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61. 发明授权

US10955572B2 Data processing method and device 有权
公开(公告)号：US10955572B2
公开(公告)日：2021-03-23
申请号：US16137547
申请日：2018-09-21
申请人： Tsinghua University , Nuctech Company Limited
发明人： Li Zhang , Zhiqiang Chen , Sen Wang , Xiaofei Xu , Yuanjing Li , Xin Jin
IPC分类号： G01T7/00 , G01T1/16 , G01T1/36
摘要： The present disclosure relates to a data processing method and device. The data processing method comprises steps of: performing detector response calibration based on a detector response obtained by an incidence of rays with known energy into a detector to obtain a detector response model; obtaining a photon counting model of the detector between incident energy spectrum data of the detector and detected energy spectrum data of the detector based on the detector response model; and performing a deconvolution operation on counts of photons in respective energy regions in the detected energy spectrum data of the detector based on the photon counting model of the detector, to obtain real counts of photons in respective energy regions in the incident energy spectrum data of the detector.

62. 发明授权

US10946820B2 In-vehicle detection system and power supply system and power supply controller 有权
公开(公告)号：US10946820B2
公开(公告)日：2021-03-16
申请号：US15609013
申请日：2017-05-31
申请人： NUCTECH COMPANY LIMITED , Tsinghua University
发明人： Jianmin Li , Hao Yu , Zhiqiang Chen , Yuanjing Li , Yulan Li , Li Zhang , Jingyu Gu , Dongyu Wang
IPC分类号： B60R16/033 , H02J3/14 , H01M10/052 , H01M10/42 , H02J7/00
摘要： The present disclosure discloses an in-vehicle detection system and power supply system and power supply controller, which relates to the power supply control field. The power supply system comprises a low-power generator; a battery pack for supplying power to the in-vehicle detection system; a charger electrically connected to the low-power generator and the battery pack, respectively; and a power supply controller electrically connected to the battery pack and the low-power generator, respectively.

63. 发明授权

US10895660B2 Vehicle-mounted type back scattering inspection system 有权
公开(公告)号：US10895660B2
公开(公告)日：2021-01-19
申请号：US16234630
申请日：2018-12-28
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Hao Yu , Ying Li , Weizhen Wang , Quanwei Song , Dongyu Wang , Haojie Chi , Jianmin Li , Yulan Li , Chunguang Zong , Zhiqiang Chen , Yuanjing Li , Li Zhang
IPC分类号： G01N23/203 , G01V5/00
摘要： The present disclosure discloses a vehicle-mounted type back scattering inspection system. The back scattering imaging device has a vehicle-mounted working state and a ground working state, and in the vehicle-mounted working state, the back scattering imaging device performs inspection work in a carriage; in the ground working state, the back scattering imaging device performs the inspection work on the ground at the outside of the carriage; and the back scattering imaging device is separately arranged relative to the carriage and is movable between the carriage and the ground to switch between the vehicle-mounted working state and the ground working state.

64. 发明授权

US10784008B2 Shield cover for radiation source machine and security inspection apparatus 有权
公开(公告)号：US10784008B2
公开(公告)日：2020-09-22
申请号：US16166136
申请日：2018-10-21
申请人： Nuctech Company Limited , Tsinghua University
发明人： Long Zhang , Li Zhang , Mingzhi Hong , Jinning Liang
IPC分类号： G21F5/02 , H05G1/04 , G21F3/00
摘要： The present disclosure relates to a shield cover for a radiation source machine and a security inspection apparatus. The shield cover for a radiation source machine comprises: a frame body provided with a receiving chamber for receiving the radiation source machine, an end opening and an ray exit through which rays are emitted out from the radiation source machine; an end cover disposed at the end opening of the frame body and provided with a sealed chamber communicating with the receiving chamber; and a connecting member disposed between the end cover and the frame body and provided with an opening for communicating the sealed chamber of the end cover with the receiving chamber of the frame body, and the end cover being movably connected to the frame body by the connecting member such that a distance of the end cover from the end opening of the frame body is adjustable.

