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Authors: Tomomi Matsumoto 1 ; Mitsuharu Matsumoto 2 and Shuji Hashimoto 1

Affiliations: 1 Waseda University, Japan ; 2 University of Electro-communications, Japan

ISBN: 978-989-8565-25-9

Keyword(s): Simulated Annealing, Parameter Optimization, Noise Reduction, e-filter, Nonlinear Filter, Time-frequency e-filter.

Related Ontology Subjects/Areas/Topics: Design and Implementation of Signal Processing Systems ; Multimedia ; Multimedia Systems and Applications ; Telecommunications

Abstract: Time-Frequency e-filter (TF e-filter) can reduce different types of noise from a single-channel noisy signal while preserving the signal that varies drastically such as a speech signal. It can reduce not only small stationary noise but also large nonstationary noise. However, it has some parameters whose values are set empirically. So far, there are few studies to optimize the parameter of TF e-filter automatically. In this paper, we employ the correlation coefficient of the filter output and the difference between the filter input and output as the evaluation function of the parameter optimization. We also propose an algorithm to set the optimal parameter of TF e-filter automatically. The experimental results show that we can obtain the adequate parameter in TF e-filter automatically by using the proposed method.

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Paper citation in several formats:
Matsumoto, T.; Matsumoto, M. and Hashimoto, S. (2012). Simulated Annealing based Parameter Optimization of Time-frequency e-filter Utilizing Correlation Coefficient.In Proceedings of the International Conference on Signal Processing and Multimedia Applications and Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2012) ISBN 978-989-8565-25-9, pages 237-241. DOI: 10.5220/0004126602370241

@conference{sigmap12,
author={Tomomi Matsumoto. and Mitsuharu Matsumoto. and Shuji Hashimoto.},
title={Simulated Annealing based Parameter Optimization of Time-frequency e-filter Utilizing Correlation Coefficient},
booktitle={Proceedings of the International Conference on Signal Processing and Multimedia Applications and Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2012)},
year={2012},
pages={237-241},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004126602370241},
isbn={978-989-8565-25-9},
}

TY - CONF

JO - Proceedings of the International Conference on Signal Processing and Multimedia Applications and Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2012)
TI - Simulated Annealing based Parameter Optimization of Time-frequency e-filter Utilizing Correlation Coefficient
SN - 978-989-8565-25-9
AU - Matsumoto, T.
AU - Matsumoto, M.
AU - Hashimoto, S.
PY - 2012
SP - 237
EP - 241
DO - 10.5220/0004126602370241

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