Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds

Traditionally, the clinical diagnosis of a respiratory disease is made from a careful clinical examination including chest auscultation. Objective analysis and automatic interpretation of the lung sound based on its physical characters are strongly warranted to assist clinical practice. In this pape...

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Main Authors: Ashok Mondal, Parthasarathi Bhattacharya, Goutam Saha
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/182938
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author Ashok Mondal
Parthasarathi Bhattacharya
Goutam Saha
author_facet Ashok Mondal
Parthasarathi Bhattacharya
Goutam Saha
author_sort Ashok Mondal
collection DOAJ
description Traditionally, the clinical diagnosis of a respiratory disease is made from a careful clinical examination including chest auscultation. Objective analysis and automatic interpretation of the lung sound based on its physical characters are strongly warranted to assist clinical practice. In this paper, a new method is proposed to distinguish between the normal and the abnormal subjects using the morphological complexities of the lung sound signals. The morphological embedded complexities used in these experiments have been calculated in terms of texture information (lacunarity), irregularity index (sample entropy), third order moment (skewness), and fourth order moment (Kurtosis). These features are extracted from a mixed data set of 10 normal and 20 abnormal subjects and are analyzed using two different classifiers: extreme learning machine (ELM) and support vector machine (SVM) network. The results are obtained using 5-fold cross-validation. The performance of the proposed method is compared with a wavelet analysis based method. The developed algorithm gives a better accuracy of 92.86% and sensitivity of 86.30% and specificity of 86.90% for a composite feature vector of four morphological indices.
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spelling doaj-art-84aad15ce62c4e75bd7308ba7742fc562025-02-03T00:59:58ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/182938182938Detection of Lungs Status Using Morphological Complexities of Respiratory SoundsAshok Mondal0Parthasarathi Bhattacharya1Goutam Saha2Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, IndiaInstitute of Pulmocare and Research, Kolkata, Kolkata 700 064, IndiaDepartment of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, IndiaTraditionally, the clinical diagnosis of a respiratory disease is made from a careful clinical examination including chest auscultation. Objective analysis and automatic interpretation of the lung sound based on its physical characters are strongly warranted to assist clinical practice. In this paper, a new method is proposed to distinguish between the normal and the abnormal subjects using the morphological complexities of the lung sound signals. The morphological embedded complexities used in these experiments have been calculated in terms of texture information (lacunarity), irregularity index (sample entropy), third order moment (skewness), and fourth order moment (Kurtosis). These features are extracted from a mixed data set of 10 normal and 20 abnormal subjects and are analyzed using two different classifiers: extreme learning machine (ELM) and support vector machine (SVM) network. The results are obtained using 5-fold cross-validation. The performance of the proposed method is compared with a wavelet analysis based method. The developed algorithm gives a better accuracy of 92.86% and sensitivity of 86.30% and specificity of 86.90% for a composite feature vector of four morphological indices.http://dx.doi.org/10.1155/2014/182938
spellingShingle Ashok Mondal
Parthasarathi Bhattacharya
Goutam Saha
Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
The Scientific World Journal
title Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
title_full Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
title_fullStr Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
title_full_unstemmed Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
title_short Detection of Lungs Status Using Morphological Complexities of Respiratory Sounds
title_sort detection of lungs status using morphological complexities of respiratory sounds
url http://dx.doi.org/10.1155/2014/182938
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