65. 发明授权

US10036707B2 Gem identification method and apparatus 有权
公开(公告)号：US10036707B2
公开(公告)日：2018-07-31
申请号：US14576752
申请日：2014-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Ziran Zhao , Li Zhang , Yingying Geng , Hongqiu Wang , Yumin Yi
IPC分类号： G01N21/65 , G01J3/28 , G01N21/87 , G01J3/44
CPC分类号： G01N21/65 , G01J3/28 , G01J3/44 , G01J3/4412 , G01N21/87 , G01N2201/06113 , G01N2201/12
摘要： Embodiments of the present invention provide jewel and jade identification method and apparatus. The method comprises the steps: (a) placing a sample to be detected over a light transmission hole formed on a carrying surface of an object table and emitting, by an optical probe disposed below the carrying surface, an exciting light onto the sample through the light transmission hole and then collecting a Raman scattered light from the sample by the optical probe. (b) acquiring a Raman spectrum curve of the sample from the collected Raman scattered light from the sample; and (c) comparing the Raman spectrum curve with a reference Raman spectrum library for jewels and jades to identify the sample. The method and apparatus may achieve effective, convenient and accurate inspections of the jewels and jades.

66. 发明授权

US10013750B2 Object detection methods, display methods and apparatuses 有权
公开(公告)号：US10013750B2
公开(公告)日：2018-07-03
申请号：US14138399
申请日：2013-12-23
申请人： Tsinghua University , Nuctech Company Limited
发明人： Li Zhang , Zhiqiang Chen , Ziran Zhao , Qiang Li , Jianping Gu , Yunda Sun
IPC分类号： G06T7/00 , G06T9/00 , G06T15/08 , G01V5/00 , 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.

67. 发明申请

US20170075026A1 INSPECTION DEVICES, INSPECTION METHODS AND INSPECTION SYSTEMS 审中-公开
标题翻译：检查设备，检查方法和检查系统
公开(公告)号：US20170075026A1
公开(公告)日：2017-03-16
申请号：US15122659
申请日：2015-03-03
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang Chen , Li Zhang , Tianyi Yangdai , Qingping Huang
IPC分类号： G01V5/00 , G01N23/10 , G01N23/083
CPC分类号： G01V5/0025 , G01N23/083 , G01N23/10 , G01N2223/50 , G01N2223/643 , G01T1/36 , G01V5/0033 , G01V5/0066
摘要： The present disclosure discloses an inspection device, an inspection method and an inspection system. The device comprises a distributed ray source comprising multiple source points; a light source collimator configured to converge the rays generated by the distributed ray source to form an inverted fan-shaped ray beam; a scatter collimator configured to only allow rays scattered at one or more particular scattering angles which are generated by the rays from the light source collimator interacting with inspected objects to pass; at least one detector each comprising multiple detection units which have an energy resolution capability and are substantially arranged in a cylindrical surface to receive the scattered rays passing through the scatter collimator; and a processing apparatus configured to calculate energy spectrum information of the scattered rays from the inspected objects based on a signal output by the detectors.
摘要翻译：本公开公开了一种检查装置，检查方法和检查系统。该装置包括分布式射线源，其包括多个源点; 光源准直器，其被配置为会聚由所述分布式射线源产生的射线，以形成倒置的扇形射线束; 散射准直仪被配置为仅允许以与被检查物体相互作用的光源准直仪的光线产生的一个或多个特定散射角散射的光线; 至少一个检测器，每个检测器包括具有能量分辨能力的多个检测单元，并且基本上布置在圆柱形表面中以接收穿过散射准直仪的散射光线; 以及处理装置，被配置为基于由检测器输出的信号计算来自被检查物体的散射光的能谱信息。

