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Improvement of acoustic fall detection using Kinect depth sensing

Improvement of acoustic fall detection using Kinect depth sensing

Conference Proceedings 2013: 6736-6739

The latest acoustic fall detection system (acoustic FADE) has achieved encouraging results on real-world dataset. However, the acoustic FADE device is difficult to be deployed in real environment due to its large size. In addition, the estimation accuracy of sound source localization (SSL) and direction of arrival (DOA) becomes much lower in multi-interference environment, which will potentially result in the distortion of the source signal using beamforming (BF). Microsoft Kinect is used in this paper to address these issues by measuring source position using the depth sensor. We employ robust minimum variance distortionless response (MVDR) adaptive BF (ABF) to take advantage of well-estimated source position for acoustic FADE. A significant reduction of false alarms and improvement of detection rate are both achieved using the proposed fusion strategy on real-world data.

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Accession: 053748485

Download citation: RISBibTeXText

PMID: 24111289

DOI: 10.1109/embc.2013.6611102

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