University of Hertfordshire

From the same journal

By the same authors

Illegal Logging Detection Based on Acoustic Surveillance of Forest

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Documents

  • Iosif Mporas
  • Isidoros Perikos
  • Vasilios Kelefouras
  • Michael Paraskevas
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Original languageEnglish
Article number7379
Number of pages12
JournalApplied Sciences
Volume10
Issue20
DOIs
Publication statusPublished - 21 Oct 2020

Abstract

In this article, we present a framework for automatic detection of logging activity in forests using audio recordings. The framework was evaluated in terms of logging detection classification performance and various widely used classification methods and algorithms were tested. Experimental setups, using different ratios of sound-to-noise values, were followed and the best classification accuracy was reported by the support vector machine algorithm. In addition, a postprocessing scheme on decision level was applied that provided an improvement in the performance of more than 1%, mainly in cases of low ratios of sound-to-noise. Finally, we evaluated a late-stage fusion method, combining the postprocessed recognition results of the three top-performing classifiers, and the experimental results showed a further improvement of approximately 2%, in terms of absolute improvement, with logging sound recognition accuracy reaching 94.42% when the ratio of sound-to-noise was equal to 20 dB.

Notes

© 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).

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