Optimising recognition rates for subject independent gait pattern classification

Liam Kilmartin, Ronny K. Ibrahim, Eliathamby Ambikairajah, Branko Celler

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

Abstract

This paper describes a study which was carried out to determine an optimally performing classification algorithm for the problem of subject independent gait pattern classification. The study utilised a frequency domain based feature vector based on the concept of cepstral coefficients whose generation methodology was optimised in terms of overall system recognition rates. The performance of a number of both linear and nonlinear classification algorithms including neural network and Support Vector Machines was examined. An optimal recognition rate of 78.4±3.2% was achieved using a "one-versus-all" MLP classier applied to a previously unseen test database of 12 subjects completing ten repetitions of five different human gait patterns including walking on level surfaces, walking up and down stairs and walking up and down ramps.
Original languageEnglish
Title of host publicationIET Irish Signals and System Conference
Subtitle of host publicationISSC 2009
Place of PublicationDublin, Ireland
PublisherInstitution of Engineering and Technology
Number of pages6
ISBN (Print)9781617384622
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventIET Irish Signals and Systems Conference - Dublin, Ireland, Dublin, Ireland
Duration: 10 Jun 200911 Jun 2009

Conference

ConferenceIET Irish Signals and Systems Conference
CountryIreland
CityDublin
Period10/06/0911/06/09

Keywords

  • gait patterns
  • accelerometry
  • ambulatory monitoring
  • feature extraction

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