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Title:Uporaba postopka oblikovanja snopa za lokalizacijo zvočnih izvorov s pomočjo akustične kamere : magistrsko delo
Authors:ID Tomazini, Žan (Author)
ID Kačič, Zdravko (Mentor) More about this mentor... New window
Files:.pdf MAG_Tomazini_Zan_2019.pdf (4,71 MB)
MD5: 3357D435DD4D3C7C7CA44E001EFBAD27
PID: 20.500.12556/dkum/67ee4383-aed6-4fa3-8ca2-25c5ea2c4382
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Postopki oblikovanja snopa se v sistemih akustičnih kamer uporabljajo za lokalizacijo zvočnih izvorov in pridobivanje zvočne slike prostora. Večina temelji na preračunavanju TDOA med posameznimi mikrofonskimi pari in izvajanju zamik-in-vsota nad signali. Ena izmed možnosti računanja koordinat izvora je multilateracija, s čimer pa ne dobimo celotne zvočne slike. SRP-PHAT je robusten postopek s katerim oblikujemo snop mikrofonskega polja in ga usmerimo v množico točk v iskalnem prostoru. S tem pridobimo informacijo o moči zvoka in lahko posledično določimo položaj zvočnega izvora. Računanje SRP-PHAT je procesno zahtevno, zato uporabimo SRC kot učinkovit način iskanja globalnega maksimuma.
Keywords:oblikovanje snopa, SRP-PHAT, akustična kamera, lokalizacija zvočnega izvora
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[Ž. Tomazini]
Year of publishing:2019
Number of pages:X, 69 f.
PID:20.500.12556/DKUM-74280 New window
UDC:621.396.963.5(043.2)
COBISS.SI-ID:22840854 New window
NUK URN:URN:SI:UM:DK:W4EEF9YP
Publication date in DKUM:13.11.2019
Views:1243
Downloads:90
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
:
TOMAZINI, Žan, 2019, Uporaba postopka oblikovanja snopa za lokalizacijo zvočnih izvorov s pomočjo akustične kamere : magistrsko delo [online]. Master’s thesis. Maribor : Ž. Tomazini. [Accessed 4 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=74280
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Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:21.08.2019

Secondary language

Language:English
Title:Beamforming for audio source localization implementing acoustic camera
Abstract:Beamforming is used in acoustic camera systems for sound sorce localization and obtaining a full sound image. Most are based on calculating TDOA between different microphone pairs and performing delay-and-sum on captured sound signals. One of the options for calculating sound source coordinates is multilateration which does not give a full sound image. SRP-PHAT is a robust process for microphone array beamforming that can be steered in the direction of points in the search space. With this we obtain sound power information and can consequently pinpoint location of the source. Calculating SRP-PHAT is process power costly therefore we use SRC as an effective way of finding global maximum.
Keywords:beamforming, SRP-PHAT, acoustic camera, sound source localization


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