专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US07672427B2 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US07672427B2
公开(公告)日：2010-03-02
申请号：US11545255
申请日：2006-10-10
申请人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
发明人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , A61B6/027
摘要： It is disclosed an imaging system comprising: radiation generating means including at least one radiation source for generating radiations; data acquiring means including an detector matrix faced the radiation source for obtaining projection data by receiving radiations penetrated through an object to be inspected; transporting means for making the object to be inspected between the radiation source and the detector matrix linearly moving relative to the radiation source and the detector matrix; and controlling and image processing means for controlling the radiation generating means, the data acquiring means and the transporting means, and for reconstructing an image of the object to be inspected from the projection data. The imaging system according to the present invention achieves a real stereoscopic radiography by using straight-line trajectory scan and reconstructing a tomographic or stereoscopic image through a straight-line filtered back-projection algorithm. The present imaging system has advantages of fast examination speed, no rotation, and out of large cone-angle problem in a circular-orbit cone-beam CT.
摘要翻译：公开了一种成像系统，包括：辐射发生装置，其包括用于产生辐射的至少一个辐射源; 数据获取装置，包括面向辐射源的检测器矩阵，用于通过接收穿过待检查对象的辐射来获得投影数据; 用于使所述物体在所述辐射源和所述检测器矩阵之间相对于所述辐射源和所述检测器矩阵线性移动的传送装置; 以及控制和图像处理装置，用于控制辐射发生装置，数据获取装置和传送装置，并用于从投影数据重建待检查对象的图像。根据本发明的成像系统通过使用直线轨迹扫描并通过直线过滤的反投影算法重建断层摄影或立体图像来实现真正的立体放射照相。本发明的成像系统在圆锥轨道锥形CT中具有检测速度快，无旋转和大锥角问题的优点。

82. 发明申请

US20080131312A1 Mobile electron beam radiation sterilizing apparatus 有权
标题翻译：手机电子束辐射灭菌装置
公开(公告)号：US20080131312A1
公开(公告)日：2008-06-05
申请号：US11811313
申请日：2007-06-08
申请人： Kejun Kang , Huayi Zhang , Zhiqiang Chen , Yuanjing Li , Chuanxiang Tang , Yaohong Liu , Huaibi Chen , Huaping Tang , Nan Jiang , Dongsheng Zhang , Yu He , Feng Gao , Weiqiang Guan , Jian Li , Yanfeng Cao
发明人： Kejun Kang , Huayi Zhang , Zhiqiang Chen , Yuanjing Li , Chuanxiang Tang , Yaohong Liu , Huaibi Chen , Huaping Tang , Nan Jiang , Dongsheng Zhang , Yu He , Feng Gao , Weiqiang Guan , Jian Li , Yanfeng Cao
IPC分类号： A61L2/00
CPC分类号： A61L2/087 , A61L2/24 , A61L2202/16 , A61L2202/24
摘要： The present invention discloses a mobile electron beam radiation sterilizing apparatus, comprising: a movable chassis vehicle (1); a cabinet body (2) installed on the chassis vehicle (1); an electron accelerator (6) which generates electron beam for articles to be radiation-processed; an accelerator control box (31), which controls operation of the accelerator, wherein the electron accelerator (6) is provided in the cabinet body. The invention has advantages as following: since the electron accelerator is provided in the cabinet body of the chassis vehicle, it has a small volume with flexible maneuverability, which can be transferred rapidly in a short time. In addition, the apparatus has no additional requirement of using environment, and does not need any additional construction. The invention can implement electron beam radiation for all kinds of documents and mails and achieve rapid and complete sterilization, reaching safety purpose. Further, there is no damage or residual radiation for the processed articles. Moreover, the apparatus has a high degree of automation assembly with easy operations and safety. Thus, it is suitable for chief departments at home and abroad.
摘要翻译：本发明公开了一种移动式电子束辐射灭菌装置，其特征在于，包括：可动底盘车辆（1）; 安装在底盘车辆（1）上的机壳体（2）; 电子加速器（6），其产生用于待辐射处理的物品的电子束; 加速器控制箱（31），其控制加速器的操作，其中电子加速器（6）设置在机壳主体中。本发明具有以下优点：由于电子加速器设置在底盘车厢的机壳体中，所以具有体积小，机动性灵活的特点，能够在短时间内迅速传递。此外，该设备不需要使用环境，并且不需要任何额外的结构。本发明可以实现各种文件和邮件的电子束辐射，实现快速，完整的灭菌，达到安全目的。此外，处理物品没有损坏或残留辐射。此外，该装置具有高度的自动化组装，操作和安全性容易。因此适用于国内外主要部门。

