Lung Sound Noise Reduction Using Gabor Time-Frequency Masking

被引：0
|
作者：
Saatci, E. [1 ]
Akan, A. [2 ]
机构：
[1] Istanbul Kultur Univ, Dept Elect Engn, Istanbul, Turkey
[2] Istanbul Univ, Dept Elect & Elect Engn, Istanbul, Turkey
来源：
WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006, VOL 14, PTS 1-6 | 2007年 / 14卷
关键词：
Lung sound; lung sound signal processing; heart sound reduction; gabor expansion; time-frequency filtering;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The Gabor expansion is a mathematical tool, which provides a joint time-frequency representation of a given signal by decomposing it into time-frequency elementary signals called Gabor atoms. It has been used in a variety of signal processing applications, including biomedical signal processing. In this paper we present a time-frequency masking technique based on Gabor expansion for both heart sound localization and reduction problem. Gabor coefficients of lung sound segments recorded from trachea are calculated and masked to remove the distinctive heart sound effects. Reconstruction of lung sound is achieved from modified Gabor coefficients without heart sound noise.
引用
收藏
页码：971 / +
页数：2
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