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Journal Article

Acoustic Detection of Human Activities in Natural Environments

Authors: Ntalampiras, Stavros; Potamitis, Ilyas; Fakotakis, Nikos

Journal of the Audio Engineering Society · Volume 60 · Issue 9 · pp. 686–695 · September 2012

Abstract

Automatic recognition of sound events can be valuable for efficient analysis of audio scenes. For example, detecting human activities like trespassing and hunting in natural environments can play an important role in their preservation by alerting authorities to take action. In the proposed system, each sound class is represented by a hidden Markov model created from descriptors in the time, frequency, and wavelet domains. The system has the ability to automatically adapt to acoustic conditions of different scenes via the feedback loop that refines an unsupervised model. A reliable testing process was adopted for assessing the performance of the system under adverse conditions characterized by highly nonstationary environmental noise.

Details

Publication
Journal of the Audio Engineering Society
Volume
60
Issue
9
Pages
686–695
Publication date
September 6, 2012
Affiliation
Politecnico di Milano, Milan, Italy; Technological Educational Institute of Crete, Rethymno, Greece; University of Patras, Patras, Greece (See document for exact affiliation information.)
Type
Journal Article