides method and apparatus for marking a target in a 3D image. The method include steps of: acquiring Computed Tomography (CT) image data of a scene; rendering a 3D image of the scene using ray casting based on the CT image data; removing a transparent region from the 3D image based on a fixed 2D transfer function; and marking the target in the 3D image.

公开(公告)号：US20180040115A1

公开(公告)日：2018-02-08

申请号：US15610930

申请日：2017-06-01

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yaohong Liu ,  Jianping Gu ,  Zhiming Wang

IPC: G06T7/00

CPC classification number: G06T7/0002 ,  G06T2207/20016 ,  G06T2207/20064 ,  G06T2207/30168

Abstract: A method and an apparatus for estimating an image fuzziness are provided. The method may comprise: acquiring an image; obtaining a mufti-scale representation of the image by performing a mufti-scale transform on the image; calculating gradients of the image and a normalized histogram of the gradients at each scale based on the multi-scale representation; calculating error vectors between the normalized histogram of gradients at each scale and a normalized original histogram of gradients of the image; performing a weighted summing on the error vectors by using respective weights to obtain a summed result, wherein the weights are determined based on a reciprocal of the sums of squares of the gradients of the image at each scale; estimating the ambiguity of the image based on the summed result.

公开(公告)号：US09869775B2

公开(公告)日：2018-01-16

申请号：US14983411

申请日：2015-12-29

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanchun Wang ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Jianping Chang ,  Wenjian Zhang ,  Shuqing Zhao ,  Xiang Zou ,  Yongqiang Wang

IPC: G01T1/202 ,  G01T1/20

CPC classification number: G01T1/2018

Abstract: A method for processing a ceramic scintillator array, characterized in that, comprising the following steps: (a) forming, in a first direction, a predetermined number of straight first-direction through-cuts which are parallel to each other and spaced from each other on a scintillator substrate by using laser; (b) adequately filling the first-direction through-cuts with an adhesive and solidifying the adhesive; (c) forming, in a second direction. a predetermined number of second direction through-cuts which are parallel to each other at a predetermined interval on the scintillator substrate by using laser, wherein the second direction is perpendicular to the first direction; and (d) adequately filling the second direction through-cuts with the adhesive and solidifying the adhesive bond.

公开(公告)号：US09816028B2

公开(公告)日：2017-11-14

申请号：US14827258

申请日：2015-08-14

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanchun Wang ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Jianping Chang ,  Shuqing Zhao ,  Wenjian Zhang ,  Yongqiang Wang

IPC: B32B27/32 ,  C04B33/32 ,  C04B35/50 ,  C04B35/645 ,  B28B1/00 ,  B28B5/00 ,  B28B3/00 ,  C09K11/77 ,  C04B40/00 ,  C04B35/515 ,  C04B35/547 ,  C04B35/626 ,  C04B35/64

CPC classification number: C09K11/7772 ,  C04B35/5156 ,  C04B35/547 ,  C04B35/6261 ,  C04B35/64 ,  C04B35/645 ,  C04B35/6455 ,  C04B40/0007 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3229 ,  C04B2235/3287 ,  C04B2235/445 ,  C04B2235/5436 ,  C04B2235/5481 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/662 ,  C04B2235/666 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/9653

Abstract: The present disclosure is directed to a rapid process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics by using the combination of spark plasma primary sintering (SPS) and hot isostatic pressing secondary sintering.

公开(公告)号：US09655220B2

公开(公告)日：2017-05-16

申请号：US14758779

申请日：2013-10-31

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun Kang ,  Chuanxiang Tang ,  Ziran Zhao ,  Zhe Zhang

IPC: A61B6/00 ,  H05G1/32 ,  H05G1/10 ,  H05H7/18 ,  G01N23/04 ,  A61B6/03 ,  H01J35/08 ,  H05G2/00

CPC classification number: H05G1/32 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4275 ,  G01N23/046 ,  G01N2223/419 ,  H01J35/08 ,  H01J2235/087 ,  H05G1/10 ,  H05G2/00 ,  H05H7/18

