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公开(公告)号：US20170308766A1
公开(公告)日：2017-10-26
申请号：US15129389
申请日：2015-12-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang CHEN , Li ZHANG , Ziran ZHAO , Yaohong LIU , Duokun ZHANG , Jianping GU , Qiang LI , Jian ZHANG
CPC classification number: G06K9/3241 , G01N23/046 , G01V5/0016 , G01V5/005
Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.
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公开(公告)号：US20170178312A1
公开(公告)日：2017-06-22
申请号：US15278101
申请日：2016-09-28
Applicant: Tsinghua University , NUCTECH COMPANY LIMITED
Inventor： Yuanjing LI , Ziran ZHAO , Yaohong LIU , Qili WANG , Qiang LI , Jianping GU
CPC classification number: G06T7/0004 , G01N23/04 , G01N2223/401 , G01N2223/626 , G06K9/48 , G06T7/0085 , G06T7/13 , G06T7/40 , G06T2207/10116
Abstract: The present disclosure provides a method and a system for inspecting goods. The method comprises steps of: obtaining a transmission image of inspected goods; processing the transmission image to obtain a suspicious region; extracting local texture features of the suspicious region and classifying the local texture features of the suspicious region based on a pre-created model to obtain a classification result; extracting a contour line shape feature of the suspicious region and comparing the contour line shape feature with a pre-created standard template to obtain a comparison result; and determining that the suspicious region contains a high atomic number matter based on the classification result and the comparison result.
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公开(公告)号：US20160335503A1
公开(公告)日：2016-11-17
申请号：US15034021
申请日：2014-11-11
Applicant: NUCTECH COMPANY LIMITED
Inventor： Li ZHANG , Zhiqiang CHEN , Qiang LI , Jian ZHANG , Jianping GU , Jin CUI
CPC classification number: G06K9/00771 , G06K9/00 , G06K9/3241 , G06K9/38 , G06K9/40 , G06K9/42 , G06K9/4642 , G06K9/627 , G06K2209/09
Abstract: The present disclosure discloses an inspection method and device. The method comprises steps of acquiring a perspective image of an inspected object; processing the perspective image to obtain a region of interest; and automatically detecting the region of interest using a cigarette model, to determine whether the region of interest of the perspective image belongs to a cigarette. In the present disclosure, cigarette detection is implemented on a scanned image of goods, particularly a container, which can avoid the problem of detection vulnerability and poor effect of manual image judgment for the conventional manner, and is of significance in fighting against cigarette smuggling.
Abstract translation: 本公开公开了一种检查方法和装置。 该方法包括获取被检查对象的透视图像的步骤; 处理透视图以获得感兴趣的区域; 并使用香烟模型自动检测感兴趣区域，以确定透视图像的感兴趣区域是否属于香烟。 在本公开中，香烟检测在商品的扫描图像，特别是容器上实现，其可以避免检测脆弱性的问题以及常规方式的手动图像判断的差的影响，并且对于打击卷烟走私具有重要意义。
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4.发明申请公开(公告)号：US20160321816A1
公开(公告)日：2016-11-03
申请号：US15204564
申请日：2016-07-07
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Zhiqiang CHEN , Li ZHANG , Ziran ZHAO , Qingping HUANG , Qiang LI , Jianping GU , Yunda SUN
CPC classification number: G06T7/596 , G06K9/00201 , G06K9/00523 , G06K9/00536 , G06K9/6215 , G06K9/627 , G06K2209/09 , G06T7/0004 , G06T7/68 , G06T11/008 , G06T2207/10081 , G06T2207/30112 , G06T2211/408
Abstract: Methods for extracting a shape feature of an object and security inspection methods and apparatuses. Use is made of CT's capability of obtaining a 3D structure. The shape of an object in an inspected luggage is used as a feature of a suspicious object in combination with a material property of the object. For example, a false alarm rate in detection of suspicious explosives may be reduced.
