UM
A Lung Sound Category Recognition Method Based on Wavelet Decomposition and BP Neural Network
Shi, Yan1; Li, Yuqian1; Cai, Maolin2; Zhang, Xiaohua Douglas2
2019
Source PublicationINTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
ISSN1449-2288
Volume15Issue:1Pages:195-207
AbstractIn this paper, a method of characteristic extraction and recognition on lung sounds is given. Wavelet de-noised method is adopted to reduce noise of collected lung sounds and extract wavelet characteristic coefficients of the de-noised lung sounds by wavelet decomposition. Considering the problem that lung sounds characteristic vectors are of high dimensions after wavelet decomposition and reconstruction, a new method is proposed to transform the characteristic vectors from reconstructed signals into reconstructed signal energy. In addition, we use linear discriminant analysis (LDA) to reduce the dimension of characteristic vectors for comparison in order to obtain a more efficient way for recognition. Finally, we use BP neural network to carry out lung sounds recognition where comparatively high-dimensional characteristic vectors and low- dimensional vectors are set as input and lung sounds categories as output with a recognition accuracy of 82.5% and 92.5%.
Keywordlung sound category recognition wavelet de-noising linear discriminant analysis BP neural network
DOI10.7150/ijbs.29863
URLView the original
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics
WOS SubjectBiochemistry & Molecular Biology ; Biology
WOS IDWOS:000453258300018
PublisherIVYSPRING INT PUBL
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Beihang Univ, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China;
2.Univ Macau, Fac Hlth Sci, Taipa, Macao, Peoples R China
Recommended Citation
GB/T 7714
Shi, Yan,Li, Yuqian,Cai, Maolin,et al. A Lung Sound Category Recognition Method Based on Wavelet Decomposition and BP Neural Network[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES,2019,15(1):195-207.
APA Shi, Yan,Li, Yuqian,Cai, Maolin,&Zhang, Xiaohua Douglas.(2019).A Lung Sound Category Recognition Method Based on Wavelet Decomposition and BP Neural Network.INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES,15(1),195-207.
MLA Shi, Yan,et al."A Lung Sound Category Recognition Method Based on Wavelet Decomposition and BP Neural Network".INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES 15.1(2019):195-207.
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