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首页> 外文期刊>Machine Vision and Applications >Gamma/X-ray linear pushbroom stereo for 3D cargo inspection
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Gamma/X-ray linear pushbroom stereo for 3D cargo inspection

机译：用于3D货物检查的Gamma / X射线线性推扫帚立体声

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摘要

For evaluating the contents of trucks, containers, cargo, and passenger vehicles by a non-intrusive gamma-ray or X-ray imaging system to determine the possible presence of contraband, three-dimensional (3D) measurements could provide more information than just 2D measurements. In this paper, a linear pushbroom scanning model is built for such a commonly used gamma-ray or X-ray cargo inspection system. Three-dimensional (3D) measurements of the objects inside a cargo can be obtained by effectively constructing a pushbroom stereo system using two such scanning systems with different scanning angles. A simple but robust calibration method is proposed to find the important parameters of the linear pushbroom sensors. Then, a fast stereo matching algorithm is developed to obtain 3D measurements of the objects under inspection. This algorithm is fully automatic based on free-form deformable registration. An interactive user interface is designed for 3D visualization of the objectsrnof interest. Using the interactive tool, the automatic algorithm is also compared with a very simple semi-automatic algorithm based on point correlation. Experimental results of sensor calibration, stereo matching, 3D measurements and visualization of a 3D cargo container, and the objects inside, are presented.
机译：为了通过非侵入式伽马射线或X射线成像系统评估卡车，集装箱，货物和乘用车的内容物以确定是否存在违禁品，三维（3D）测量不仅可以提供2D信息，还可以提供更多信息。测量。在本文中，为这种常用的伽马射线或X射线货物检查系统建立了线性推扫扫帚扫描模型。可以通过使用两个具有不同扫描角度的此类扫描系统有效地构建推扫式立体声系统来获得对货物内部物体的三维（3D）测量。为了找到线性推扫传感器的重要参数，提出了一种简单而鲁棒的校准方法。然后，开发了一种快速的立体匹配算法，以获得被检查物体的3D测量结果。该算法是基于自由形式的可变形配准的全自动算法。交互式用户界面设计用于3D可视化感兴趣的对象。使用交互式工具，还将自动算法与基于点相关性的非常简单的半自动算法进行了比较。介绍了传感器校准，立体匹配，3D测量和3D货柜及其内部物体可视化的实验结果。

著录项

  • 来源
    《Machine Vision and Applications》 |2010年第4期|413-425|共13页
  • 作者

    Zhigang Zhu; Yu-Chi Hu; Li Zhao;

  • 作者单位

    Department of Computer Science, The City College of New York/CUNY, Convent Avenue, 138th Street, New York, NY 10031, USA Computer Science, The CUNY Graduate Center, 365 Fifth Avenue, New York, NY 10016, USA;

    Computer Science, The CUNY Graduate Center, 365 Fifth Avenue, New York, NY 10016, USA Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA;

    The CUNY Graduate Center, 365 Fifth Avenue, New York, NY 10016, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    pushbroom imaging; automatic 3D measurements; stereo matching; cargo inspection; homeland security;

    机译：推扫成像自动3D测量立体声匹配;货物检验;国土安全;

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