83. 发明申请

US20070116175A1 System and method for reconstructing image by using straight-line trajectory scan 有权
标题翻译：使用直线轨迹扫描重建图像的系统和方法
公开(公告)号：US20070116175A1
公开(公告)日：2007-05-24
申请号：US11546717
申请日：2006-10-12
申请人： Li Zhang , Hewei Gao , Zhiqiang Chen , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
发明人： Li Zhang , Hewei Gao , Zhiqiang Chen , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G01N23/046 , A61B6/032 , G01N2223/3303 , G01N2223/419 , G06T11/006 , G06T2211/421
摘要： It is disclosed a system and a method for reconstructing an image by using a straight-line trajectory scan to avoid image spatial resolution reduction due to interpolations in angular direction and detector direction during data rebinning. This system comprises: a projection data conversion section for converting projection data from straight-line trajectory scan into projection data under quasi-parallel-beam scan; a filtration section for obtaining filtered projection data by convoluting the projection data under quasi-parallel-beam scan with a predetermined convolutional kernel; and a back-projection section for reconstructing an image by back-projecting the filtered projection data with a weighting factor. By using the inventive system and method, the spatial resolution in the reconstructed image is improved, and the influence of data truncation on the reconstructed image is reduced. The present invention applies the filtration and back-projection mode, and thus has general advantages of the filtration and back projection, such as simplicity and efficiency. And it is easy to be parallelized and accelerated.
摘要翻译：公开了一种通过使用直线轨迹扫描来重建图像的系统和方法，以避免在数据重组期间由于在角度方向和检测器方向上的内插而导致的图像空间分辨率降低。该系统包括：投影数据转换部分，用于将投影数据从直线轨迹扫描转换成准并行束扫描的投影数据; 过滤部分，用于通过用预定的卷积核在准平行束扫描下卷积投影数据来获得经滤波的投影数据; 以及背投影部分，用于通过用加权因子反投影过滤的投影数据来重建图像。通过使用本发明的系统和方法，改善了重建图像中的空间分辨率，减少了数据截断对重建图像的影响。本发明应用过滤和反投影模式，因此具有过滤和反投影的一般优点，例如简单性和效率。并行并行加速很容易。

84. 发明申请

US20120288066A1 SCANNING DEVICE USING RADIATION BEAM FOR BACKSCATTER IMAGING AND METHOD THEREOF 有权
标题翻译：使用辐射光束进行背景扫描成像的扫描装置及其方法
公开(公告)号：US20120288066A1
公开(公告)日：2012-11-15
申请号：US13519305
申请日：2010-06-28
申请人： Kejun Kang , Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Yinong Liu , Wanlong Wu , Dong Lin , Le Tang , Chao Tu , Zongjun Shen , Guangwei Ding , Yingkang Jin , Xilei Luo , Shuo Cao
发明人： Kejun Kang , Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Yinong Liu , Wanlong Wu , Dong Lin , Le Tang , Chao Tu , Zongjun Shen , Guangwei Ding , Yingkang Jin , Xilei Luo , Shuo Cao
IPC分类号： G21K5/00
CPC分类号： G01N23/203 , G21K1/043
摘要： Disclosed is a scanning device using radiation beam for backscatter imaging. The scanning device includes a radiation source; a stationary shield plate and a rotary shield body positioned respectively between the radiation source and the subject to be scanned, wherein the stationary shield plate is fixed relative to the radiation source, and the rotary shield body is rotatable relative to the stationary shield plate. The ray passing area permitting the rays from the radiation source to pass through the stationary shield plate is provided on the stationary shield plate, and ray incidence area and ray exit area are respectively provided on the rotary shield body. During the process of the rotating and scanning of the rotary shield body, the ray passing area of the stationary shield plate intersects consecutively with the ray incidence area and the ray exit area of the rotary shield body to form scanning collimation holes. Further, a scanning method using radiation beam for backscatter imaging is also provided.
摘要翻译：公开了使用用于反向散射成像的辐射束的扫描装置。扫描装置包括辐射源; 分别位于辐射源和待扫描对象之间的固定屏蔽板和旋转屏蔽体，其中固定屏蔽板相对于辐射源固定，并且旋转屏蔽体可相对于固定屏蔽板旋转。在固定屏蔽板上设置允许来自辐射源的光线通过固定屏蔽板的射线通过面积，并且在旋转屏蔽体上分别设置射线入射区域和射出口区域。在旋转屏蔽体的旋转和扫描过程中，固定屏蔽板的射线通过面积与旋转屏蔽体的射线入射面积和射线出射面积连续相交，形成扫描准直孔。此外，还提供了使用用于反向散射成像的辐射束的扫描方法。

