Imaging with Electromagnetic Waves: Principles and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (16 March 2021) | Viewed by 2462

Special Issue Editor


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Guest Editor
(1) Industry-Academic Cooperation Foundation;
(2) Department of Biomedical Engineering, Konyang University, Nonsan, Korea
Interests: EM imaging applications to detection and identification of hidden objects; 3 Dimensional imaging and displays; laser instrumentation and measurements

Special Issue Information

It is well known that any spectral range of the Electromagnetic (EM) wave spectrum can be used to take images of a scene/object. X-ray, panchromatic, spectral, infrared, tera-hertz, mm, M/W, Synthetic Aperture Radar (SAR), and Ground Penetrating Radar (GPR) are very well known images taken with different EM spectral ranges, since different EM spectral ranges reveal different characteristics of resolving power, penetrating depth, color and composition identification, and thermal matching. For these reasons, each image has been very widely used for its specific purposes in different sciences, engineering, and industries, for diagnostics, mapping, and identification of objects/scenes being tested.

This Special Issue is devoted to reviewing the current technological status and new applications of such images.

Prof. JungYoung Son
Guest Editor

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Keywords

  • X-ray imaging in medical and other industrial diagnostics
  • Detection and identification with spectral images
  • GPR for underground mapping and identification
  • Infrared detection systems
  • Tera-Hertz and mm imaging for hidden object detection, and spectroscopy
  • Multi-dimensional processing of EM imaging
  • Super resolution technique for EM imaging
  • Night driving systems…

Published Papers (1 paper)

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Research

17 pages, 1531 KiB  
Article
Inverse Multiscale Discrete Radon Transform by Filtered Backprojection
by José G. Marichal-Hernández, Ricardo Oliva-García, Óscar Gómez-Cárdenes, Iván Rodríguez-Méndez and José M. Rodríguez-Ramos
Appl. Sci. 2021, 11(1), 22; https://doi.org/10.3390/app11010022 - 22 Dec 2020
Cited by 3 | Viewed by 2092
Abstract
The Radon transform is a valuable tool in inverse problems such as the ones present in electromagnetic imaging. Up to now the inversion of the multiscale discrete Radon transform has been only possible by iterative numerical methods while the continuous Radon transform is [...] Read more.
The Radon transform is a valuable tool in inverse problems such as the ones present in electromagnetic imaging. Up to now the inversion of the multiscale discrete Radon transform has been only possible by iterative numerical methods while the continuous Radon transform is usually tackled with the filtered backprojection approach. In this study, we will show, for the first time, that the multiscale discrete version of Radon transform can as well be inverted with filtered backprojection, and by doing so, we will achieve the fastest implementation until now of bidimensional discrete Radon inversion. Moreover, the proposed method allows the sacrifice of accuracy for further acceleration. It is a well-conditioned inversion that exhibits a resistance against noise similar to that of iterative methods. Full article
(This article belongs to the Special Issue Imaging with Electromagnetic Waves: Principles and Applications)
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