A Joint Audio-Visual Approach to Audio Localization

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Abstrakt

Localization of audio sources is an important research problem, e.g.,
to facilitate noise reduction. In the recent years, the problem has
been tackled using distributed microphone arrays (DMA). A common
approach is to apply direction-of-arrival (DOA) estimation on
each array (denoted as nodes), and then map the DOA estimates to
a location. In practice, however, the individual nodes contain few
microphones, limiting the DOA estimation accuracy and, thereby,
also the localization performance. We investigate a new approach,
where range estimates are also obtained and utilized from each node,
e.g., using time-of-flight cameras. Moreover, we propose an optimal
method for weighting such DOA and range information for audio
localization. Our experiments on both synthetic and real data show
that there is a clear, potential advantage of using the joint audiovisual
localization framework.
OriginalsprogEngelsk
TidsskriftI E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings
Sider (fra-til)454-458
Antal sider5
ISSN1520-6149
DOI
StatusUdgivet - 2015
Begivenhed40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015 - Brisbane, Australien
Varighed: 19 apr. 201524 apr. 2015
Konferencens nummer: 2015

Konference

Konference40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015
Nummer2015
LandAustralien
ByBrisbane
Periode19/04/201524/04/2015

Emneord

  • Localization
  • DOA
  • range
  • optimal weighting
  • distributed microphone arrays
  • time-of-flight camera

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