The Color Monogenic Signal: Application to Color Edge Detection and Color Optical Flow

  • Authors:
  • Guillaume Demarcq;Laurent Mascarilla;Michel Berthier;Pierre Courtellemont

  • Affiliations:
  • Laboratoire Mathématiques, Images, Applications (MIA), Université de La Rochelle, La Rochelle Cedex, France 17042;Laboratoire Mathématiques, Images, Applications (MIA), Université de La Rochelle, La Rochelle Cedex, France 17042;Laboratoire Mathématiques, Images, Applications (MIA), Université de La Rochelle, La Rochelle Cedex, France 17042;Laboratoire Mathématiques, Images, Applications (MIA), Université de La Rochelle, La Rochelle Cedex, France 17042

  • Venue:
  • Journal of Mathematical Imaging and Vision
  • Year:
  • 2011

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Abstract

The aim of this paper is to define an extension of the analytic signal for a color image. We generalize the construction of the so-called monogenic signal to mappings with values in the vectorial part of the Clifford algebra 驴5,0. Solving a Dirac equation in this context leads to a multiscale signal (relatively to the Poisson scale-space) which contains both structure and color information. The color monogenic signal can be used in a wide range of applications. Two examples are detailed: the first one concerns a multiscale geometric segmentation with respect to a given color; the second one is devoted to the extraction of the optical flow from moving objects of a given color.