公开(公告)号：US20160178789A1

公开(公告)日：2016-06-23

申请号：US14757400

申请日：2015-12-23

Applicant: TSINGHUA UNIVERSITY ,  Nuctech Company Limited

Inventor： Li Zhang ,  Mingzhi Hong ,  Qingping Huang ,  Xin Jin

IPC: G01V5/00 ,  G01N23/04

CPC classification number: G01V5/005 ,  G01N23/046 ,  G01V5/0041

Abstract: The present disclosure provides a dual-source security inspection CT scanning system and scanning method. The system includes two sets of scan imaging systems, wherein each set of the scan imaging systems has its own separate ray source and detector, the two sets of scan imaging systems are juxtaposed on a same rotary mechanism, and a predetermined interval is provided between imaging planes of the two sets of scan imaging systems. The present disclosure ensures the two sets of imaging optical paths do not interfere with each other, therefore effectively avoiding the problem of scattering mutual interference between the dual sources of the dual-source CT scanning system in the prior art.

Abstract translation: 本公开提供了一种双源安全检查CT扫描系统和扫描方法。 该系统包括两组扫描成像系统，其中每组扫描成像系统具有其自己的单独的光源和检测器，两组扫描成像系统并置在相同的旋转机构上，并且在成像之间提供预定间隔 两组扫描成像系统的平面。 本公开确保了两组成像光路不彼此干涉，因此有效地避免了现有技术中双源CT扫描系统的双重源之间散射相互干扰的问题。

公开(公告)号：US20150332498A1

公开(公告)日：2015-11-19

申请号：US14711949

申请日：2015-05-14

Applicant: Nuctech Company Limited

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

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。