A composite and quasi linear time method for digital plane recognition

  • Authors:
  • Lilian Buzer

  • Affiliations:
  • Laboratory CNRS-UMLV-ESIEE, UMR 8049, ESIEE, Noisy le Grand, France

  • Venue:
  • DGCI'06 Proceedings of the 13th international conference on Discrete Geometry for Computer Imagery
  • Year:
  • 2006

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Abstract

This paper introduces a new method for the naive digital plane recognition problem As efficient as existing alternatives, it is the only method known to the author that also guarantees a quasi linear time complexity in the worst case The approach presented can be used to determine if a set of n points is a naive digital hyperplane in ℤd in O(n log2D) worst case time where D represents the size of a bounding box that encloses the points In addition, the approach succeeds in reducing the naive digital plane recognition problem to a two-dimensional convex optimization program Thus, the solution space is planar and only simple two-dimensional geometrical methods need to be applied during the recognition process The algorithm is a composite of simple techniques based on one-dimensional optimization: Megiddo Oracle for linear programming and two-dimensional discrete geometry.