Long-term surface EMG monitoring using K-means clustering and compressive sensing

Mohammadreza Balouchestani; Sridhar Krishnan

doi:10.1117/12.2176762

19 May 2015 Long-term surface EMG monitoring using K-means clustering and compressive sensing

Mohammadreza Balouchestani, Sridhar Krishnan

Proceedings Volume 9484, Compressive Sensing IV; 94840Q (2015) https://doi.org/10.1117/12.2176762
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

In this work, we present an advanced K-means clustering algorithm based on Compressed Sensing theory (CS) in combination with the K-Singular Value Decomposition (K-SVD) method for Clustering of long-term recording of surface Electromyography (sEMG) signals. The long-term monitoring of sEMG signals aims at recording of the electrical activity produced by muscles which are very useful procedure for treatment and diagnostic purposes as well as for detection of various pathologies. The proposed algorithm is examined for three scenarios of sEMG signals including healthy person (sEMG-Healthy), a patient with myopathy (sEMG-Myopathy), and a patient with neuropathy (sEMG-Neuropathr), respectively. The proposed algorithm can easily scan large sEMG datasets of long-term sEMG recording. We test the proposed algorithm with Principal Component Analysis (PCA) and Linear Correlation Coefficient (LCC) dimensionality reduction methods. Then, the output of the proposed algorithm is fed to K-Nearest Neighbours (K-NN) and Probabilistic Neural Network (PNN) classifiers in order to calclute the clustering performance. The proposed algorithm achieves a classification accuracy of 99.22%. This ability allows reducing 17% of Average Classification Error (ACE), 9% of Training Error (TE), and 18% of Root Mean Square Error (RMSE). The proposed algorithm also reduces 14% clustering energy consumption compared to the existing K-Means clustering algorithm.

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Mohammadreza Balouchestani and Sridhar Krishnan "Long-term surface EMG monitoring using K-means clustering and compressive sensing", Proc. SPIE 9484, Compressive Sensing IV, 94840Q (19 May 2015); https://doi.org/10.1117/12.2176762

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KEYWORDS

Algorithms

Signal processing

Compressed sensing

Detection theory

Electromyography

Principal component analysis

Associative arrays

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