Abstract: CT devices and methods thereof are disclosed. The CT device comprises a circular electron gun array including a plurality of electron guns, each of the electron guns is configured to emit electron beams along the radial direction of the circular electron gun array in sequence according to a predetermine pulse sequence; an acceleration cavity disposed inside of a circle on which the circular electron gun array is positioned, including a plurality of nested concentric coaxial cavities that operate in π mode for accelerating electron beams emitted from the respective electron guns of the circular electron gun array; a circular transmission target disposed inside of a circle on which the acceleration cavity is positioned and being bombarded by the accelerated electron beams to generate X-rays; and a circular detector configured to receive the X-rays after they have passed through an object to be detected.

公开(公告)号：US09577651B2

公开(公告)日：2017-02-21

申请号：US14294625

申请日：2014-06-03

Applicant: NUCTECH COMPANY LIMITED

Inventor： Ziran Zhao ,  Wenguo Liu ,  Zhiqiang Chen ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Bin Sang ,  Lei Zheng

IPC: H03B19/00 ,  H03L7/24 ,  H03B23/00 ,  H03L7/22

CPC classification number: H03L7/24 ,  H03B23/00 ,  H03L7/22

Abstract: A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.

Abstract translation: 一种用于产生包括参考频率源以产生参考频率信号的扫频频率信号的电路，耦合到参考频率源的第一频率组合电路，并用于基于参考频率信号产生第一频带中的扫频信号 频率信号，耦合到所述参考频率源的第二频率组合电路，并且可操作以基于所述参考频率信号在与所述第一频带不同的第二频带中产生扫频频率信号;多电平开关， 第一频率组合电路和第二频率组合电路，以及控制电路，控制第一和第二频率组合电路和多电平开关，以输出第一频带中的扫频信号和第二频率中的扫频频率信号 交替地在多级交换机的输出端发送频带。

公开(公告)号：US09551808B2

公开(公告)日：2017-01-24

申请号：US14140105

申请日：2013-12-24

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Jinyu Zhang ,  Hu Tang ,  Zhanjun Duan ,  Li Zhang ,  Ziran Zhao

IPC: G01N23/04 ,  G01V5/00 ,  G01T1/29

CPC classification number: G01V5/005 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/2985

Abstract: A CT apparatus without a gantry. The CT apparatus includes a scanning passage; a stationary X-ray source arranged around the scanning passage and including a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules may be arranged substantially in an L shape, a semicircular shape, a U shape, an arc shape, a parabolic shape, or a curve shape when viewed in a plane intersecting the scanning passage. The invention ensures that the stationary gantry type CT system has a small size, and a high data identification accuracy.

Abstract translation: 没有龙门架的CT设备。 CT装置包括扫描通道; 固定的X射线源，设置在扫描通道周围并且包括多个射线发射焦点; 以及多个固定检测器模块，其布置在扫描通道周围并且设置成与X射线源相对。 当在与扫描通道相交的平面中观察时，多个检测器模块中的至少一些可以基本上布置成L形，半圆形，U形，弧形，抛物线形或曲线形状。 本发明确保了固定式龙门式CT系统体积小，数据识别精度高。

公开(公告)号：US20160341695A1

公开(公告)日：2016-11-24

申请号：US15115217

申请日：2015-12-24

Applicant: NUCTECH COMPANY LIMITED

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Qiufeng Ma ,  Huishao He ,  Weiping Zhu ,  Xiang Zou ,  Jianping Chang ,  Song Liang

IPC: G01N27/62 ,  G01N30/30 ,  G01N30/46 ,  G01N27/64

CPC classification number: G01N27/622 ,  G01N27/64 ,  G01N30/30 ,  G01N30/46 ,  G01N30/466 ,  G01N2030/3038

Abstract: The present invention discloses a gas analyzing apparatus and a sampling device. The gas analyzing apparatus includes a sampling device and an ion mobility spectrum analysis device. The sampling device includes a multi-capillary column and a temperature control system. The ion mobility spectrum analysis device is adapted for analyzing a gas leaded-in by the sampling device and includes a reaction cavity for reaction between sample molecules and reaction ions, the cavity having a sampling opening for leading-in of the gas. An outlet end of the multi-capillary column is inserted directly into the cavity of the ion mobility spectrum analysis device through the sampling opening of the ion mobility spectrum analysis device.

