Optic flow from multi-scale dynamic anchor point attributes

  • Authors:

  • B. J. Janssen;L. M. J. Florack;R. Duits;B. M. ter Haar Romeny

  • Affiliations:

  • Eindhoven University of Technology, Eindhoven, MB, The Netherlands;Eindhoven University of Technology, Eindhoven, MB, The Netherlands;Eindhoven University of Technology, Eindhoven, MB, The Netherlands;Eindhoven University of Technology, Eindhoven, MB, The Netherlands

  • Venue:
  • ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part I
  • Year:
  • 2006

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Abstract

Optic flow describes the apparent motion that is present in an image sequence. We show the feasibility of obtaining optic flow from dynamic properties of a sparse set of multi-scale anchor points. Singular points of a Gaussian scale space image are identified as feasible anchor point candidates and analytical expressions describing their dynamic properties are presented. Advantages of approaching the optic flow estimation problem using these anchor points are that (i) in these points the notorious aperture problem does not manifest itself, (ii) it combines the strengths of variational and multi-scale methods, (iii) optic flow definition becomes independent of image resolution, (iv) computations of the components of the optic flow field are decoupled and that (v) the feature set inducing the optic flow field is very sparse (typically $