68. 发明授权

US09572540B2 CT system and detection device for CT system 有权
标题翻译： CT系统和CT系统检测装置
公开(公告)号：US09572540B2
公开(公告)日：2017-02-21
申请号：US14355175
申请日：2013-07-15
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Li Zhang , Zhiqiang Chen , Yuanjing Li , Mingliang Li
IPC分类号： G01T1/24 , H01L27/146 , H01L27/148 , A61B6/00 , A61B6/04 , G01N23/04 , G01V5/00
CPC分类号： A61B6/482 , A61B6/0457 , A61B6/4241 , A61B6/542 , G01N23/046 , G01N2223/419 , G01N2223/643 , G01T1/242 , G01V5/0041 , H01L27/14601 , H01L27/14634 , H01L27/14658 , H01L27/14676 , H01L27/14806 , H01L27/14812
摘要： A detection device for a CT system comprises a low-energy detector assembly; and a high-energy detector assembly disposed under the low-energy detector assembly. The high-energy detector assembly comprises: a plurality of rows of high-energy detectors arranged at predetermined intervals. With the detection device, detectors and data acquisition units are greatly reduced. A high-resolution three-dimensional CT image is acquired while high-accuracy hazardous article alarm is achieved. The cost of manufacture of the system is greatly decreased while high system performance is ensured.
摘要翻译： CT系统的检测装置包括低能量检测器组件; 以及设置在低能量检测器组件下方的高能量检测器组件。高能量检测器组件包括：以预定间隔布置的多排高能检测器。利用检测装置，检测器和数据采集单元大大减少。获得高分辨率三维CT图像，同时实现高精度危险物品报警。系统的制造成本大大降低，同时保证了系统的高性能。

69. 发明授权

US09449399B2 Recognizing method of flaky or blocky prohibited articles, explosives or drugs 有权
标题翻译：识别薄片或块状物品，爆炸物或药物的方法
公开(公告)号：US09449399B2
公开(公告)日：2016-09-20
申请号：US14162225
申请日：2014-01-23
申请人： Tsinghua University , Nuctech Company Limited
发明人： Li Zhang , Qingping Huang , Yunda Sun , Lei Lei , Zhi Tang
IPC分类号： G06T7/40 , G01V5/00
CPC分类号： G06K9/6267 , G01V5/005 , G06K9/52 , G06K2009/4666 , G06T5/00 , G06T7/40 , G06T7/60 , G06T2207/10088 , G06T2207/20021 , G06T2207/20172 , G06T2207/30242
摘要： The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.
摘要翻译：本发明公开了识别片状或块状物品，爆炸物或药物的方法。具体来说，用于识别片状禁止物品，爆炸物或药物的方法包括以下步骤：（1）读取对于一个断层图像进行检查的物体的断层图数据; （2）预处理断层图像数据; （3）将预处理的断层图像数据分割成具有类似物理性质的多个区域; （4）分析每个分割区域是否是片状区域; （5）确定在当前断层图像中识别的片状区域是否可以与从先前断层图像检测到的片状区域合并，以便形成片状目标; （6）确定每个检测到的片状目标是完整还是完成; （7）重复步骤（1） - （6）并逐层处理每个断层图像数据，直到所有断层图像数据都被处理。

70. 发明授权

US09324125B2 Methods and apparatuses for rendering CT image data 有权
标题翻译：用于渲染CT图像数据的方法和装置
公开(公告)号：US09324125B2
公开(公告)日：2016-04-26
申请号：US14540413
申请日：2014-11-13
申请人： Tsinghua University , Nuctech Company Limited
发明人： Ziran Zhao , Li Zhang , Zhiqiang Chen , Shuo Wang , Jianping Gu , Yunda Sun
IPC分类号： G06K9/00 , G06T1/00 , G06T15/08 , G06T1/20 , G06T3/40 , G06T7/00 , G06T11/00 , G06T15/04 , G06T15/06 , G06T15/20 , G06T15/40 , G06T15/60 , G06T15/80
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.
摘要翻译：本公开提供了一种用于呈现CT图像数据的方法。该方法包括获取背景的2D图像数据和目标的2D图像数据; 将目标的2D图像数据呈现为目标的3D图像，以获得射线的第一命中位置; 将背景的2D图像数据呈现为背景的3D图像; 基于第一命中位置调整背景的3D图像; 并综合渲染背景的3D图像和目标的3D图像。本公开还提供了用于实现该方法的装置。

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