Abstract translation: 用于提取对象的形状特征的方法和安全检查方法和装置。 使用CT可以获得3D结构。 检查行李中的物体的形状被用作可疑物体的特征，与物体的材料属性相结合。 例如，可能会减少检测可疑炸药的误报率。
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公开(公告)号：US20150332448A1
公开(公告)日：2015-11-19
申请号：US14138399
申请日：2013-12-23
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Li ZHANG , Zhiqiang CHEN , Ziran ZHAO , Qiang LI , Jianping GU , Yunda SUN
CPC classification number: G06T7/0004 , G01V5/005 , G06K9/00201 , G06T7/0002 , G06T15/08 , G06T2200/04 , G06T2207/10116 , G06T2207/30112
Abstract: 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.
Abstract translation: 本发明涉及物体检测方法，显示方法和装置。 该方法包括在CT系统中获取检验行李的切片数据; 从切片数据生成行李中物体的3D体积数据; 对于每个对象，基于3D体积数据确定至少包括对象的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。 上述解决方案可以以相对准确的方式为被检查行李中的对象创建3D模型，从而为随后的形状特征提取和安全检查提供更好的依据，并减少遗漏因素。
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Patent Agency Ranking
公开(公告)号：US20180195979A1
公开(公告)日：2018-07-12
申请号：US15865520
申请日：2018-01-09
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Qiang LI , Jianping GU , Bin XU , Yaohong LIU , Ziran ZHAO
IPC: G01N23/046 , G01N23/041 , G01V5/00
Abstract: A method for inspecting a container and an inspection device are disclosed. X-ray scanning is performed on the inspected container to obtain a scanned image. The scanned image is processed to obtain a region of interest. Features of texture units included in the region of interest are calculated. Local descriptions of the texture units are formed based on the features of the texture units. Distinction of each local point is calculated from a local description of each of the texture units so as to obtain a local distinct map of the region of interest. It is determined whether there is an article which is secretly carried in the inspected container using the local distinct map.
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公开(公告)号：US20180182126A1
公开(公告)日：2018-06-28
申请号：US15852103
申请日：2017-12-22
Applicant: Nuctech Company Limited
Inventor： Yanwei XU , Zheng HU , Yongming WANG , Chuan GAO , Weifeng YU , Qiang LI , Yuan MA , Jianping GU , Yu HU , Shangmin SUN
CPC classification number: G06T7/74 , G06K9/00771 , G06K9/00791 , G06K9/6262 , G06N3/0472 , G06N3/08 , G06T3/40 , G06T2207/20081 , G06T2207/20084 , G06T2207/30248
Abstract: The present disclosure discloses a method and system for identifying a part of a vehicle and a vehicle inspection system. The method includes: acquiring a vehicle body image sequence of a vehicle to be identified; reconstructing the vehicle body by using a first vehicle body reconstruction model generated through a deep learning algorithm and on the basis of the vehicle body image sequence, so as to acquire a vehicle body reconstruction image of the vehicle to be identified; and identifying a boundary identifier of the vehicle to be identified on the basis of the vehicle body reconstruction image of the vehicle to be identified.
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8.发明申请FLUOROSCOPIC INSPECTION METHOD, DEVICE AND STORAGE MEDIUM FOR AUTOMATIC CLASSIFICATION AND RECOGNITION OF CARGOES 审中-公开荧光检查方法，用于自动分类和识别货物的设备和储存介质公开(公告)号：US20150189239A1
公开(公告)日：2015-07-02
申请号：US14580488
申请日：2014-12-23
Applicant: Nuctech Company Limited
Inventor： Ziran ZHAO , Yaohong LIU , Jianping GU , Qiang LI , Jian ZHANG
CPC classification number: H04N7/18 , G01V5/0016 , G06K9/00624 , G06K9/4676 , G06K2209/09 , G06T7/0004 , G06T2207/10121 , G06T2207/20076 , G06T2207/20081 , G06T2207/30112
Abstract: The present disclosure relates to a fluoroscopic inspection system for automatic classification and recognition of cargoes. The system includes: an image data acquiring unit, configured to perform scanning and imaging for a container by using an X-ray scanning device to acquire a scanned image; an image segmenting unit, configured to segment the scanned image into small regions each having similar gray scales and texture features; a feature extracting unit, configured to extract features of the small regions; a training unit, configured to generate a classifier according to annotated images; and a classification and recognition unit, configured to recognize the small regions by using the classifier according to the extracted features, to obtain a probability of each small region pertaining to a certain category of cargoes, and merge small regions to obtain large regions each representing a category.
