000196409 001__ 196409
000196409 005__ 20190812205739.0
000196409 020__ $$a978-1-4799-2893-4
000196409 022__ $$a1520-6149
000196409 02470 $$2ISI$$a000343655301091
000196409 037__ $$aCONF
000196409 245__ $$aSource Localization and Tracking in Non-Convex Rooms
000196409 260__ $$bIeee$$c2014$$aNew York
000196409 269__ $$a2014
000196409 300__ $$a5
000196409 336__ $$aConference Papers
000196409 490__ $$aInternational Conference on Acoustics Speech and Signal Processing ICASSP
000196409 520__ $$aWe consider the estimation of the acoustic source position in a known room from recordings by a microphone array. We propose an algorithm that does not require the room to be convex, nor a line-of-sight path between the microphone array and the source to be present. Times of arrival of early echoes are exploited through the image source model, thereby transforming the indoor localization problem to a problem of localizing multiple sources in the free-field. The localized virtual sources are mirrored into the room using the image source method in the reverse direction. Further, we propose an optimization-based algorithm for improving the estimate of the source position. The algorithm minimizes a cost function derived from the geometry of the localization problem. We apply the designed optimization algorithm to track a moving source, and show through numerical simulations that it improves the tracking accuracy when compared with the naive approach.
000196409 6531_ $$aRoom impulse response
000196409 6531_ $$aimage source model
000196409 6531_ $$aindoor localization
000196409 6531_ $$atracking
000196409 6531_ $$anon-convex
000196409 700__ $$aÖçal, Orhan
000196409 700__ $$0244456$$g203497$$aDokmanic, Ivan
000196409 700__ $$aVetterli, Martin$$g107537$$0240184
000196409 7112_ $$dMay 4-9, 2014$$cFlorence, Italy$$a39th International Conference on Acoustics, Speech, and Signal Processing
000196409 773__ $$t2014 Ieee International Conference On Acoustics, Speech And Signal Processing (Icassp)$$q1429-1433
000196409 8564_ $$zn/a$$yn/a$$uhttps://infoscience.epfl.ch/record/196409/files/06853833.pdf$$s722557
000196409 909C0 $$xU10434$$pLCAV$$0252056
000196409 909CO $$ooai:infoscience.tind.io:196409$$qGLOBAL_SET$$pconf$$pIC
000196409 917Z8 $$x203497
000196409 917Z8 $$x217810
000196409 917Z8 $$x217810
000196409 917Z8 $$x222073
000196409 917Z8 $$x190838
000196409 917Z8 $$x190838
000196409 937__ $$aEPFL-CONF-196409
000196409 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000196409 980__ $$aCONF