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1. 发明授权

EP2749905B1 CT apparatus without gantry 有权
公开(公告)号：EP2749905B1
公开(公告)日：2020-11-11
申请号：EP13198602.8
申请日：2013-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhang, Jinyu , Tang, Hu , Duan, Zhanjun , Zhang, Li , Zhao, Ziran
IPC分类号： G01V5/00 , G01T1/29

2. 发明公开

EP2990834A1 LOW-ANGLE SELF-SWINGING, LARGE-SCALE MULTI-SLICE SPIRAL COMPUTED TOMOGRAPHY APPARATUS AND INSPECTION METHOD 有权
标题翻译： DEVICE FOR FLACHWINKLIGEN，自激振荡，大平面螺旋形状的多个盘形计算机断层扫描和程序
公开(公告)号：EP2990834A1
公开(公告)日：2016-03-02
申请号：EP15182644.3
申请日：2015-08-27
申请人： Tsinghua University , Nuctech Company Limited
发明人： Kang, Kejun , Chen, Zhiqiang , Li, Yuanjing , Zhang, Li , Zhao, Ziran , Liu, Yaohong , Gu, Jianping , Li, Liang , Xing, Yuxiang
IPC分类号： G01V5/00
CPC分类号： G01N23/046 , G01V5/005
摘要： The present disclosure provides a low-angle self-swinging type computed tomography (CT) apparatus, which is provided with an X-ray accelerator and a plurality of rows of detectors and is configured to include a slip ring, such that the slip ring with the accelerator and the detectors thereon is capable of performing a single-pendulum reciprocating movement while an objected to be inspected passes through the slip ring, a three dimension CT image of the object is displayed, thereby achieving accurate inspection for large-scale objects, such as van containers.
摘要翻译：本发明提供了计算机断层摄影（CT）装置的低角度自摆动式，所有这一切都在X射线加速器设置有与检测器的行中的多个，并且被配置为包括一个滑环，审查做了滑环与加速器和检测器在其上能够执行单摆往复运动的同时在反对被检查穿过滑环，所述对象的三维CT图像被显示，从而实现为大型物体准确的检查，搜索如面包车容器。

3. 发明公开

EP2889609A3 Pesticide residue detection method 有权
标题翻译：农药残留的检测方法
公开(公告)号：EP2889609A3
公开(公告)日：2015-08-12
申请号：EP14199417.8
申请日：2014-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhang, Li , Jiang, Li , Zhang, Jianhong , Wang, Hongqiu , Yi, Yumin
IPC分类号： G01N21/65
CPC分类号： G01N21/65 , G01N21/658
摘要： A pesticide residue detection method (10) is disclosed, comprising the steps: (a) irradiating a sample to be detected by an exciting light and collecting a Raman scattered light from the sample (300); (b) acquiring a Raman spectrum of the sample from the collected Raman scattered light (400); and (c) comparing the Raman spectrum with reference Raman spectra for known pesticides in a reference Raman library to determine composition and concentration of the pesticide residue in the sample (500). The method (10) may achieve effective, convenient and accurate inspection of the pesticide residue in foods, in particular suitable for rapid detection.

4. 发明公开

EP2889609A2 Pesticide residue detection method 有权
标题翻译： Pestizidrückstandsnachweisverfahren
公开(公告)号：EP2889609A2
公开(公告)日：2015-07-01
申请号：EP14199417.8
申请日：2014-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhang, Li , Jiang, Li , Zhang, Jianhong , Wang, Hongqiu , Yi, Yumin
IPC分类号： G01N21/65
CPC分类号： G01N21/65 , G01N21/658
摘要： A pesticide residue detection method (10) is disclosed, comprising the steps: (a) irradiating a sample to be detected by an exciting light and collecting a Raman scattered light from the sample (300); (b) acquiring a Raman spectrum of the sample from the collected Raman scattered light (400); and (c) comparing the Raman spectrum with reference Raman spectra for known pesticides in a reference Raman library to determine composition and concentration of the pesticide residue in the sample (500). The method (10) may achieve effective, convenient and accurate inspection of the pesticide residue in foods, in particular suitable for rapid detection.
摘要翻译：公开了一种农药残留检测方法（10），包括以下步骤：（a）通过激发光照射待检测的样品并收集来自样品（300）的拉曼散射光; （b）从收集的拉曼散射光（400）获取样品的拉曼光谱; 和（c）将参考拉曼文库中已知农药的拉曼光谱与参考拉曼光谱进行比较，以确定样品中农药残留的组成和浓度（500）。方法（10）可以对食品中的农药残留进行有效，方便，准确的检测，特别适合快速检测。

