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41. 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。

42. 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。

43. 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。

44. 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。

45. 发明申请

US20070062253A1 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：US20070062253A1
公开(公告)日：2007-03-22
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： G01N33/497
CPC分类号： G01N23/046 , G01N2223/419
摘要： The present invention discloses a lifting apparatus, comprising: 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. Wherein said turntable device comprises: 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. The present invention further discloses a safety inspection system comprising the lifting apparatus. Compared with prior art, the present invention combines a rotating mechanism and a lifting mechanism as a single apparatus, thus, realizing the self rotation and elevation of the objects to be detected. Thus the present invention has the beneficial features, such as high movement precision, high transmission efficiency, low friction resistance and reduced noise etc.
摘要翻译：本发明公开了一种提升装置，包括：垂直导向装置; 可沿着垂直引导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引导装置引导的上下方向移动。其中所述转盘装置包括：支架，其与所述垂直引导装置可滑动地接合并垂直于所述垂直引导装置的一侧突出; 可旋转地设置在支架上的转盘; 以及使支架上的转盘旋转的第二驱动装置。本发明还公开了一种包括提升装置的安全检查系统。与现有技术相比，本发明将旋转机构和提升机构组合为单个装置，从而实现被检测物体的自转和升高。因此，本发明具有移动精度高，传动效率高，摩擦阻力低，噪音小等优点。

46. 发明授权

US08731268B2 CT device and method based on motion compensation 有权
标题翻译：基于运动补偿的CT装置和方法
公开(公告)号：US08731268B2
公开(公告)日：2014-05-20
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。

47. 发明申请

US20080232541A1 CT SCAN SECURITY CHECK DEVICE AND METHOD 审中-公开
标题翻译： CT扫描安全检查装置和方法
公开(公告)号：US20080232541A1
公开(公告)日：2008-09-25
申请号：US12052232
申请日：2008-03-20
申请人： Kejun Kang , Zhiqiang Chen , Yuanjing Li , Yulan Li , Li Zhang , Yinong Liu , Ziran Zhao , Wanlong Wu , Hailin Wang , Xilei Luo , Bin Sang , Shuo Cao
发明人： Kejun Kang , Zhiqiang Chen , Yuanjing Li , Yulan Li , Li Zhang , Yinong Liu , Ziran Zhao , Wanlong Wu , Hailin Wang , Xilei Luo , Bin Sang , Shuo Cao
IPC分类号： H05G1/60 , G01N23/00
CPC分类号： G01V5/005
摘要： A check process may be performed without rotation of a radiation source or detector. A CT scan security check device may include a radiation source and a detector forming a radiation detection area, a conveyer mechanism conveying an article along a path, and a multidimensional movement mechanism causing a relative displacement between the article and the radiation detection area in a vertical direction and causing the article to rotate about a vertical axis. A CT scan security check method may include: 1) displacing the article relative to the radiation detection area in the vertical direction; 2) rotating the article; 3) during the checked article passing through the radiation detection area, obtaining data regarding a radiation ray that passes through the article; and 4) transmitting the data for a CT arithmetic reconstruction.
摘要翻译：可以在不旋转辐射源或检测器的情况下执行检查过程。 CT扫描安全检查装置可以包括辐射源和形成放射线检测区域的检测器，沿着路径传送物品的输送机构以及在垂直方向上引起物品和辐射检测区域之间的相对位移的多维运动机构方向并使制品围绕垂直轴旋转。 CT扫描安全检查方法可以包括：1）相对于垂直方向上的辐射检测区域移动物品; 2）旋转物品; 3）在通过辐射检测区域的被检查物品期间，获得关于穿过物品的辐射线的数据; 和4）发送用于CT算术重建的数据。

48. 发明申请

US20070075073A1 Shielding door device for radiation inspection system 有权
标题翻译：用于辐射检测系统的屏蔽门装置
公开(公告)号：US20070075073A1
公开(公告)日：2007-04-05
申请号：US11523779
申请日：2006-09-19
申请人： Zhiqiang Chen , Yuanjing Li , Yinong Liu , Haifeng Hu , Wanlong Wu , Yulan Li , Xilei Luo , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
发明人： Zhiqiang Chen , Yuanjing Li , Yinong Liu , Haifeng Hu , Wanlong Wu , Yulan Li , Xilei Luo , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
IPC分类号： H05B6/76
CPC分类号： E06B5/18 , E06B3/42 , G21F7/005 , G21Y2002/207 , G21Y2002/501 , G21Y2004/30
摘要： The present invention relates to a radiation inspection system discloses a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. With the above configuration, the present invention is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.
摘要翻译：辐射检查系统技术领域本发明涉及一种辐射检查系统，该辐射检查系统公开了一种用于辐射检查系统的屏蔽门装置，包括门体，位于门体两侧的两个导轨，齿条，齿轮和马达。两个引导件固定在框架的上表面上，门体通过轴承可移动地连接到两个引导件。机架固定在门体的底部并与齿轮啮合。齿轮与固定在框架的下表面上的马达的轴联接。利用上述结构，本发明在辐射检测系统的自动完全屏蔽和无干扰的情况下是有利的。此外，可以智能地控制屏蔽门，从而可以防止意外的辐射泄漏。

