A proposal method for corner detection with an orthogonal three-direction chain code

  • Authors:
  • Hermilo Sánchez-Cruz

  • Affiliations:
  • Centro de Ciencias Básicas. Universidad Autónoma de Aguascalientes, Aguascalientes, México

  • Venue:
  • ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
  • Year:
  • 2006

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Abstract

Only three set of pattern chain elements to detect corners in irregular shapes are introduced. A code based on three orthogonal change directions, when visiting a contour shape, are used. Previous approaches for detecting corners employ eight different symbols and usually compute angles and maximum curvature. The three basic pattern contour chain elements, founded in this paper, represent changes of direction in the contour curves, requiring few computing power to obtain corners. Also, we have found that the method is independent of shape orientation.