Application of support vector machines in detecting hand grasp gestures using a commercially off the shelf wireless myoelectric armband

Farshid Amirabdollahian, Michael L. Walters

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Downloads (Pure)

Abstract

The propose of this study was to assess the feasibility of using support vector machines in analysing myoelectric signals acquired using an off the shelf device, the Myo armband from Thalmic Lab, when performing hand grasp gestures. Participants (n = 26) took part in the study wearing the armband and producing a series of required gestures. Support vector machines were used to train a model using participant training values, and to classify gestures produced by the same participants. Different Kernel functions and electrode combinations were studied. Also we contrasted different lengths of training values versus different lengths for the classification samples. The overall accuracy was 94.9% with data from 8 electrodes, and 72% where only four of the electrodes were used. The linear kernel outperformed the polynomial, and radial basis function. Exploring the number of training samples versus the achieved classification accuracy, results identified acceptable accuracies (> 90%) for training around 2.5s, and recognising grasp with 0.2s of acquired data. The best recognised grasp was the hand closed (97.6%), followed by cylindrical grasp (96.8%), the lateral grasp (93.2%) and tripod (92%). These results allows us to progress to the next stage of work where the Myo armband is used in the context of robot-mediated stroke rehabilitation and also involves more dynamic interactions as well as gross upper arm movements.
Original languageEnglish
Title of host publication2017 International Conference on Rehabilitation Robotics (ICORR)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages111-115
Number of pages5
ISBN (Print)978-1-5386-2297-1
DOIs
Publication statusPublished - 20 Jul 2017
Event2017 International Conference on Rehabilitation Robotics (ICORR) - QEII Center, London, United Kingdom
Duration: 17 Jul 201720 Jul 2017
https://www.ieee-ras.org/component/rseventspro/event/1056-icorr-2017-15th-ieee-international-conference-on-rehabilitation-robotics

Conference

Conference2017 International Conference on Rehabilitation Robotics (ICORR)
Country/TerritoryUnited Kingdom
CityLondon
Period17/07/1720/07/17
Internet address

Keywords

  • Training
  • Kernel
  • Support vector machines
  • Electrodes
  • Wrist
  • Electromyography
  • Performance evaluation

Fingerprint

Dive into the research topics of 'Application of support vector machines in detecting hand grasp gestures using a commercially off the shelf wireless myoelectric armband'. Together they form a unique fingerprint.

Cite this