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Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing

This paper aims to evaluate detection algorithms for perimeter security systems based on phase-sensitive optical time-domain reflectometry ([Formula: see text]-OTDR). Our own designed and developed sensor system was used for the measurement. The main application of the system is in the area the peri...

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Autores principales: Dejdar, Petr, Záviška, Pavel, Valach, Soběslav, Münster, Petr, Horváth, Tomáš
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9229558/
https://www.ncbi.nlm.nih.gov/pubmed/35746356
http://dx.doi.org/10.3390/s22124573
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author Dejdar, Petr
Záviška, Pavel
Valach, Soběslav
Münster, Petr
Horváth, Tomáš
author_facet Dejdar, Petr
Záviška, Pavel
Valach, Soběslav
Münster, Petr
Horváth, Tomáš
author_sort Dejdar, Petr
collection PubMed
description This paper aims to evaluate detection algorithms for perimeter security systems based on phase-sensitive optical time-domain reflectometry ([Formula: see text]-OTDR). Our own designed and developed sensor system was used for the measurement. The main application of the system is in the area the perimeter fencing intrusion detection. The system is unique thanks to the developed motherboard, which contains a field-programmable gate array (FPGA) that takes care of signal processing. This allows the entire system to be integrated into a 1U rack chassis. A polygon containing two different fence types and also cable laid underground in a plastic tube was used for testing. Edge detection algorithms using the Sobel and Prewitt operators are considered for post-processing. The comparison is made based on the signal-to-noise ratio (SNR) values calculated for each event. Results of algorithms based on edge detection methods are compared with the conventional differential method commonly used in [Formula: see text]-OTDR systems.
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spelling pubmed-92295582022-06-25 Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing Dejdar, Petr Záviška, Pavel Valach, Soběslav Münster, Petr Horváth, Tomáš Sensors (Basel) Article This paper aims to evaluate detection algorithms for perimeter security systems based on phase-sensitive optical time-domain reflectometry ([Formula: see text]-OTDR). Our own designed and developed sensor system was used for the measurement. The main application of the system is in the area the perimeter fencing intrusion detection. The system is unique thanks to the developed motherboard, which contains a field-programmable gate array (FPGA) that takes care of signal processing. This allows the entire system to be integrated into a 1U rack chassis. A polygon containing two different fence types and also cable laid underground in a plastic tube was used for testing. Edge detection algorithms using the Sobel and Prewitt operators are considered for post-processing. The comparison is made based on the signal-to-noise ratio (SNR) values calculated for each event. Results of algorithms based on edge detection methods are compared with the conventional differential method commonly used in [Formula: see text]-OTDR systems. MDPI 2022-06-17 /pmc/articles/PMC9229558/ /pubmed/35746356 http://dx.doi.org/10.3390/s22124573 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dejdar, Petr
Záviška, Pavel
Valach, Soběslav
Münster, Petr
Horváth, Tomáš
Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title_full Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title_fullStr Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title_full_unstemmed Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title_short Image Edge Detection Methods in Perimeter Security Systems Using Distributed Fiber Optical Sensing
title_sort image edge detection methods in perimeter security systems using distributed fiber optical sensing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9229558/
https://www.ncbi.nlm.nih.gov/pubmed/35746356
http://dx.doi.org/10.3390/s22124573
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