Isothetic Polygonal Approximations of a 2D Object on Generalized Grid

  • Partha Bhowmick
  • Arindam Biswas
  • Bhargab B. Bhattacharya
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3776)

Abstract

Determination of an isothetic polygonal approximation of the outer or inner contour of an object is a challenging problem with numerous applications to pattern recognition and image processing. In this paper, a novel algorithm is presented for constructing the outer (or inner) tight isothetic polygon(s) containing (or filling) an arbitrarily shaped 2D object on a background grid, using a classical labeling technique. The background grid may consist of uniformly or non-uniformly spaced horizontal and vertical lines. Experimental results for both uniform and non-uniform grids of varying sizes have been reported to demonstrate the applicability and efficiency of the proposed algorithm.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Partha Bhowmick
    • 1
  • Arindam Biswas
    • 1
  • Bhargab B. Bhattacharya
    • 2
  1. 1.Computer Science and Technology DepartmentBengal Engineering and Science UniversityShibpur, HowrahIndia
  2. 2.Advanced Computing and Microelectronics UnitIndian Statistical InstituteKolkataIndia

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