85. 发明授权

US07424089B2 System and method for reconstructing image by using straight-line trajectory scan 有权
标题翻译：使用直线轨迹扫描重建图像的系统和方法
公开(公告)号：US07424089B2
公开(公告)日：2008-09-09
申请号：US11546717
申请日：2006-10-12
申请人： Li Zhang , Hewei Gao , Zhiqiang Chen , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
发明人： Li Zhang , Hewei Gao , Zhiqiang Chen , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
IPC分类号： H05G1/60
CPC分类号： G01N23/046 , A61B6/032 , G01N2223/3303 , G01N2223/419 , G06T11/006 , G06T2211/421
摘要： It is disclosed a system and a method for reconstructing an image by using a straight-line trajectory scan to avoid image spatial resolution reduction due to interpolations in angular direction and detector direction during data rebinning. This system comprises: a projection data conversion section for converting projection data from straight-line trajectory scan into projection data under quasi-parallel-beam scan; a filtration section for obtaining filtered projection data by convoluting the projection data under quasi-parallel-beam scan with a predetermined convolutional kernel; and a back-projection section for reconstructing an image by back-projecting the filtered projection data with a weighting factor. By using the inventive system and method, the spatial resolution in the reconstructed image is improved, and the influence of data truncation on the reconstructed image is reduced. The present invention applies the filtration and back-projection mode, and thus has general advantages of the filtration and back projection, such as simplicity and efficiency. And it is easy to be parallelized and accelerated.
摘要翻译：公开了一种通过使用直线轨迹扫描来重建图像的系统和方法，以避免在数据重组期间由于在角度方向和检测器方向上的内插而导致的图像空间分辨率降低。该系统包括：投影数据转换部分，用于将投影数据从直线轨迹扫描转换成准并行束扫描的投影数据; 过滤部分，用于通过用预定的卷积核在准平行束扫描下卷积投影数据来获得经滤波的投影数据; 以及背投影部分，用于通过用加权因子反投影过滤的投影数据来重建图像。通过使用本发明的系统和方法，改善了重建图像中的空间分辨率，减少了数据截断对重建图像的影响。本发明应用过滤和反投影模式，因此具有过滤和反投影的一般优点，例如简单性和效率。并行并行加速很容易。

86. 发明申请

US20120140874A1 Computer Tomography Imaging Device and Method 有权
标题翻译：计算机断层扫描成像装置及方法
公开(公告)号：US20120140874A1
公开(公告)日：2012-06-07
申请号：US13322696
申请日：2009-12-30
申请人： Liang Li , Zhiqiang Chen , Li Zhang , Kejun Kang , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao
发明人： Liang Li , Zhiqiang Chen , Li Zhang , Kejun Kang , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao
IPC分类号： A61B6/03 , A61B6/08
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4452 , A61B6/469 , G06T11/006 , G06T2211/416 , G06T2211/421 , G06T2211/424
摘要： The present invention discloses a method for performing CT imaging on a region of interest of an object under examination, comprising: acquiring the CT projection data of the region of interest; acquiring the CT projection data of region B; selecting a group of PI line segments covering the region of interest, and calculating the reconstruction image value for each PI line segment in the group; and combining the reconstruction image values in all the PI line segments to obtain the image of the region of interest. The present invention further discloses a CT imaging device using this method and a data processor therein. Since the 2D/3D slice image of the region of interest can be exactly reconstructed and obtained as long as the X-ray beam covers the region of interest and the region B, it is possible to use a small-sized detector to perform CT imaging on the region of interest at any position of a large-sized object, which reduces to a great extent the radiation dose of the X-ray during the CT scanning.
摘要翻译：本发明公开了一种对被检查物体的感兴趣区域进行CT成像的方法，包括：获取感兴趣区域的CT投影数据; 获取区域B的CT投影数据; 选择覆盖感兴趣区域的一组PI线段，并计算组中每个PI线段的重建图像值; 并且将所有PI线段中的重建图像值组合以获得感兴趣区域的图像。本发明还公开了一种使用该方法的CT成像装置及其中的数据处理器。由于只要X射线束覆盖感兴趣区域和区域B，就可以精确地重构和获得感兴趣区域的2D / 3D切片图像，因此可以使用小尺寸检测器来执行CT成像在大尺寸物体的任何位置处的感兴趣区域，其在CT扫描期间在很大程度上降低X射线的辐射剂量。

