In this paper we propose a method for reconstructing the 2D geometry of the surrounding environment based on the signals acquired by a fixed microphone, when a series of acoustic stimula are produced in different positions in space. After estimating the Times Of Arrival (TOAs) of the reflective paths, we turn each TOA into a projective geometric constraint that can be used for determining the locations of the reflectors. The result consists of a collection of planar surfaces that correspond to the reflectors’ locations. In this paper we present the whole processing chain and prove its effectiveness through experimental results.

Geometric reconstruction of the environment from its response to multiple acoustic emissions

ANTONACCI, FABIO;SARTI, AUGUSTO;TUBARO, STEFANO
2010-01-01

Abstract

In this paper we propose a method for reconstructing the 2D geometry of the surrounding environment based on the signals acquired by a fixed microphone, when a series of acoustic stimula are produced in different positions in space. After estimating the Times Of Arrival (TOAs) of the reflective paths, we turn each TOA into a projective geometric constraint that can be used for determining the locations of the reflectors. The result consists of a collection of planar surfaces that correspond to the reflectors’ locations. In this paper we present the whole processing chain and prove its effectiveness through experimental results.
2010
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
9781424442959
Acoustic scene reconstruction; microphone arrays; geometrical acoustics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/582169
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