A novel machine learning algorithm for finger movement classification from surface electromyogram signals using welch power estimation

Autor: Afroza Sultana, Md Tawhid Islam Opu, Farruk Ahmed, Md Shafiul Alam
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Healthcare Analytics, Vol 5, Iss , Pp 100296- (2024)
Druh dokumentu: article
ISSN: 2772-4425
DOI: 10.1016/j.health.2023.100296
Popis: Electromyogram (EMG) signal monitoring is an effective method for controlling the movements of a prosthetic limb. The classification of the EMG pattern of various finger motions in upper-arm amputees has drawn much attention in recent years to develop algorithms that provide adequate accuracy. However, due to the complexity of EMG data, movement detection is a challenging task. Therefore, an effective model is needed that can accurately process, analyze, and classify various hand and finger movements. This paper proposes a novel algorithm for processing and classifying 15 finger movements from surface EMG signals based on Welch power estimation from frequency analysis. Five time-domain features are extracted and trained with a machine learning classifier to classify 15 single fingers and combined finger gestures from eight healthy subjects. The experimental results show 92.30 % classification accuracy considering data from eight channels which was improved to 94.15 % after selecting two channels as dominating. For performance evaluation, 10-fold cross-validation is used during classification. We demonstrate an average accuracy of 92.35 % with 25 % test data.
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