Naslov
Room Helps: Acoustic Localization with Finite Elements

Autori
Dokmanić, Ivan ; Vetterli, Martin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proc. IEEE International Conference on Acoustics, Speech and Signal Processing, Kyoto, March 2012 / - , 2012

Skup
IEEE International Conference on Acoustics, Speech and Signal Processing

Mjesto i datum
Kyoto, Japan, 25.03.2012. - 30.03.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Source localization; Finite element method; Sparse approximation; Indoor localization; Reverberant localization

Sažetak
Acoustic source localization often relies on the free-space/far-field model. Recent work exploiting spatio-temporal sparsity promises to go beyond these scenarios, however, it requires the knowledge of the transfer functions from each possible source location to each microphone. We propose a method for indoor acoustic source localization in which the physical modeling is implicit. By approximating the wave equation with the finite element method (FEM), we naturally get a sparse recovery formulation of the source localization. We demonstrate how exploiting the bandwidth leads to improved performance and surprising results, such as localization of multiple sources with one microphone, or hearing around corners. Numerical simulation results show the feasibility of such schemes.

Izvorni jezik
Engleski

Znanstvena područja
Matematika, Elektrotehnika, Računarstvo

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