A novel sEMG data augmentation based on WGAN-GP

Fabrício Coelho, Milena F. Pinto, Aurélio G. Melo, Gabryel S. Ramos and André L. M. Marcato

Computer Methods in Biomechanics and Biomedical Engineering, 2023, vol. 26, issue 9, 1008-1017

Abstract: The classification of sEMG signals is fundamental in applications that use mechanical prostheses, making it necessary to work with generalist databases that improve the accuracy of those classifications. Therefore, synthetic signal generation can be beneficial in enriching a database to make it more generalist. This work proposes using a variant of generative adversarial networks to produce synthetic biosignals of sEMG. A convolutional neural network (CNN) was used to classify the movements. The results showed good performance with an increase of 4.07% in a set of movement classification accuracy when 200 synthetic samples were included for each movement. We compared our results to other methodologies, such as Magnitude Warping and Scaling. Both methodologies did not have the same performance in the classification.

Date: 2023
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DOI: 10.1080/10255842.2022.2102422

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