• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical engineering >Fourier imaging and distance approximation using time of flight method for terahertz wave imaging
【24h】

Fourier imaging and distance approximation using time of flight method for terahertz wave imaging

机译：太赫兹波成像的飞行时间傅里叶成像和距离近似

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An active terahertz wave imaging method is investigated for improved system simplicity, inexpensive implementation, and distance approximation. The proposed technique is composed of a single-pixel setup that allows acquiring the two-dimensional (2-D) Fourier transform intensity map of the imaged object and additional depth data using time of flight method. A raster scan is performed to achieve the object's 2-D Fourier transform intensity and depth information. Iterative phase retrieval methods are employed to accomplish good image reconstruction using only the measured object's Fourier transform magnitude. The proposed method uses a glow discharge detector (GDD) as its single millimeter wave pixel and offers a simple noncalibrating scheme for 2-D imaging and distance approximation. This work shows experimental results of using the GDD as a distance approximation detector and specifies the advantages, disadvantages, and constraints when using such a sensor. Basic aperture imaging (transmission imaging) experimental results are also shown, and complex aperture imaging simulations and their corresponding reconstructions are presented. Finally, both 2-D imaging and acquired depth data are fused into a single three-dimensional reconstructed image to reveal the potential of the proposed method.
机译：研究了一种有源太赫兹波成像方法，以改善系统的简便性，廉价的实现方式和距离近似。所提出的技术由单像素设置组成，该设置允许使用飞行时间方法获取成像对象的二维（2-D）傅里叶变换强度图和其他深度数据。执行光栅扫描以获取对象的二维傅立叶变换强度和深度信息。仅使用被测对象的傅立叶变换幅度，采用迭代相位检索方法即可完成良好的图像重建。所提出的方法使用辉光放电检测器（GDD）作为其单个毫米波像素，并为二维成像和距离近似提供了一种简单的非校准方案。这项工作显示了将GDD用作距离近似检测器的实验结果，并说明了使用这种传感器时的优缺点。还显示了基本的光圈成像（透射成像）实验结果，并给出了复杂的光圈成像模拟及其相应的重构。最后，将二维成像和获取的深度数据融合到单个三维重建图像中，以揭示该方法的潜力。

著录项

  • 来源
    《Optical engineering》 |2014年第8期|083104.1-083104.11|共11页
  • 作者

    Amit Levi; Natan S. Kopeika; Amir Abramovich; Daniel Rozban;

  • 作者单位

    Ben-Gurion University of the Negev, Department of Electro-Optical Engineering, Beer-Sheva, P.O. Box 653, 8410501, Israel,Ariel University, Department of Electrical and Electronic Engineering, Ariel, P.O. Box 3, 40700, Israel;

    Ben-Gurion University of the Negev, Department of Electro-Optical Engineering, Beer-Sheva, P.O. Box 653, 8410501, Israel;

    Ariel University, Department of Electrical and Electronic Engineering, Ariel, P.O. Box 3, 40700, Israel;

    Ben-Gurion University of the Negev, Department of Electro-Optical Engineering, Beer-Sheva, P.O. Box 653, 8410501, Israel,Ariel University, Department of Electrical and Electronic Engineering, Ariel, P.O. Box 3, 40700, Israel;

  • 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

    Fourier imaging; glow discharge detectors; phase retrieval;

    机译：傅立叶成像;辉光放电检测器;相位检索;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号