A comparative study of wavelet families for classification of wrist motions
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my.unimap-264072013-07-02T08:32:57Z A comparative study of wavelet families for classification of wrist motions Muthusamy, Hariharan Chong, Yen Fook Sindhu, Ravindran Bukhari, Ilias Sazali, Yaacob, Prof. Dr. hari@unimap.edu.my Discrete wavelet transforms Wrist motions Neural networks Link to publisher's homepage at http://www.elsevier.com/ The selection of most suitable mother wavelet function is still an open research problem in various signal and image processing applications. This paper presents a comparative study of different wavelet families (Daubechies, Symlets, Coiflets, and Biorthogonal) for analysis of wrist motions from electromyography (EMG) signals. EMG signals are decomposed into three levels using discrete wavelet packet transform. From the decomposed EMG signals, root mean square (RMS) value, autoregressive (AR) model coefficients (4th order) and waveform length (WL) are extracted. Two data projection methods such as principal component analysis (PCA) and linear disciminant analysis (LDA) are used to reduce the dimensionality of the extracted features. Probabilistic neural network (PNN) and general regression neural network (GRNN) are employed to classify the different types of wrist motions, which gives a promising accuracy of above 99%. From the analysis, we inferred that 'Biorthogonal' and 'Coiflets' wavelet families are more suitable for accurate classification of EMG signals of different wrist motions. 2013-07-02T08:32:57Z 2013-07-02T08:32:57Z 2012-11 Article Computers and Electrical Engineering, vol. 38(6), 2012, pages 1798-1807 0045-7906 http://www.sciencedirect.com/science/article/pii/S0045790612001656 http://hdl.handle.net/123456789/26407 en Elsevier Ltd. |
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Discrete wavelet transforms Wrist motions Neural networks |
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Discrete wavelet transforms Wrist motions Neural networks Muthusamy, Hariharan Chong, Yen Fook Sindhu, Ravindran Bukhari, Ilias Sazali, Yaacob, Prof. Dr. A comparative study of wavelet families for classification of wrist motions |
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Link to publisher's homepage at http://www.elsevier.com/ |
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hari@unimap.edu.my |
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hari@unimap.edu.my Muthusamy, Hariharan Chong, Yen Fook Sindhu, Ravindran Bukhari, Ilias Sazali, Yaacob, Prof. Dr. |
format |
Article |
author |
Muthusamy, Hariharan Chong, Yen Fook Sindhu, Ravindran Bukhari, Ilias Sazali, Yaacob, Prof. Dr. |
author_sort |
Muthusamy, Hariharan |
title |
A comparative study of wavelet families for classification of wrist motions |
title_short |
A comparative study of wavelet families for classification of wrist motions |
title_full |
A comparative study of wavelet families for classification of wrist motions |
title_fullStr |
A comparative study of wavelet families for classification of wrist motions |
title_full_unstemmed |
A comparative study of wavelet families for classification of wrist motions |
title_sort |
comparative study of wavelet families for classification of wrist motions |
publisher |
Elsevier Ltd. |
publishDate |
2013 |
url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/26407 |
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1643794934371713024 |
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13.209306 |