Abstract translation: 本公开涉及一种用于自动分类和识别货物的荧光检查系统。 该系统包括：图像数据获取单元，被配置为通过使用X射线扫描装置对容器进行扫描和成像以获取扫描图像; 图像分割单元，被配置为将扫描图像分割成具有相似灰度和纹理特征的小区域; 特征提取单元，被配置为提取所述小区域的特征; 训练单元，被配置为根据注释的图像生成分类器; 以及分类识别单元，被配置为根据提取的特征通过使用分类器来识别小区域，以获得与特定类别的货物相关的每个小区域的概率，并且合并小区域以获得每个表示 类别。
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9.发明申请RETRIEVING SYSTEM, RETRIEVING METHOD, AND SECURITY INSPECTION DEVICE BASED ON CONTENTS OF FLUOROSCOPIC IMAGES 审中-公开基于荧光图像内容的检索系统，检索方法和安全检查设备公开(公告)号：US20150186374A1
公开(公告)日：2015-07-02
申请号：US14580571
申请日：2014-12-23
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Yuanjing LI , Ziran ZHAO , Jian ZHANG , Qiang LI , Jianping GU
CPC classification number: G06F16/51 , G01V5/0058 , G06F16/54 , G06F16/583 , G06K9/4642 , G06K9/4671 , G06K9/4676 , G06K9/6263 , G06T7/001 , G06T7/0014 , G06T2207/10064 , G06T2207/30004 , G06T2207/30112
Abstract: Disclosed are a retrieving system and a retrieving method based on content of fluoroscopic images, the retrieving system comprising: a pre-classifying module, configured to pre-classify fluoroscopic images; an image content feature extracting module, configured to perform feature extraction for contents of the fluoroscopic images; an image representing module, configured to construct an image representation vector; a retrieving module, configured to construct a result of preliminary candidates; a diversified filtering module, configured to filter the result of preliminary candidates, select an image subset capable of covering a plurality of article categories, and thereby construct a diversified retrieval result; a correlation feedback regulating module, configured to receive information feedback on the retrieval result from a user, and update the retrieval model; and an interacting module, configured to display the retrieval result, and collect feedback on user's satisfaction of the retrieval result.
Abstract translation: 公开了一种基于荧光透视图像的内容的检索系统和检索方法，所述检索系统包括：预分类模块，被配置为预先对荧光图像进行分类; 图像内容特征提取模块，被配置为对所述透视图像的内容执行特征提取; 图像表示模块，被配置为构造图像表示向量; 检索模块，被配置为构建初步候选的结果; 多元化过滤模块，被配置为过滤初步候选的结果，选择能够覆盖多个文章类别的图像子集，从而构建多样化的检索结果; 相关反馈调节模块，被配置为从用户接收关于检索结果的信息反馈，并更新检索模型; 以及交互模块，用于显示检索结果，并收集用户对检索结果满意度的反馈。
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公开(公告)号：US20190156139A1
公开(公告)日：2019-05-23
申请号：US16255738
申请日：2019-01-23
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang CHEN , Li ZHANG , Ziran ZHAO , Yaohong LIU , Duokun ZHANG , Jianping GU , Qiang LI , Jian ZHANG
IPC: G06K9/32 , G01N23/046 , G01V5/00
CPC classification number: G06K9/3241 , G01N23/046 , G01V5/0016 , G01V5/005
Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.
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