公开(公告)号：US08724889B2

公开(公告)日：2014-05-13

申请号：US13140761

申请日：2011-05-11

申请人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

发明人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

IPC分类号： G06K9/00 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

CPC分类号： G06T11/006 ,  G06T2211/421

摘要： A method and apparatus for CT image reconstruction may include selecting, by a unit, projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit, implementing, by a unit, a weighting processing on the selected projection data, filtering, by a unit, the weighting processed projection data along a horizontal direction, implementing, by a unit, three-dimensional back projection on the filtered projection data along the direction of ray. The method and apparatus can effectively eliminate cone beam artifact under a large cone angle.

摘要翻译： 用于CT图像重建的方法和装置可以包括以单位选择具有接近于扫描圆形轨道的曲率的曲线上具有相同高度的投影数据，由单元实现对所选投影的加权处理 数据，单位滤波沿着水平方向的加权处理的投影数据，通过一个单元沿着沿着光线的方向实现对经滤波的投影数据的三维反投影。 该方法和装置可以有效地消除大锥角下的锥束伪影。

公开(公告)号：US08513615B2

公开(公告)日：2013-08-20

申请号：US13126067

申请日：2010-12-29

申请人： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Li Zhang ,  Dong Lin ,  Zongjun Shen ,  Xilei Luo ,  Zhimin Zheng ,  Yingkang Jin ,  Shuo Cao ,  Bin Sang

发明人： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Li Zhang ,  Dong Lin ,  Zongjun Shen ,  Xilei Luo ,  Zhimin Zheng ,  Yingkang Jin ,  Shuo Cao ,  Bin Sang

IPC分类号： G01J5/02

CPC分类号： G01V8/005 ,  G01K11/006 ,  G01N22/00

摘要： The present invention discloses a millimeter-wave inspection apparatus. The millimeter-wave inspection apparatus comprises: optics devices, configured to receive millimeter-wave energy radiated from an object to be inspected and focus the received millimeter-wave energy; a radiometer receiving device configured to receive the focused millimeter-wave energy and transform the millimeter-wave energy into electrical signal; and an imaging device configured to generate a temperature image of the object to be inspected based on the electrical signal. Compared with the prior art, the millimeter-wave inspection apparatus of the present invention has a simple and compact structure; it would not be harmful to the human health by employing the passive millimeter-wave human body security inspection technology. With the above configuration, the contraband items to be concealed within the human clothing can be efficiently and effectively detected.

摘要翻译： 本发明公开了一种毫米波检测装置。 毫米波检查装置包括：光学装置，被配置为接收从待检查物体辐射的毫米波能量并聚焦接收的毫米波能量; 辐射计接收装置，被配置为接收聚焦的毫米波能量并将毫米波能量转换成电信号; 以及成像装置，被配置为基于所述电信号生成所述待检查对象的温度图像。 与现有技术相比，本发明的毫米波检测装置具有简单紧凑的结构; 采用被动毫米波人体安全检测技术对人体健康无害。 通过上述结构，能够有效且高效地检测隐藏在人体衣物中的违禁物品。

公开(公告)号：US08362422B2

公开(公告)日：2013-01-29

申请号：US13142500

申请日：2011-04-27

申请人： Qingjun Zhang ,  Zhiqiang Chen ,  Shiping Cao ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yan Zheng ,  Shaoji Mao ,  Xiang Zou ,  Jianping Chang

发明人： Qingjun Zhang ,  Zhiqiang Chen ,  Shiping Cao ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yan Zheng ,  Shaoji Mao ,  Xiang Zou ,  Jianping Chang

IPC分类号： H01J49/40 ,  H01J49/14 ,  G01N27/64

CPC分类号： G01N27/622

摘要： The present invention discloses a sample feeding device for an ion mobility spectrometer, which is adapted to guide a sample to be detected into an inlet of a drift tube of the ion mobility spectrometer. The sample feeding device comprises a solid sample feeding component; a sample inlet component; a attachment component, wherein the solid sample feeding component has an internal cavity defined therein, one end of the solid sample feeding component is communicated with the sample inlet component through the internal cavity, while the other end is communicated with the inlet of the ion drift tube through the attachment component; and a gaseous sample feeding component, comprising a body and an external attachment component, the body has a gas channel therein, and the external attachment component includes an inlet hole which is communicated with the gas channel, wherein when the external attachment component is fitted with the sample inlet component, the body is inserted into the internal cavity, so that a channel of the solid sample feeding component is closed, and only the gas channel of the gaseous sample feeding component is communicated with the inlet of the drift tube of the ion mobility spectrometer.

