Geodesic
PSBD-EWT-EGAN: Heart Sound Denoising Using PSBD-EWT and Enhancement Generative Adversarial Network
Computer Science and Information Systems, Tome 22 (2025) no. 1.

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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.
Keywords: heart sound signals, denoising, empirical wavelet transform, heart sound signal enhancement 
@article{CSIS_2025_22_1_a11,
     author = {Jianqiang Hu and Lin Chen and Miao Yang and Shigen Shen and Xiao-Zhi Gao},
     title = {PSBD-EWT-EGAN: {Heart} {Sound} {Denoising} {Using} {PSBD-EWT} and {Enhancement} {Generative} {Adversarial} {Network}},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {2025},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2025_22_1_a11/}
}
TY  - JOUR
AU  - Jianqiang Hu
AU  - Lin Chen
AU  - Miao Yang
AU  - Shigen Shen
AU  - Xiao-Zhi Gao
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JO  - Computer Science and Information Systems
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PB  - mathdoc
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%A Lin Chen
%A Miao Yang
%A Shigen Shen
%A Xiao-Zhi Gao
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%J Computer Science and Information Systems
%D 2025
%V 22
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CSIS_2025_22_1_a11/
%F CSIS_2025_22_1_a11
Jianqiang Hu; Lin Chen; Miao Yang; Shigen Shen; Xiao-Zhi Gao. PSBD-EWT-EGAN: Heart Sound Denoising Using PSBD-EWT and Enhancement Generative Adversarial Network. Computer Science and Information Systems, Tome 22 (2025) no. 1. http://geodesic.mathdoc.fr/item/CSIS_2025_22_1_a11/