5. 发明公开

EP2874123A2 Method and apparatus for rendering CT image data 审中-公开
标题翻译：对于CT图像数据的表示方法和装置
公开(公告)号：EP2874123A2
公开(公告)日：2015-05-20
申请号：EP14193139.4
申请日：2014-11-14
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhao, Ziran , Zhang, Li , Chen, Zhiqiang , Wang, Shuo , Gu, Jianping , Sun, Yunda
IPC分类号： G06T15/08
CPC分类号： G06T1/0007 , G06T1/20 , G06T3/403 , G06T11/001 , G06T11/008 , G06T15/04 , G06T15/06 , G06T15/08 , G06T15/205 , G06T15/405 , G06T15/60 , G06T15/80 , G06T2200/04 , G06T2200/08 , G06T2200/28 , G06T2207/10072 , G06T2207/10081 , G06T2210/04 , G06T2215/12 , G06T2219/2008
摘要： The present disclosure provides a method for rendering of CT image data. The method includes acquiring 2D image data of a background and 2D image data of a target; rendering the 2D image data of the target into a 3D image of the target to obtain a first hit position of a ray; rendering the 2D image data of the background into a 3D image of the background; adjusting the 3D image of the background based on the first hit position; and synthetically rendering the 3D image of the background and the 3D image of the target. The present disclosure also provides apparatus for implementing the method.

6. 发明公开

EP2843623A3 X-ray dual-energy CT reconstruction method 有权
标题翻译： X射线双能量CT重建方法
公开(公告)号：EP2843623A3
公开(公告)日：2015-04-22
申请号：EP14177280.6
申请日：2014-07-16
申请人： Tsinghua University , Nuctech Company Limited
发明人： Yuxiang, Xing , Shen, Le , Zhang, Li , Chen, Zhiqiang , Liang,Li
IPC分类号： G06T11/00
CPC分类号： G01N23/046 , G06T11/006 , G06T2207/10081 , G06T2207/20182 , G06T2207/30004 , G06T2211/408 , G06T2211/424
摘要： The present disclosure relates to a self-prior information based X-ray dual-energy CT reconstruction method, which can utilize information inherent in data to provide a prior model, thereby obtaining a reconstructed image with a high quality. The X-ray dual-energy CT reconstruction method according to the present disclosure comprises: (a) rating an energy spectrum and establishing a dual-energy lookup table; (b) collecting high-energy data p H and low-energy data p L of a dual-energy CT imaging system using a detector of the dual-energy CT imaging system; (c) obtaining projection images R 1 and R 2 of scaled images r 1 and r 2 according to the obtained high-energy data p H and low-energy data p L ; (d) reconstructing the scaled image r 2 using a first piece-wise smooth constraint condition and thereby obtaining an electron density image; and (e) reconstructing the scaled image r 1 using a second piece-wise smooth constraint condition and thereby obtaining an equivalent atomic number image. In the present disclosure, the noise in the dual-energy reconstructed image can be effectively prohibited while keeping the resolution by effectively using information inherent in data.
摘要翻译：本发明涉及一种基于自身先验信息的X射线双能量CT重建方法，该方法可以利用数据中固有的信息来提供先验模型，从而获得高质量的重建图像。根据本公开的X射线双能量CT重建方法包括：（a）对能谱进行评级并建立双能量查找表; （b）使用双能CT成像系统的检测器收集双能CT成像系统的高能数据pH和低能数据pL; （c）根据获得的高能数据pH和低能量数据pL获得缩放图像r1和r2的投影图像R1和R2; （d）使用第一分段平滑约束条件重建缩放图像r2，从而获得电子密度图像; （e）使用第二分段平滑约束条件重建缩放图像r1，从而获得等价原子序数图像。在本公开中，通过有效地使用数据中固有的信息，可以在保持分辨率的同时有效地禁止双能量重构图像中的噪声。

7. 发明公开

EP2843623A2 X-ray dual-energy CT reconstruction method 有权
标题翻译：伦琴 - 双能-CT-Rekonstruktionsverfahren
公开(公告)号：EP2843623A2
公开(公告)日：2015-03-04
申请号：EP14177280.6
申请日：2014-07-16
申请人： Tsinghua University , Nuctech Company Limited
发明人： Yuxiang, Xing , Shen, Le , Zhang, Li , Chen, Zhiqiang , Liang,Li
IPC分类号： G06T11/00
CPC分类号： G01N23/046 , G06T11/006 , G06T2207/10081 , G06T2207/20182 , G06T2207/30004 , G06T2211/408 , G06T2211/424
摘要： The present disclosure relates to a self-prior information based X-ray dual-energy CT reconstruction method, which can utilize information inherent in data to provide a prior model, thereby obtaining a reconstructed image with a high quality. The X-ray dual-energy CT reconstruction method according to the present disclosure comprises: (a) rating an energy spectrum and establishing a dual-energy lookup table; (b) collecting high-energy data p H and low-energy data p L of a dual-energy CT imaging system using a detector of the dual-energy CT imaging system; (c) obtaining projection images R 1 and R 2 of scaled images r 1 and r 2 according to the obtained high-energy data p H and low-energy data p L ; (d) reconstructing the scaled image r 2 using a first piece-wise smooth constraint condition and thereby obtaining an electron density image; and (e) reconstructing the scaled image r 1 using a second piece-wise smooth constraint condition and thereby obtaining an equivalent atomic number image. In the present disclosure, the noise in the dual-energy reconstructed image can be effectively prohibited while keeping the resolution by effectively using information inherent in data.
摘要翻译：本发明涉及一种基于自我先验信息的X射线双能CT重建方法，其可以利用数据中固有的信息来提供先验模型，从而获得高质量的重建图像。根据本公开的X射线双能CT重建方法包括：（a）评估能谱并建立双能量查找表; （b）使用双能CT成像系统的检测器收集双能CT成像系统的高能数据p H和低能数据p L; （c）根据获得的高能量数据p H和低能量数据p L获得缩放图像r 1和r 2的投影图像R 1和R 2; （d）使用第一分段平滑约束条件重建缩放图像r 2，从而获得电子密度图像; 和（e）使用第二分段平滑约束条件重建缩放图像r 1，从而获得等效的原子序数图像。在本公开中，可以有效地禁止双能量重构图像中的噪声，同时通过有效地使用数据中固有的信息来保持分辨率。

