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    Method for positioning target in three-dimensional CT image and security check system
    1.
    发明授权
    Method for positioning target in three-dimensional CT image and security check system 有权

    公开(公告)号：US10145977B2

    公开(公告)日：2018-12-04

    申请号：US15300668

    申请日：2015-12-15

    申请人： NUCTECH COMPANY LIMITED

    发明人： Zhiqiang Chen ,  Li Zhang ,  Shuo Wang ,  Yunda Sun ,  Qingping Huang ,  Zhi Tang

    IPC分类号： G01V5/00 ,  G01N23/046 ,  G06T11/00

    摘要： A method for positioning a target in a three-dimensional CT image and a security check system. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a first viewing angle to generate a first three-dimensional description; receiving a selection by the user of at least one area of the three-dimensional CT image at a second viewing angle to generate a second three-dimensional description, wherein an angle between the first viewing angle and the second viewing angle is within a predetermined range and the first three-dimensional description and the second three-dimensional description are related to a size, a location, and/or a physical property of a target at corresponding viewing angles; and determining the target in the three-dimensional CT image based on the first three-dimensional description and the second three-dimensional description.

    Recognizing method of flaky or blocky prohibited articles, explosives or drugs
    2.
    发明授权
    Recognizing method of flaky or blocky prohibited articles, explosives or drugs 有权
    识别薄片或块状物品，爆炸物或药物的方法

    公开(公告)号：US09542624B2

    公开(公告)日：2017-01-10

    申请号：US15074270

    申请日：2016-03-18

    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： G06K9/62 ,  G01V5/00 ,  G06T7/40 ,  G06K9/52 ,  G06T5/00 ,  G06T7/60 ,  G06K9/46

    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。

    RECOGNIZING METHOD OF FLAKY OR BLOCKY PROHIBITED ARTICLES, EXPLOSIVES OR DRUGS
    3.
    发明申请
    RECOGNIZING METHOD OF FLAKY OR BLOCKY PROHIBITED ARTICLES, EXPLOSIVES OR DRUGS 有权
    FLAKY或封闭禁止物品的识别方法，爆炸物或药物

    公开(公告)号：US20160314378A1

    公开(公告)日：2016-10-27

    申请号：US15074270

    申请日：2016-03-18

    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： G06K9/62 ,  G06T5/00 ,  G06T7/60 ,  G01V5/00 ,  G06K9/52

    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。

    IMAGE DISPLAY METHODS
    5.
    发明申请
    IMAGE DISPLAY METHODS 有权
    图像显示方法

    公开(公告)号：US20150332498A1

    公开(公告)日：2015-11-19

    申请号：US14711949

    申请日：2015-05-14

    申请人： Nuctech Company Limited

    发明人： Li Zhang ,  Zhiqiang Chen ,  Qingping Huang ,  Yunda Sun ,  Zhi Tang ,  Le Shen ,  Hu Tang ,  Qianlu Ren ,  Xin Jin

    IPC分类号： G06T17/00 ,  G06T11/00 ,  G06T19/00 ,  A61B6/03 ,  A61B6/00

    CPC分类号： G06T17/00 ,  A61B6/032 ,  A61B6/463 ,  A61B6/466 ,  A61B6/5205 ,  A61B6/5223 ,  G01N23/046 ,  G06T11/003 ,  G06T19/003 ,  G06T2207/10081 ,  G06T2207/10124 ,  G06T2207/30004 ,  G06T2207/30196 ,  G06T2210/41 ,  G06T2211/436 ,  G06T2219/016 ,  G06T2219/028 ,  G06T2219/2004

    摘要： The present disclosure discloses an image display method in a CT system. The method comprises: implementing CT scanning on an inspected object, to obtain CT projection data; organizing the CT projection data according to a predetermined interval; extracting basic data from the organized CT projection data by using a fixed angle as a start angle and using 360 degrees as an interval; forming a DR image based on the extracted basic data; reconstructing a three-dimensional image of the inspected object from the CT projection data; and displaying the DR image and the reconstructed three-dimensional image on a screen at the same time. In the solution, the CT data is processed to obtain DR data. After the DR data is obtained, a DR image is obtained directly using a DR data processing algorithm. This enables an image recognizer to more accurately and more rapidly inspect goods carried by a passenger using the existing experience in image recognition of the DR image.

    摘要翻译： 本公开公开了一种CT系统中的图像显示方法。 该方法包括：对检测对象进行CT扫描，获得CT投影数据; 根据预定间隔组织CT投影数据; 通过使用固定角度作为起始角度并以360度为间隔从有组织的CT投影数据提取基本数据; 基于所提取的基本数据形成DR图像; 从CT投影数据重构检查对象的三维图像; 同时在屏幕上显示DR图像和重构的三维图像。 在解决方案中，处理CT数据以获得DR数据。 在获得DR数据之后，使用DR数据处理算法直接获得DR图像。 这使得图像识别器可以使用DR图像的图像识别中的现有经验更准确和更快速地检查乘客携带的货物。

    Recognizing method of flaky or blocky prohibited articles, explosives or drugs
    8.
    发明授权
    Recognizing method of flaky or blocky prohibited articles, explosives or drugs 有权
    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。