Stereovision depth analysis by two-dimensional motion charge memories

  • Authors:
  • José M. López-Valles;Miguel A. Fernández;Antonio Fernández-Caballero

  • Affiliations:
  • Departamento de Ingeniería Eléctrica, Electrónica, Automática y Comunicaciones, Escuela Universitaria Politécnica de Cuenca, Universidad de Castilla-La Mancha, 16071 Cuenc ...;Departamento de Sistemas Informáticos, Escuela Politécnica Superior de Albacete, Universidad de Castilla-La Mancha, 02071 Albacete, Spain;Departamento de Sistemas Informáticos, Escuela Politécnica Superior de Albacete, Universidad de Castilla-La Mancha, 02071 Albacete, Spain and Instituto de Investigación en Inform ...

  • Venue:
  • Pattern Recognition Letters
  • Year:
  • 2007

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Abstract

Several strategies to retrieve depth information from a sequence of images have been described so far. In this paper a method that turns around the existing symbiosis between stereovision and motion is introduced; motion minimizes correspondence ambiguities, and stereovision enhances motion information. The central idea behind our approach is to transpose the spatially defined problem of disparity estimation into the spatial-temporal domain. Motion is analyzed in the original sequences by means of the so-called permanency effect and the disparities are calculated from the resulting two-dimensional motion charge maps. This is an important contribution to the traditional stereovision depth analysis, where disparity is got from the image luminescence. In our approach, disparity is studied from a motion-based persistency charge measure.