Citation

Almaadeed N, Asim M, Al-Maadeed S, Bouridane A, Beghdadi A. Sensors (Basel) 2018; 18(6): s18061858.

Affiliation

L2TI, Institut Galilée, Université Paris 13, Sorbonne Paris Cité 99, Avenue J.B. Clément, 93430 Villetaneuse, France. beghdadi@univ-paris13.fr.

Copyright

(Copyright © 2018, MDPI: Multidisciplinary Digital Publishing Institute)

DOI

10.3390/s18061858

PMID

29882825

Abstract

This work investigates the problem of detecting hazardous events on roads by designing an audio surveillance system that automatically detects perilous situations such as car crashes and tire skidding. In recent years, research has shown several visual surveillance systems that have been proposed for road monitoring to detect accidents with an aim to improve safety procedures in emergency cases. However, the visual information alone cannot detect certain events such as car crashes and tire skidding, especially under adverse and visually cluttered weather conditions such as snowfall, rain, and fog. Consequently, the incorporation of microphones and audio event detectors based on audio processing can significantly enhance the detection accuracy of such surveillance systems. This paper proposes to combine time-domain, frequency-domain, and joint time-frequency features extracted from a class of quadratic time-frequency distributions (QTFDs) to detect events on roads through audio analysis and processing. Experiments were carried out using a publicly available dataset. The experimental results conform the effectiveness of the proposed approach for detecting hazardous events on roads as demonstrated by 7% improvement of accuracy rate when compared against methods that use individual temporal and spectral features.

Language: en

Keywords

car crashes; event detection; hazardous events; tire skidding; visual surveillance