Abstract translation: 本发明公开了一种气体分析装置和取样装置。 气体分析装置包括取样装置和离子迁移谱分析装置。 采样装置包括多毛细管柱和温度控制系统。 离子迁移谱分析装置适用于分析由采样装置引入的气体，并且包括用于在样品分子和反应离子之间反应的反应腔，空腔具有用于导入气体的取样开口。 多毛细管柱的出口端通过离子迁移谱分析装置的采样口直接插入到离子迁移谱分析装置的空腔中。

公开(公告)号：US09465189B2

公开(公告)日：2016-10-11

申请号：US14573387

申请日：2014-12-17

Applicant: NUCTECH COMPANY LIMITED

Inventor： Ziran Zhao ,  Jianhong Zhang ,  Hongqiu Wang ,  Dong Lin ,  Shixin Zhang ,  Bin Hu ,  Yumin Yi

IPC: G02B7/02 ,  G02B7/04 ,  G02B7/32 ,  G01N21/01 ,  G01N21/63

CPC classification number: G02B7/04 ,  G01N21/01 ,  G01N21/63 ,  G01N2201/02 ,  G02B7/022 ,  G02B7/32

Abstract: An embodiment of the present invention provides an optical probe, comprising: a first sleeve in which a lens is contained, the first sleeve having a light transmission aperture from which an exciting light enters the first sleeve; a second sleeve movably engaged with the first sleeve and having a detection window from which the exciting light having passed through the first sleeve and focused by the lens exits the optical probe, the second sleeve being capable of moving with respect to the first sleeve from a first detection position to a second detection position or from the second detection position to the first detection position; and a positioning member configured to position the second sleeve at the first detection position or the second detection position with respect to the first sleeve.

Abstract translation: 本发明的一个实施例提供了一种光学探针，包括：第一套筒，其中容纳透镜，第一套筒具有透光孔，激发光从该光透射孔进入第一套筒; 第二套筒可移动地与第一套筒接合并且具有检测窗口，已经穿过第一套筒并被透镜聚焦的激发光从该检测窗口离开光学探针，第二套筒能够相对于第一套筒从一个 第一检测位置到第二检测位置或从第二检测位置到第一检测位置; 以及定位构件，其构造成将所述第二套筒相对于所述第一套筒定位在所述第一检测位置或所述第二检测位置。

公开(公告)号：US20160187529A1

公开(公告)日：2016-06-30

申请号：US14958245

申请日：2015-12-03

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Lin Yang ,  Yingkang Jin ,  Ming Ruan ,  Chengcong Xu

IPC: G01V8/00 ,  G01S13/88 ,  G01S13/89 ,  G01V3/12

CPC classification number: G01S13/887 ,  G01S13/89 ,  G01V3/12 ,  G01V8/005

Abstract: The present disclosure provides a human body security inspection apparatus, comprising: a base on which an inspected human stands; a millimeter-wave transceiver configured to perform a millimeter-wave scanning operation on the body of the inspected human standing on the base so as to detect whether or not the inspected human carries contraband and output a first signal; and a metal sensing detector arranged within the base and configured to detect whether or not there is a metallic foreign object in underside of a shoe of the inspected human and output a second signal.

Abstract translation: 本公开提供一种人体安全检查装置，包括：被检查人员所在的基座; 毫米波收发器被配置为对所检查的人体在基座上的身体执行毫米波扫描操作，以便检测被检查的人是否携带违禁品并输出第一信号; 以及金属感测检测器，其布置在所述基座内并且被配置为检测所检查的人的鞋的下侧中是否存在金属异物并输出第二信号。