A novel dimensionality-reduction approach for face recognition

Fengxi Song, Dapeng Zhang, Jingyu Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)


In this paper, we propose a novel dimensionality-reduction method-Fisher discriminant with Schur decomposition (FDS). Similar to Foley-Sammon discriminant analysis (FSD), FDS is an improvement of Fisher discriminant analysis (FDA) in that it eliminates linear dependences among discriminant vectors. In comparison with FSD, FDS is very simple in theory and realization. Experimental results conducted on two benchmark face-image databases, i.e. ORL and AR, demonstrate that FDS is highly effective and efficient in reducing dimensionalities of facial image spaces. Especially when the size of a database is large, FDS can even outperform the state-of-the-art facial feature extraction methods such as the null space method.
Original languageEnglish
Pages (from-to)1683-1687
Number of pages5
Issue number13-15
Publication statusPublished - 1 Aug 2006


  • Dimensionality reduction
  • Face recognition
  • Fisher discriminant analysis
  • Orthogonal discriminant vectors

ASJC Scopus subject areas

  • Computer Science Applications
  • Cognitive Neuroscience
  • Artificial Intelligence

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