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Detection and localization of selected acoustic events in 3D acoustic field for smart surveillance applications
Abstract
A method for automatic determination of position of chosen sound events such as speech signals and impulse sounds in 3-dimensional space is presented. The events are localized in the presence of sound reflections employing acoustic vector sensors. Human voice and impulsive sounds are detected using adaptive detectors based on modified peak-valley difference (PVD) parameter and sound pressure level. Localization based on signals from the multichannel acoustic vector probe is performed upon the detection. The described algorithms can be useful in a surveillance systems to monitor the behavior of participants of public events. The results can be used to detect the position of sound source in real time or to calculate the spatial distribution of sounds in the environment. Moreover, spatial filtration can be performed to separate the sounds coming from the chosen direction.
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- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Published in:
-
Communications in Computer and Information Science
no. 149,
pages 55 - 63,
ISSN: 1865-0929 - Title of issue:
- 4th International Conference on Multimedia Communications, Services and Security (MCSS 2011) strony 55 - 63
- Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Kotus J., Łopatka K., Czyżewski A..: Detection and localization of selected acoustic events in 3D acoustic field for smart surveillance applications, W: 4th International Conference on Multimedia Communications, Services and Security (MCSS 2011), 2011, Springer,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/978-3-642-21512-4_7
- Verified by:
- Gdańsk University of Technology
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