Multi-level basis selection of wavelet packet decomposition tree for heart sound classification.
Wavelet packet transform decomposes a signal into a set of orthonormal bases (nodes) and provides opportunities to select an appropriate set of these bases for feature extraction. In this paper, multi-level basis selection (MLBS) is proposed to preserve the most informative bases of a wavelet packet...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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Elsevier
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30560/ http://psasir.upm.edu.my/id/eprint/30560/1/Multi-level%20basis%20selection%20of%20wavelet%20packet%20decomposition%20tree%20for%20heart%20sound%20classification..pdf |
| _version_ | 1848846712515330048 |
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| author | Safara, Fatemeh C. Doraisamy, Shyamala Azman, Azreen Jantan, Azrul Abdullah Ramaiah, Asri Ranga |
| author_facet | Safara, Fatemeh C. Doraisamy, Shyamala Azman, Azreen Jantan, Azrul Abdullah Ramaiah, Asri Ranga |
| author_sort | Safara, Fatemeh |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Wavelet packet transform decomposes a signal into a set of orthonormal bases (nodes) and provides opportunities to select an appropriate set of these bases for feature extraction. In this paper, multi-level basis selection (MLBS) is proposed to preserve the most informative bases of a wavelet packet decomposition tree through removing less informative bases by applying three exclusion criteria:frequency range, noise frequency, and energy threshold. MLBS achieved an accuracy of 97.56% for
classifying normal heart sound, aortic stenosis, mitral regurgitation, and aortic regurgitation. MLBS is a
promising basis selection to be suggested for signals with a small range of frequencies. |
| first_indexed | 2025-11-15T09:07:04Z |
| format | Article |
| id | upm-30560 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:07:04Z |
| publishDate | 2013 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-305602016-01-28T04:54:41Z http://psasir.upm.edu.my/id/eprint/30560/ Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. Safara, Fatemeh C. Doraisamy, Shyamala Azman, Azreen Jantan, Azrul Abdullah Ramaiah, Asri Ranga Wavelet packet transform decomposes a signal into a set of orthonormal bases (nodes) and provides opportunities to select an appropriate set of these bases for feature extraction. In this paper, multi-level basis selection (MLBS) is proposed to preserve the most informative bases of a wavelet packet decomposition tree through removing less informative bases by applying three exclusion criteria:frequency range, noise frequency, and energy threshold. MLBS achieved an accuracy of 97.56% for classifying normal heart sound, aortic stenosis, mitral regurgitation, and aortic regurgitation. MLBS is a promising basis selection to be suggested for signals with a small range of frequencies. Elsevier 2013-09 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30560/1/Multi-level%20basis%20selection%20of%20wavelet%20packet%20decomposition%20tree%20for%20heart%20sound%20classification..pdf Safara, Fatemeh and C. Doraisamy, Shyamala and Azman, Azreen and Jantan, Azrul and Abdullah Ramaiah, Asri Ranga (2013) Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. Computers in Biology and Medicine, 43 (10). pp. 1407-1414. ISSN 0010-4825; ESSN: 1879-0534 10.1016/j.compbiomed.2013.06.016 English |
| spellingShingle | Safara, Fatemeh C. Doraisamy, Shyamala Azman, Azreen Jantan, Azrul Abdullah Ramaiah, Asri Ranga Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title | Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title_full | Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title_fullStr | Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title_full_unstemmed | Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title_short | Multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| title_sort | multi-level basis selection of wavelet packet decomposition tree for heart sound classification. |
| url | http://psasir.upm.edu.my/id/eprint/30560/ http://psasir.upm.edu.my/id/eprint/30560/ http://psasir.upm.edu.my/id/eprint/30560/1/Multi-level%20basis%20selection%20of%20wavelet%20packet%20decomposition%20tree%20for%20heart%20sound%20classification..pdf |