87. 发明申请

US20120106832A1 METHOD AND APPARATUS FOR CT IMAGE RECONSTRUCTION 有权
标题翻译： CT图像重建方法与装置
公开(公告)号：US20120106832A1
公开(公告)日：2012-05-03
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
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。

88. 发明授权

US08066102B2 Lifting apparatus and safety inspection system 有权
标题翻译：起重设备和安全检查系统
公开(公告)号：US08066102B2
公开(公告)日：2011-11-29
申请号：US11525697
申请日：2006-09-22
申请人： Xilei Luo , Kejun Kang , Yinong Liu , Yuanjing Li , Zhiqiang Chen , Wanlong Wu , Yulan Li , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
发明人： Xilei Luo , Kejun Kang , Yinong Liu , Yuanjing Li , Zhiqiang Chen , Wanlong Wu , Yulan Li , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
IPC分类号： B66B9/02 , H01L21/68 , G21K5/10
CPC分类号： G01N23/046 , G01N2223/419
摘要： A lifting apparatus includes a vertical guide device, a turntable device which is movable along the vertical guide device upwards or downwards, and a first driving device which drives the turntable device moving in an upward and downward direction guided by the vertical guide device. The turntable device includes a bracket which is slidably engaged with the vertical guide device and projects perpendicularly toward a side of the vertical guide device, a turntable which is rotatably provided on the bracket, and a second driving device which rotates the turntable on the bracket.
摘要翻译：提升装置包括垂直导向装置，可沿着垂直导向装置向上或向下移动的转台装置，以及第一驱动装置，其驱动转盘装置沿垂直导向装置引导的向上和向下方向移动。转盘装置包括：托架，其与所述垂直引导装置可滑动地接合并且垂直地朝向所述垂直引导装置的侧面突出;转台，其可旋转地设置在所述支架上;以及第二驱动装置，其使所述转盘旋转在所述支架上。

89. 发明授权

US08039803B2 Phase contrast imaging method and apparatus 有权
标题翻译：相位成像方法和装置
公开(公告)号：US08039803B2
公开(公告)日：2011-10-18
申请号：US12920161
申请日：2009-02-16
申请人： Kejun Kang , Zhiqiang Chen , Li Zhang , Yingxin Wang , Ziran Zhao , Yuanjing Li , Yinong Liu , Zhifeng Huang , Yuxiang Xing
发明人： Kejun Kang , Zhiqiang Chen , Li Zhang , Yingxin Wang , Ziran Zhao , Yuanjing Li , Yinong Liu , Zhifeng Huang , Yuxiang Xing
IPC分类号： G01J5/02
CPC分类号： G01N21/3581
摘要： A method for phase contrast imaging comprises: illuminating an object by terahertz radiation such that the terahertz radiation interacts with the object; illuminating a diffraction grating by the terahertz radiation that has interacted with the object; translating the diffraction grating along the direction of the grating wave vector, to measure, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and retrieving a phase contrast image of the object from the intensity distributions. An apparatus for phase contrast imaging is also provided.
摘要翻译：一种用于相位对比成像的方法包括：用太赫兹辐射照射物体，使得太赫兹辐射与物体相互作用; 用与物体相互作用的太赫兹辐射照射衍射光栅; 沿着光栅波矢的方向平移衍射光栅，以测量每个不同的光栅位置，在衍射场中与物体和光栅相互作用的太赫兹辐射的强度分布; 以及从所述强度分布中检索所述对象的相位对比图像。还提供了一种用于相位成像的装置。

90. 发明申请

US20090129544A1 METHOD AND APPARATUS FOR SUBSTANCE IDENTIFICATION 有权
标题翻译：物质识别的方法和装置
公开(公告)号：US20090129544A1
公开(公告)日：2009-05-21
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： G01N23/04
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式