PSBD-EWT-EGAN: Heart Sound Denoising Using PSBD-EWT and Enhancement Generative Adversarial Network

Jianqiang Hu1, Lin Chen1, Miao Yang1, Shigen Shen2 and Xiao-Zhi Gao3

  1. School of Computer and Information Engineering, Xiamen University of Technology
    361024 Xiamen, P. R. China
    hujianqiang@tsinghua.org.cn, 2322071003@s.xmut.edu.cn, yangmiao1133@gmail.com
  2. School of Information Engineering, Huzhou University
    Huzhou, P. R. China
    shigens@zjhu.edu.cn
  3. School of Computing, University of Eastern Finland
    Kuopio, Finland
    xiao-zhi.gao@uef.fi

Abstract

A heart sound signal (HSS) is sensitive to physiological noise and environmental noise, thereby degrading their quality, which makes the accurate diagnosis of machines or doctors difficult and unreliable. To this end, we present a heart sound denoising method using Parameterless Scale-space Boundary Detection (PSBD)-Empirical Wavelet Transform (EWT) and Enhancement Generative Adversarial Network (EGAN) to remove noises that corrupt HSSs in this paper. First, it introduces PSBD and kurtosis to find boundaries delimiting consecutive EWT modes. And then, it further selects the relevant modes on the Pearson’s correlation coefficient between each of empirical modes and the original signal to reconstruct HSSs. Finally, EGAN is proposed to improve PSBD-EWT’s generalization capacity with regard to different noises. Experimental validation is carried out on PASCAL, MHSDB and WUPHSD databases. The results show that our proposed method achieves significant improvements over state-of-the-art methods. In the case of white Gaussian noise with Signal Noise Ratio (SNR)=5dB, it obtains the best denoising performance under a SNR of 12.53dB and an Root Mean Square Error (RMSE) of 0.034.

Key words

heart sound signals, denoising, empirical wavelet transform, heart sound signal enhancement

Digital Object Identifier (DOI)

https://doi.org/10.2298/CSIS240804005H

Publication information

Volume 22, Issue 1 (January 2025)
Year of Publication: 2025
ISSN: 2406-1018 (Online)
Publisher: ComSIS Consortium

Full text

DownloadAvailable in PDF
Portable Document Format

How to cite

Hu, J., Chen, L., Yang, M., Shen, S., Gao, X.: PSBD-EWT-EGAN: Heart Sound Denoising Using PSBD-EWT and Enhancement Generative Adversarial Network. Computer Science and Information Systems, Vol. 22, No. 1, 239–257. (2025), https://doi.org/10.2298/CSIS240804005H