Gait identification based on multi-view observations using omnidirectional camera

  • Authors:
  • Kazushige Sugiura;Yasushi Makihara;Yasushi Yagi

  • Affiliations:
  • Osaka University, Ibaraki, Osaka, Japan;Osaka University, Ibaraki, Osaka, Japan;Osaka University, Ibaraki, Osaka, Japan

  • Venue:
  • ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
  • Year:
  • 2007

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Abstract

We propose a method of gait identification based on multiview gait images using an omnidirectional camera. We first transform omnidirectional silhouette images into panoramic ones and obtain a spatio-temporal Gait Silhouette Volume (GSV). Next, we extract frequency-domain features by Fourier analysis based on gait periods estimated by autocorrelation of the GSVs. Because the omnidirectional camera makes it possible to observe a straight-walking person from various views, multiview features can be extracted from the GSVs composed of multi-view images. In an identification phase, distance between a probe and a gallery feature of the same view is calculated, and then these for all views are integrated for matching. Experiments of gait identification including 15 subjects from 5 views demonstrate the effectiveness of the proposed method.