Distogram: a translation - and rotation-invariant and scale-covariant signature of a primitive shape

  • Authors:
  • Geehyuk Lee;Misook Sohn

  • Affiliations:
  • Information and Communications University Daejeon, SEOUL 305-380, South Korea;Information and Communications University Daejeon, SEOUL 305-380, South Korea

  • Venue:
  • Second international workshop on Intelligent systems design and application
  • Year:
  • 2002

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Abstract

We propose a new one-dimensional signature of a two-dimensional binary pattern, which we call distogram meaning the histogram of distances between pairs of foreground pixels. A simple test consisting of six roman capital letters is carried out in order to evaluate the discrimination ability of the proposed signature. Also, a pulse-coupled neural network is described as an example of a simple network design that can compute a distogram given a two dimensional binary pattern as an input.