摘要翻译： 本发明公开了一种用于离子迁移谱仪的样品供给装置，其适于将待检测样品引导到离子迁移谱仪的漂移管的入口中。 样品供给装置包括固体样品供给部件; 样品入口组件; 附着部件，其中固体样品进料部件具有限定在其中的内部空腔，固体样品供给部件的一端通过内部空腔与样品入口部件连通，而另一端与离子漂移入口连通 管穿过附件; 以及气体样品供给部件，其包括主体和外部附接部件，所述主体在其中具有气体通道，并且所述外部附接部件包括与所述气体通道连通的入口孔，其中当所述外部附接部件装配有 样品入口部件，主体插入到内腔中，使得固体样品供给部件的通道关闭，并且仅气态样品供给部件的气体通道与离子的漂移管的入口连通 移动光谱仪。

公开(公告)号：US08290230B2

公开(公告)日：2012-10-16

申请号：US12270908

申请日：2008-11-14

申请人： Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yongshun Xiao

发明人： Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yongshun Xiao

IPC分类号： G06K9/00

CPC分类号： G01N23/04 ,  G01N23/087 ,  G01N2223/423

摘要： A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.

摘要翻译： 公开了一种物质识别方法及其装置。 该方法包括以下步骤：使用高能射线和低能射线发射被检查物体，以获得该物体的高能透射图像和低能透射图像，其中每个像素的值 在高能量图像中表示高能量射线相对于物体的相应部分的高能量透明度，并且低能量图像中的每个像素的值表示低能量透射度的低能量 相对于物体的相应部分的射线; 对于每个像素，计算用于高能量透明度的第一函数的值和用于高能量透明度和低能量透明度的第二函数的值; 以及使用预先创建的分类曲线对由第一函数的值和第二函数的值确定的位置进行分类，以便识别与每个像素对应的对象的一部分的实体的类型。 利用本发明，不仅可以获得对象的发送图像，而且可以获得对象中的素材信息。

公开(公告)号：US20120170716A1

公开(公告)日：2012-07-05

申请号：US13142668

申请日：2011-04-28

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Li Zhang ,  Chao Tu ,  Le Tang ,  Yingkang Jin ,  Shuo Cao ,  Guangwei Ding

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Li Zhang ,  Chao Tu ,  Le Tang ,  Yingkang Jin ,  Shuo Cao ,  Guangwei Ding

IPC分类号： G01N23/203

CPC分类号： G01N23/203

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.

摘要翻译： 本发明公开了一种具有辐射束的背散射成像的扫描装置，包括：辐射源; 固定屏蔽板和设置在辐射源和待扫描物体之间的可旋转屏蔽体，其中固定屏蔽板相对于辐射源是静止的，并且可旋转屏蔽体相对于固定屏蔽板可旋转。 固定屏蔽板在其上设有射线通过区域，其允许来自辐射源的辐射束穿过固定屏蔽板，射线入射区域和射线出射区域分别布置在可旋转屏蔽体上 在可旋转的屏蔽体的可旋转扫描期间，固定屏蔽板的光线通过区域与可旋转屏蔽体的射线入射区域和射线出射区域连续相交，以产生用于扫描的准直孔。 固定屏蔽板的光线通过区域是直线狭缝，可旋转的屏蔽体是圆柱体，射线入射区域和出射区域分别被配置成沿着螺旋线设置的一系列小的分立孔。 此外，本发明公开了一种利用辐射束进行背散射成像的扫描方法。

公开(公告)号：US20120023373A1

公开(公告)日：2012-01-26

申请号：US12842988

申请日：2010-07-23

申请人： Zhiqiang Chen

发明人： Zhiqiang Chen

IPC分类号： G06F11/36

CPC分类号： G06F11/368 ,  G06F11/3692

摘要： A method for testing a software application used in a database system. The method includes receiving multiple changes to the software application, and running a plurality of tests on the software application. The method further includes determining if any of the tests fail, and if any of the tests fail, identifying which changes caused the failures.

摘要翻译： 一种用于测试数据库系统中使用的软件应用程序的方法。 该方法包括对软件应用程序进行多次更改，并对软件应用程序运行多个测试。 该方法还包括确定是否有任何测试失败，并且如果任何测试失败，则确定导致故障的变化。

公开(公告)号：US20120014579A1

公开(公告)日：2012-01-19

申请号：US13142725

申请日：2010-12-27

申请人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yuxiang Xing ,  Xin Jin

发明人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yuxiang Xing ,  Xin Jin

IPC分类号： G06K9/00

CPC分类号： A61B6/5264 ,  A61B6/032 ,  G06T7/285 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2211/412

摘要： A CT device and method based on motion compensation are proposed. The present invention obtains motion parameters of a target object by using a stereo-vision-based motion measurement system, and then implements motion compensation through the technology based on reconstructed image matrix transformation, thereby obtaining a clear 2D/3D CT image while eliminating motion artifacts. The present invention can effectively eliminate motion artifacts caused by the scanned object's own motions in the CT scanning, and can be easily embedded into the existing CT scanning equipments. The present invention can improve quality of the CT images, and is especially important for CT imaging of some special groups of people that can not control their own motions, such as Parkinson's patients, infants, living mouse and so on. It can also improve ultra-high-resolution imaging of human body.

