-
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.
-
公开(公告)号：US20170213331A1
公开(公告)日：2017-07-27
申请号：US15409738
申请日：2017-01-19
Applicant: Nuctech Company Limited
Inventor： Zhiqiang CHEN , Yuanjing LI , Li ZHANG , Ziran ZHAO , Yaohong LIU , Jianping GU , Zhiming WANG
CPC classification number: G06T7/0002 , G06K9/6245 , G06K9/6298 , G06K2009/4695 , G06T3/0056 , G06T5/002 , G06T2207/10116 , G06T2207/20021 , G06T2207/20052 , G06T2207/20076 , G06T2207/20081
Abstract: A method of evaluating an image quality for an imaging system and the imaging system are provided. The method may comprise: acquiring an image to be evaluated which is generated by the imaging system; extracting a plurality of sub-images from the image; obtaining a coefficient vector indicating a degree of sparsity by applying a sparse decomposition on the plurality of sub-images based on a pre-set redundant sparse representation dictionary; and performing a linear transformation on the coefficient vector so as to obtain an evaluation value for the image quality. The sparse dictionary is learned by only using a few high quality perspective images, and then the image quality is evaluated based on the sparse degree of the image which is obtained by using the sparse dictionary, thereby achieving a convenient and rapid no-reference image quality evaluation.
-
13.发明申请Methods and apparatuses for creating a statistical average model of an enamel-dentine junction 审中-公开用于创建釉质 - 牙质结的统计平均模型的方法和装置公开(公告)号：US20150220683A1
公开(公告)日：2015-08-06
申请号：US14540457
申请日：2014-11-13
Applicant: Nuctech Company Limited
Inventor： Zhiqiang CHEN , Yuanjing LI , Li ZHANG , Ziran ZHAO , Jianping GU , Shuo WANG
CPC classification number: G16B5/00 , G06F17/18 , G06K9/6209 , G06K2209/055 , G06T17/20 , G06T2210/41
Abstract: Disclosed is method and apparatus for creating a statistical average model of an enamel-dentine junction. The method includes steps of: acquiring CT image data of a tooth; segmenting the CT image data to obtain a surface of an enamel-dentine junction; segmenting the obtained surface using a curvature-based clustering algorithm to remove a bottom of the enamel-dentine junction; spherical-parameterizing, by means of spherical harmonic analysis, the surface of the enamel-dentine junction after removal of the bottom; and aligning different samples of the tooth to obtain a statistical average model.
Abstract translation: 公开了用于创建釉质 - 牙质结的统计平均模型的方法和装置。 该方法包括以下步骤：获取牙齿的CT图像数据; 分割CT图像数据以获得釉 - 牙质结的表面; 使用基于曲率的聚类算法分割所获得的表面以去除釉质 - 牙质结的底部; 球形参数化，通过球面谐波分析，去除底部后的釉质 - 牙质结的表面; 并对齐不同牙齿样本以获得统计学平均模型。
-
14.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。
-
15.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。
-
Patent Agency Ranking
公开(公告)号：US20150154809A1
公开(公告)日：2015-06-04
申请号：US14540440
申请日：2014-11-13
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang CHEN , Yuanjing LI , Ziran ZHAO , Shuo WANG , Jianping GU , Yunda SUN
CPC classification number: G06T19/20 , G06T7/0012 , G06T15/06 , G06T15/08 , G06T15/10 , G06T17/005 , G06T2207/10136 , G06T2210/12 , G06T2219/2021
Abstract: The present disclosure provides method and apparatus for marking a target in a 3D image. The method include steps of: acquiring Computed Tomography (CT) image data of a scene; rendering a 3D image of the scene using ray casting based on the CT image data; removing a transparent region from the 3D image based on a fixed 2D transfer function; and marking the target in the 3D image.
Abstract translation: 本公开提供了用于在3D图像中标记目标的方法和装置。 该方法包括以下步骤：获取场景的计算机断层扫描（CT）图像数据; 使用基于CT图像数据的射线投射来渲染场景的3D图像; 基于固定的2D传递函数从3D图像中去除透明区域; 并在3D图像中标记目标。
-
公开(公告)号：US20190170894A1
公开(公告)日：2019-06-06
申请号：US16253221
申请日：2019-01-22
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Kejun KANG , Yaohong LIU , Ziran ZHAO , Wei JIA , Jianping GU , Chuanxiang TANG , Huaibi CHEN , Jianjun GAO , Wei YIN , Xiying LIU
Abstract: This invention provides a scan method, scan system and radiation scan controller, and relates to the field of radiation. The scanning method includes obtaining detection data of an object to be inspected under radiation scanning using a detector, adjusting an accelerator output beam dose rate and/or an output electron beam energy level of a radiation emission device according to the detection data. With this method, working conditions of the accelerator of the radiation emission device may be adjusted according to the detection data detected by the detector, so that for a region having a larger mass thickness, a higher output beam dose rate or a higher electron beam output energy level is adopted to guarantee satisfied imaging technical indexes, for a region having a smaller mass thickness, a lower output beam dose rate or a lower electron beam output energy level is adopted to reduce the environmental dose level while guaranteeing satisfied imaging technical indexes.
-
公开(公告)号：US20190035117A1
公开(公告)日：2019-01-31
申请号：US16045383
申请日：2018-07-25
Applicant: NUCTECH COMPANY LIMITED , Tsinghua University
Inventor： Yuxiang XING , Li ZHANG , Jianmin LI , Zhiqiang CHEN , Jianping GU
Abstract: A method and device for reconstructing a CT image and a storage medium are disclosed. CT scanning is performed on an object to be inspected to obtain projection data on a first scale. Projection data on a plurality of other scales is generated from the projection data on the first scale. Projection data on each scale is processed on the corresponding scale by using a first convolutional neural network to obtain processed projection data, and a back-projection operation is performed on the processed projection data to obtain a CT image on the corresponding scale. CT images on the plurality of scales are fused to obtain a reconstructed image of the object to be inspected.
-
19.发明申请公开(公告)号：US20180153493A1
公开(公告)日：2018-06-07
申请号：US15720502
申请日：2017-09-29
Applicant: NUCTECH COMPANY LIMITED
Inventor： Guangming XU , Bicheng LIU , Ziran ZHAO , Lan ZHANG , Jianping GU
CPC classification number: A61B6/482 , A61B6/02 , A61B6/06 , A61B6/4014 , A61B6/4241 , G01V5/0041
Abstract: The present disclosure provides a method for recognizing an article using a multi-energy spectrum X-ray imaging system and a multi-energy spectrum X-ray imaging system. The method comprises: recognizing an application scenario and/or priori information of the article; selecting a parameter mode suitable for the article from a plurality of parameter modes stored in the multi-energy spectrum X-ray imaging system based on the recognized application scenario and/or priori information; and recognizing the article using the selected parameter mode, wherein the plurality of parameter modes are obtained by optimizing system parameters of the multi-energy spectrum X-ray imaging system under a specific condition using a training sample library for various articles.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
35
records
(took 0.022 seconds)