8. 发明公开

EP2750077A3 Object detection methods, display methods and apparatuses 有权
标题翻译：对象检测方法，显示方法和装置
公开(公告)号：EP2750077A3
公开(公告)日：2014-12-17
申请号：EP13198188.8
申请日：2013-12-18
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhang, Li , Chen, Zhiqiang , Zhao, Ziran , Li, Qiang , Gu, Jianping , Sun, Yunda
IPC分类号： G06K9/00
CPC分类号： G06T7/0004 , G01V5/005 , G06K9/00201 , G06T7/0002 , G06T15/08 , G06T2200/04 , G06T2207/10116 , G06T2207/30112
摘要： Disclosed are object detection method, display methods and apparatuses. The method includes obtaining slice data of inspected luggage in the CT system; generating 3D volume data of objects in the luggage from the slice data; for each object, determining a semantic description including at least a quantifier description of the object based on the 3D volume data; and upon reception of a user selection of an object, presenting the semantic description of the selected object while displaying a 3D image of the object. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.
摘要翻译：公开了物体检测方法，显示方法和装置。该方法包括获取CT系统中被检查行李的切片数据; 根据切片数据生成行李中的物体的3D体数据; 针对每个对象，基于所述3D体数据来确定包括所述对象的至少一个量词描述的语义描述; 并且在接收到对象的用户选择时，在显示对象的3D图像的同时呈现所选对象的语义描述。上述方案能够较为准确地为被检行李中的物体建立三维模型，为后续的形状特征提取和安全检查提供了更好的依据，并减少了遗漏因素。

9. 发明公开

EP2749909A3 Human body security inspection apparatus and method 审中-公开
标题翻译：审查用于人体的装置和方法
公开(公告)号：EP2749909A3
公开(公告)日：2014-09-03
申请号：EP13198339.7
申请日：2013-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Chen, Zhiqiang , Zhao, Ziran , Wu, Wanlong , Li, Yuanjing , Shen, Zongjun , Zhang, Li , Liu, Yinong , Cui, Jin , Jin, Yingkang , Li, Liang , Xing, Yuxiang , Xiao, Yongshun
IPC分类号： G01V3/12 , G01V8/00
CPC分类号： G06K9/00375 , G01V3/12 , G01V8/005 , G06K9/209 , H04N7/18
摘要： The present invention discloses a human body security inspection apparatus and a corresponding method. Specifically, the apparatus comprises: a human body security inspection device (1), configured to scan the human to be inspected (2) in order to inspect whether the human to be inspected (2) carries prohibited articles; a KINECT sensor (3), configured to real-timely acquire information about the human to be inspected (2) so that the human body security inspection device (1) is capable of real-timely acquiring the information of the human to be inspected (2) by means of the KINECT sensor (3), so as to determine whether the information conforms to requirements of the human body security inspection device (1); and a data processing device (4), configured to communicate with the human body security inspection device (1) and the KINECT sensor (3), in order to real-timely analyse and process the information of the human to be inspected (2).

10. 发明公开

EP2713340A2 Methods and devices for locating an object in CT imaging 有权
标题翻译：方法和装置用于在计算机断层摄影中定位对象
公开(公告)号：EP2713340A2
公开(公告)日：2014-04-02
申请号：EP13186311.0
申请日：2013-09-27
申请人： Tsinghua University , Nuctech Company Limited
发明人： Li, Liang , Zhang, Li , Chen, Zhiqiang , Zhao, Ziran , Xing, Yuxiang , Xiao, Yongshun , Wang, Qingli
IPC分类号： G06T11/00 , G06T7/00
CPC分类号： G06T7/004 , A61B6/4085 , A61B6/466 , A61B6/469 , A61B6/5258 , G06T7/0012 , G06T7/55 , G06T7/70 , G06T11/006 , G06T2211/421 , G06T2211/436 , G16H40/63
摘要： The present disclosure provides methods and devices for locating a plurality of interested objects in CT imaging. Location of the interested objects in the three-dimensional space can be determined by using three projection images that are substantially perpendicular to each other. The method can rapidly locate interested objects in a CT image without pre-reconstruction of the CT image even if there are a plurality of interested objects in the field of view. The algorithm does not involve interactive steps. The method is rapid and effective, and thus applicable to industrial applications.

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