Inlämning av Examensarbete / Submission of Thesis

Damodar Reddy Naturi , pp. 55. ING/School of Engineering, 2012.

The work

Författare / Author: Damodar Reddy Naturi,
Titel / Title: Intelligent Camera Tracking using SRP-based sound Source localization in frequency domain
Abstrakt Abstract:

The Steered Response Power Phase Transform (SRP-PHAT) is one of the most robust
methods among sound source localization operating in noisy and reverberant environments.
Direction of Arrival (DOA) Estimation has important applications in human computer
interfaces such as video conferencing, speech enhancement and speech recognition.
In this thesis work, SRP-PHAT method has been implemented for 16 element
microphone array arranged into 4 rows and 4 columns in the presence of noise and
reverberation. Computation of TDOA for each pair of microphones in a row setup or a
column setup, generalized cross correlation estimates are calculated and thereby computing
the source position and then by averaging the row wise obtained TDOA values and column
wise obtained TDOA values, best accurate source position can be determined.
Weighted Overlap and Add (WOLA) filter bank is used in SRP-PHAT method to find
the TDOA in frequency domain. Original TDOA's and estimated TDOA's obtained from
SRP-PHAT are compared to analyse the performance of the SRP-PHAT method. Mean
estimation error and Standard deviation are calculated to find the accuracy of the estimated
values of TDOA.

Ämnesord / Subject: Signalbehandling - Signal Processing
Elektroteknik - Electrotechnology
Nyckelord / Keywords: SRP-Phat, acoustics, camera tracking, GCC Phat

Publication info

Dokument id / Document id: houn-8z49az
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 10/15/2012
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: Dr. Nedelko Grbic, Dr. Benny Sällberg & Dr. Ingvar Claesson, &
Examinator / Examiner: Sven Johansson
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
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Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012naturi.pdf (3182 kB, öppnas i nytt fönster)