Heart sound classification based on improved MFCC features and convolutional recurrent neural networks

M Deng, T Meng, J Cao, S Wang, J Zhang, H Fan - Neural Networks, 2020 - Elsevier
Heart sound classification plays a vital role in the early detection of cardiovascular disorders,
especially for small primary health care clinics. Despite that much progress has been made …

An open access database for the evaluation of heart sound algorithms

C Liu, D Springer, Q Li, B Moody… - Physiological …, 2016 - iopscience.iop.org
In the past few decades, analysis of heart sound signals (ie the phonocardiogram or PCG),
especially for automated heart sound segmentation and classification, has been widely …

Logistic regression-HSMM-based heart sound segmentation

DB Springer, L Tarassenko… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
The identification of the exact positions of the first and second heart sounds within a
phonocardiogram (PCG), or heart sound segmentation, is an essential step in the automatic …

S1 and S2 heart sound recognition using deep neural networks

TE Chen, SI Yang, LT Ho, KH Tsai… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
Objective: This study focuses on the first (S1) and second (S2) heart sound recognition
based only on acoustic characteristics; the assumptions of the individual durations of S1 and …

Effective heart sound segmentation and murmur classification using empirical wavelet transform and instantaneous phase for electronic stethoscope

VN Varghees, KI Ramachandran - IEEE Sensors Journal, 2017 - ieeexplore.ieee.org
Accurate measurement of heart sound and murmur parameters is of great importance in the
automated analysis of phonocardiogram (PCG) signals. In this paper, we propose a novel …

Efficient heart sound segmentation and extraction using ensemble empirical mode decomposition and kurtosis features

CD Papadaniil… - IEEE journal of biomedical …, 2013 - ieeexplore.ieee.org
An efficient heart sound segmentation (HSS) method that automatically detects the location
of first (S 1) and second (S 2) heart sound and extracts them from heart auscultatory raw …

Heart sound segmentation—An event detection approach using deep recurrent neural networks

E Messner, M Zöhrer, F Pernkopf - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Objective: In this paper, we accurately detect the state-sequence first heart sound (S1)-
systole-second heart sound (S2)-diastole, ie, the positions of S1 and S2, in heart sound …

A robust heart sounds segmentation module based on S-transform

A Moukadem, A Dieterlen, N Hueber… - … Signal Processing and …, 2013 - Elsevier
This paper presents a new module for heart sounds segmentation based on S-transform.
The heart sounds segmentation process segments the PhonoCardioGram (PCG) signal into …

Heart sound segmentation using bidirectional LSTMs with attention

T Fernando, H Ghaemmaghami… - IEEE journal of …, 2019 - ieeexplore.ieee.org
Objective: This paper proposes a novel framework for the segmentation of phonocardiogram
(PCG) signals into heart states, exploiting the temporal evolution of the PCG as well as …

Deep convolutional neural networks for heart sound segmentation

F Renna, J Oliveira, MT Coimbra - IEEE journal of biomedical …, 2019 - ieeexplore.ieee.org
This paper studies the use of deep convolutional neural networks to segment heart sounds
into their main components. The proposed methods are based on the adoption of a deep …