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ICASSP
2009
IEEE

On acoustic surveillance of hazardous situations

9 years 7 months ago
On acoustic surveillance of hazardous situations
The present study presents a practical methodology for automatic space monitoring based solely on the perceived acoustic information. We consider the case where atypical situations such as screams, explosions and gunshots take place in a metro station environment. Our approach is based on a two stage recognition schema, each one exploiting HMMs for approximating the density function of the corresponding sound class. The main objective is to detect abnormal events that take place in a noisy environment. A thorough evaluation procedure is carried out under different SNR conditions and we report high detection rates with respect to false alarm and miss probabilities rates.
Stavros Ntalampiras, Ilyas Potamitis, Nikos Fakota
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where ICASSP
Authors Stavros Ntalampiras, Ilyas Potamitis, Nikos Fakotakis
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