NDLI: The heart sound de-noising method based on the wavelet packet and local noise estimation

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2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)

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The heart sound de-noising method based on the wavelet packet and local noise estimation

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The heart sound de-noising method based on the wavelet packet and local noise estimation

Content Provider	IEEE Xplore Digital Library
Author	Cai, Xiaobai Yang, Zufu Li, Shoulin
Copyright Year	2015
Description	Author affiliation: China Rehabilitation Research Center, Beijing 100086, China (Cai, Xiaobai; Yang, Zufu; Li, Shoulin)
Abstract	Heart sound is a kind of typical non-stationary weak signal. Heart sounds from clinical settings are unavoidably contaminated by some noise. The noise in heart sounds includes colored noise and white noise. A de-noising method is presented in this paper, which is based on a harmonic wavelet packet and adopts the methods of finding an optimal decomposing under the minimum entropy principle, selecting reasonable decomposing depths and estimating the local noise as de-noising thresholds. The experiment results show that the method is effective.
Starting Page	428
Ending Page	434
File Size	515605
Page Count	7
File Format	PDF
e-ISBN	9781509000227
DOI	10.1109/BMEI.2015.7401543
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart Fluctuations de-noising local noise estimation Noise reduction heart sound Harmonic analysis Wavelet packets harmonic wavelet packet
Content Type	Text
Resource Type	Article

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