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Spatio-temporal Composite-Features for Motion Analysis and Segmentation

  • Raquel Dosil
  • Xosé M. Pardo
  • Xosé R. Fdez-Vidal
  • Antón García
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4179)

Abstract

Motion estimation by means of spatio-temporal energy filters –velocity tuned filters– is known to be robust to noise and aliasing and to allow an easy treatment of the aperture problem. In this paper we propose a motion representation based on the composition of spatio-temporal energy features, i.e., responses of a set of filters in phase quadrature tuned to different scales and orientations. Complex motion patterns are identified by unsupervised cluster analysis of energy features. The integration criterion reflects the degree of alignment of maxima of the features’s amplitude, which is related to phase congruence. The composite-feature representation has been applied to motion segmentation with a geodesic active model both for initialization and image potential definition. We will show that the resulting method is able to handle typical problems, such as partial and total occlusions, large inter-frame displacements, moving background and noise.

Keywords

Motion Pattern Active Model Image Potential Previous Frame Integration Criterion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Raquel Dosil
    • 1
  • Xosé M. Pardo
    • 1
  • Xosé R. Fdez-Vidal
    • 2
  • Antón García
    • 1
  1. 1.Dept. Electrónica e ComputaciónUniversidade de Santiago de CompostelaSantiago de Compostela, A CorunaSpain
  2. 2.Escola Politécnica SuperiorUniv. de Santiago de CompostelaLugoSpain

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