摘要翻译： 提出了一种基于运动补偿的CT装置和方法。 本发明通过使用基于立体视觉的运动测量系统获得目标对象的运动参数，然后通过基于重构图像矩阵变换的技术实现运动补偿，从而获得清晰的2D / 3D CT图像，同时消除运动伪影 。 本发明能够有效地消除CT扫描中被扫描物体自身运动引起的运动伪影，并且可以容易地嵌入现有的CT扫描设备中。 本发明可以提高CT图像的质量，对于一些不能控制自己的运动的特殊人群，如帕金森患者，婴儿，生活小鼠等，对CT成像尤为重要。 它还可以改善人体的超高分辨率成像。

公开(公告)号：US20110293064A1

公开(公告)日：2011-12-01

申请号：US13147952

申请日：2010-07-06

申请人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Zhentian Wang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

发明人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Zhentian Wang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

IPC分类号： A61B6/03 ,  G01N23/201

CPC分类号： G01N23/04 ,  B82Y10/00 ,  G01N23/20075 ,  G21K2201/061 ,  G21K2207/005

摘要： An x-ray imaging technology, performing an x-ray dark-field CT imaging of an examined object using an imaging system which comprises an x-ray source, two absorbing gratings G1 and G2, an x-ray detector, a controller and a data processing unit, comprising the steps of: emitting x-rays to the examined object; enabling one of the two absorbing gratings G1 and G2 to perform phase stepping motion within at least one period range thereof; where in each phase stepping step, the detector receives the x-ray and converts it into an electric signal; wherein through the phase stepping of at least one period, the x-ray intensity at each pixel point on the detector is represented as an intensity curve; calculating a second moment of scattering angle distribution for each pixel, based on a contrast of the intensity curve at each pixel point on the detector and an intensity curve without presence of the examined object; taking images of the object at various angles, then obtaining an image with scattering information of the object in accordance with a CT reconstruction algorithm.

摘要翻译： 一种X射线成像技术，使用包括x射线源，两个吸收光栅G1和G2，x射线检测器，控制器和控制器的成像系统对检查对象进行X射线暗场CT成像 数据处理单元，包括以下步骤：向被检查对象发射X射线; 使得两个吸收光栅G1和G2中的一个能够在其至少一个周期范围内执行相位步进运动; 在每个相位步进步骤中，检测器接收x射线并将其转换为电信号; 其中通过至少一个周期的相位步进，将检测器上每个像素点处的x射线强度表示为强度曲线; 基于检测器上的每个像素点处的强度曲线的对比度和不存在检查对象的强度曲线，计算每个像素的散射角分布的第二时刻; 以各种角度拍摄对象的图像，然后根据CT重建算法获得具有对象的散射信息的图像。

公开(公告)号：US08036337B2

公开(公告)日：2011-10-11

申请号：US12238515

申请日：2008-09-26

申请人： Li Zhang ,  Zhiqiang Chen ,  Xuewu Wang ,  Haifeng Hu ,  Hongxin Wu ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yuxiang Xing ,  Hu Tang ,  Yumin Yi ,  Jinyu Zhang

发明人： Li Zhang ,  Zhiqiang Chen ,  Xuewu Wang ,  Haifeng Hu ,  Hongxin Wu ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yuxiang Xing ,  Hu Tang ,  Yumin Yi ,  Jinyu Zhang

IPC分类号： G01N23/04

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： 公开了一种用于双能CT成像的液体物品的安全检查方法和装置。 该方法包括以下步骤：通过CT扫描获得包括待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，或者通过DR图像设置，或者通过DR图像的自动分析设置。

公开(公告)号：US20110176144A1

公开(公告)日：2011-07-21

申请号：US12888414

申请日：2010-09-23

申请人： Zhiqiang Chen

发明人： Zhiqiang Chen

IPC分类号： G01B9/02

CPC分类号： G02F1/11 ,  G02F1/21 ,  H04B10/677 ,  H04L27/223

摘要： This invention provides a compact delay-line interferometer that can be used in Differential Phase Shift Keying (DPSK) and Differential Quardratic Phase Shift Keying (DQPSK) demodulators. The delay-line interferometer is based on polarization components including beam shifter, beam splitter and wave plates. The realized demodulators can be used as either discrete components or integrated with balanced detectors. Time delay generated in the interferometer can be controlled with a phase shifter, using either thermal, piezoelectric, mechanical of electrical means. This application claims priority to US Provisional Patent Application Ser. No. 61/238,687, filed Sep. 1, 2009, titled “Polarization Based Interferometer.” This application also claims priority to US Provisional Patent Application Ser. No. 61/295,766, filed Jan. 18, 2010, titled “Delay-Line-Interferometer for Integration with Balanced Receivers.”

摘要翻译： 本发明提供了可用于差分相移键控（DPSK）和差分相位相移键控（DQPSK）解调器的紧凑型延迟线干涉仪。 延迟线干涉仪基于偏振分量，包括光束移动器，分束器和波片。 实现的解调器可以用作分立元件或与平衡检波器集成。 在干涉仪中产生的时间延迟可以用移相器来控制，使用热，压电，机械的电气装置。 本申请要求美国临时专利申请 2009年9月1日提交的名称为“Polarization Based Interferometer”的第61 / 238,687号美国临时专利申请的优先权。 2010年1月18日提交的题为“Delay-Line-Interferometer for Integration with Balanced Receivers”的第61 / 295,766号。