Adaptive Tri-direction Edge Detection Operators based on the Spiral Architecture

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


We present a general approach to the computation of adaptive tri-directional operators for use on hexagonal pixel-based images, based on the spiral architecture. We show that the use of Gaussian basis functions within the finite element method provides a framework for a systematic design procedure for operators that are adaptive to spiral neighbourhoods through the use of an explicit scale parameter. We evaluate the proposed operators using simulated hexagonal images and provide comparative results with the use of traditional rectangular operators.
Original languageEnglish
Title of host publicationUnknown Host Publication
PublisherIEEE Signal Processing Society
Number of pages4
Publication statusPublished - Sep 2010
Event17th IEEE International Conference on Image Processing (ICIP 2010) - Hong Kong
Duration: 1 Sep 2010 → …


Conference17th IEEE International Conference on Image Processing (ICIP 2010)
Period1/09/10 → …



  • Hexagonal images
  • spiral architecture
  • tri-directional operators
  • adaptive operators
  • image gradient operators
  • feature extraction

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