Clustering of sEMG signals on real-life activities using fractal dimension and self-organizing maps

Elmer R. Escandon, Christian Flores

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Recent advances in hand classification using noninvasive sensors permit the adequately recognition of movements with high precision. However, these applications in prosthesis are far from reality, since the acquired muscle signals does not meet real-life conditions. As recent databases incorporate these real conditions into their data acquisition protocol, it is necessary to analyze the muscle signal characteristics and evaluate if these could be separated. This paper applies the Higuchi's fractal dimension in two activities of daily living using real-life signals of the triceps brachii from the NinaPro database. The characteristics are first obtained from a feature extraction technique, then clustered using a two-level approach of k-means in a self-organizing map (SOM). The results from intra-subject analysis in 15 individuals show clusterization of the fractal dimension for sEMG signals using three Kmax values. The clusters selection are analyzed using a cluster score based on a similarity index for task identification.

Original languageEnglish
Title of host publicationProceedings of the 2020 IEEE Engineering International Research Conference, EIRCON 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728183671
DOIs
StatePublished - 21 Oct 2020
Event2020 IEEE Engineering International Research Conference, EIRCON 2020 - Lima, Peru
Duration: 21 Oct 202023 Oct 2020

Publication series

NameProceedings of the 2020 IEEE Engineering International Research Conference, EIRCON 2020

Conference

Conference2020 IEEE Engineering International Research Conference, EIRCON 2020
Country/TerritoryPeru
CityLima
Period21/10/2023/10/20

Keywords

  • Fractal Dimension
  • Self-Organizing map
  • k-means
  • real-life signals
  • triceps brachii

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