Acoustic feature based unsupervised approach of heart sound event detection

S Das, S Pal, M Mitra - Computers in biology and medicine, 2020 - Elsevier
This paper represents an unsupervised approach to detect the positions of S1, S2 heart
sound events in a Phonocardiogram (PCG) recording. Insufficiency of correctly annotated …

Classifying the heart sound signals using textural‐based features for an efficient decision support system

K Taneja, V Arora, K Verma - Expert Systems, 2023 - Wiley Online Library
Cardiovascular diseases have surpassed cancer as the leading cause of death on the
planet today. Numerous decision‐making systems with computer‐assisted support have …

Wavelet packet entropy for heart murmurs classification

F Safara, S Doraisamy, A Azman… - Advances in …, 2012 - Wiley Online Library
Heart murmurs are the first signs of cardiac valve disorders. Several studies have been
conducted in recent years to automatically differentiate normal heart sounds, from heart …

Classification and evaluation of the severity of tricuspid regurgitation using phonocardiogram

A Rujoie, A Fallah, S Rashidi, ER Khoshnood… - … Signal Processing and …, 2020 - Elsevier
Cardiovascular disorders (CVDs) have attracted a great deal of attention given that they are
one of the most common causes of mortality every year. With early diagnoses, CVDs can be …

Automatic snore sound extraction from sleep sound recordings via auditory image modeling

R Nonaka, T Emoto, UR Abeyratne, O Jinnouchi… - … Signal Processing and …, 2016 - Elsevier
One of humans' auditory abilities is differentiation between sounds with slightly different
frequencies. Recently, the auditory image model (AIM) was developed to numerically …

A robust algorithm for segmentation of phonocardiography signal using tunable quality wavelet transform

PK Jain, AK Tiwari - Journal of Medical and Biological Engineering, 2018 - Springer
Segmentation of the phonocardiography (PCG) signal is of importance for diagnosis of heart
health and the same is recently reported to be done with tunable quality Wavelet transform …

Cumulant-based trapezoidal basis selection for heart sound classification

F Safara - Medical & biological engineering & computing, 2015 - Springer
Past decades witnessed the expansion of linear signal processing methods in numerous
biomedical applications. However, the nonlinear behavior of biomedical signals revived the …

A comparative study of heart sound signal classification based on temporal, spectral and geometric features

N Ibrahim, N Jamal, MNAH Sha'abani… - 2020 IEEE-EMBS …, 2021 - ieeexplore.ieee.org
This paper presents a study of murmur recognition in heart sound signal with different
machine learning algorithms using combined features. The heart sound signal is required to …

Hierarchical fusion in feature and decision space for detection of valvular heart disease using PCG signal

MKM Rahman, AAS Khan… - International Journal of …, 2022 - inderscienceonline.com
Detection of valvular heart disease from phonocardiogram (PCG) signal is an important non-
invasive and low-cost tool that can have a big impact on the healthcare market. We have …

Murmur Detection in PCG signals using DWT Entropy and Feature Clustering

S Varshney, S Singh - 2020 IEEE International Conference on …, 2020 - ieeexplore.ieee.org
Phonocardiogram (PCG) signals, their feature extraction and segmentation to diagnose
several heart disorders and developing detection models is the primary area of research …