A gait classification system using optical flow features

Chih Chang Yu, Chien Hung Cheng, Kuo Chin Fan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Gait classification is an effective and non-intrusive method for human identification. This paper proposes a system to recognize human identity using optical flow features. The distinguishing characteristic of the proposed system is that we only adopt optical flow information and do not consider shape features or other information. The moving object is detected and located from the flow field using a gaussian model. Afterwards, each subject is identified via the established histogram using optical flow features. The proposed system applies and compares three different kinds of optical flow extraction algorithms. Various experiments with two different databases analyzed and discussed the feasibility of the approach. This work demonstrates that optical flow information is useful for gait classification even for unstable optical flows.

Original languageEnglish
Pages (from-to)179-193
Number of pages15
JournalJournal of Information Science and Engineering
Issue number1
StatePublished - Jan 2014


  • Gait classification
  • Histogram matching
  • Linear discriminant analysis
  • Optical flow
  • Principle component analysis


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