Fuzzy entropy based nonnegative matrix factorization for muscle synergy extraction

Beth Jelfs*, Ling Li, Chung Tin, Rosa H. M. CHAN

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

6 Citations (Scopus)

Abstract

The concept of muscle synergies has proven to be an effective method for representing patterns of muscle activation. The number of degrees of freedom to be controlled are reduced while also providing a flexible platform for producing detailed movements using synergies as building blocks. It has previously been shown that small components of movement are crucial to producing precise and coordinated movement. Methods which focus on the variance of the data make it possible to overlook these small components in the synergy extraction process. However, algorithms which address the inherent complexity in the neuromuscular system are lacking. To that end we propose a new nonnegative matrix factorization algorithm which employs a cross fuzzy entropy similarity measure, thus, extracting muscle synergies which preserve the complexity of the recorded muscular data. The performance of the proposed algorithm is illustrated on representative EMG data.
Original languageEnglish
Title of host publicationProceedings of 2016 IEEE International Conference on Acoustics, Speech, and Signal Processing
PublisherIEEE
Pages739-743
DOIs
Publication statusPublished - Mar 2016
Event41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - , China
Duration: 20 Mar 201625 Mar 2016

Publication series

NameInternational Conference on Acoustics Speech and Signal Processing ICASSP
PublisherIEEE
ISSN (Print)1520-6149

Conference

Conference41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016
PlaceChina
Period20/03/1625/03/16

Research Keywords

  • EMG
  • Fuzzy Entropy
  • Matrix Factorization
  • Muscle Synergies
  • NMF

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