Lung sound analysis with time-dependent fractal dimensions
type: Item
instance of: scholarly article
title: Lung sound analysis with time-dependent fractal dimensions
zbMATH Open document ID: 0986.37079
DOI: 10.1016/S0960-0779(98)00101-5
author: Luiz P. de Oliveira
author: Waldir L. Roque
author: Ricardo F. Custódio
published in: Chaos, Solitons and Fractals
publication date: 2001-03-20T00:00:00Z
review text: This paper is devoted to the applicability of the time-dependent fractal dimension (TDFD) to lung sound analysis. The authors show that lung sound time series exhibit self-affine structures and, as such, their fractal dimensions can be evaluated according to the critical exponent method (CEM). As a result this analysis gives a very typical pattern for normal lung sounds collected from normal individuals. It has been verified that the dimension remains constant about 1.49 for normal samples. This pattern seems to be quite universal since it was found by the authors independently of individual physical characteristics.
Mathematics Subject Classification ID: 37N25
Mathematics Subject Classification ID: 37C45
Mathematics Subject Classification ID: 92C50
Mathematics Subject Classification ID: 37M10
Mathematics Subject Classification ID: 92C15
zbMATH DE Number: 1532757
zbMATH Keywords: time-dependent fractal dimensions
zbMATH Keywords: pattern
zbMATH Keywords: self-affine structures
zbMATH Keywords: critical exponent method
reviewed by: Messoud Efendiev
MaRDI profile type: Publication
cites work: Q4039736
cites work: Q3135098
full work available at URL: s0960-0779(98)00101-5
OpenAlex ID: W2887458279
description: scientific article; zbMATH DE number 1532757