49. 发明授权

US07855352B2 Shielding door device for radiation inspection system 有权
标题翻译：用于辐射检测系统的屏蔽门装置
公开(公告)号：US07855352B2
公开(公告)日：2010-12-21
申请号：US11523779
申请日：2006-09-19
申请人： Zhiqiang Chen , Yuanjing Li , Yinong Liu , Haifeng Hu , Wanlong Wu , Yulan Li , Xilei Luo , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
发明人： Zhiqiang Chen , Yuanjing Li , Yinong Liu , Haifeng Hu , Wanlong Wu , Yulan Li , Xilei Luo , Li Zhang , Ziran Zhao , Bin Sang , Hailin Wang
IPC分类号： H05B6/64
CPC分类号： E06B5/18 , E06B3/42 , G21F7/005 , G21Y2002/207 , G21Y2002/501 , G21Y2004/30
摘要： A radiation inspection system includes a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. This configuration is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.
摘要翻译：辐射检查系统包括用于辐射检查系统的屏蔽门装置，包括门体，位于门体的两个相对侧上的两个引导件，齿条，齿轮和马达。两个引导件固定在框架的上表面上，门体通过轴承可移动地连接到两个引导件。机架固定在门体的底部并与齿轮啮合。齿轮与固定在框架的下表面上的马达的轴联接。这种配置在辐射检测系统的自动完全屏蔽中不受干扰是有利的。此外，可以智能地控制屏蔽门，从而可以防止意外的辐射泄漏。

50. 发明申请

US20060133566A1 Method and apparatus for liquid safety-detection by backscatter with a radiation source 有权
标题翻译：用辐射源通过后向散射进行液体安全检测的方法和装置
公开(公告)号：US20060133566A1
公开(公告)日：2006-06-22
申请号：US11285395
申请日：2005-11-23
申请人： Yulan Li , Haifeng Hu , Yinong Liu , Zhiqiang Chen , Kejun Kang , Li Zhang , Wanlong Wu , Yuanjing Li , Yi Wang , Wenjun He , Mingrui Qi
发明人： Yulan Li , Haifeng Hu , Yinong Liu , Zhiqiang Chen , Kejun Kang , Li Zhang , Wanlong Wu , Yuanjing Li , Yi Wang , Wenjun He , Mingrui Qi
IPC分类号： G01N23/04
CPC分类号： G01N23/20066 , G01N23/203 , G01N2223/637 , G01V5/0025
摘要： A method and an apparatus for liquid safety-detection by backscatter with a radiation source relate to a radiation detecting technology field. The invention comprises using a radiation source, a collimator, a detector, a data collector and a computer data processor, and has the main steps of: 1) a liquid article to be detected being placed onto a rotatable platform; 2) the ray emitted from the radiation source causing Compton scattering at the surface of the liquid after passing through the package layer of the liquid article; 3) the scattering photons being received by the detector after passing the collimator; 4) the detector transmitting the received data to the data collector; and 5) the data collector transmitting the amplified and shaped data to the computer data processor, which processes the data to obtain the liquid density of the detected article, then compares the result with the densities of dangerous articles in a current database, and gives warning if finding that the density of the detected article is consistent with that of a dangerous article. Comparing to the prior art, the invention has a convenient use, a rapid and accurate detection, a strong anti-interference, a high use safety and reliability, and an easy protection.
摘要翻译：用于通过具有辐射源的后向散射进行液体安全检测的方法和装置涉及辐射检测技术领域。本发明包括使用辐射源，准直仪，检测器，数据采集器和计算机数据处理器，并且具有以下主要步骤：1）待检测的液体物品被放置在可旋转平台上; 2）从辐射源发出的射线，在液体物品的包装层穿过液体表面后会引起康普顿散射; 3）散射光子在通过准直仪之后被检测器接收; 4）检测器将接收的数据发送到数据采集器; 5）数据收集器将放大和成形数据发送到计算机数据处理器，处理数据以获得检测到的物品的液体密度，然后将结果与当前数据库中的危险物品的密度进行比较，并给出警告如果发现检测到的物品的密度与危险物品的密度一致。与现有技术相比，本发明方便使用，检测快速准确，抗干扰性强，使用安全可靠，易于保护。

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