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Two-sample Linear Rank Tests for Efficient Edge Detection in Noisy Images

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2006, 11(4), pp.9-16
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

Lim Dong Hoon 1

1경상대학교

Candidate

ABSTRACT

In this paper we propose Wilcoxon test, Median test and Van der Waerden test such as linear rank tests in two-sample location problem for detecting edges effectively in noisy images. These methods are based on detecting image intensity changes between two pixel neighborhoods using an edge-height model to perform effectively on noisy images. The neighborhood size used here is small and its shape is varied adaptively according to edge orientations. We compare and analysis the performance of these statistical edge detectors on both natural images and synthetic images with and without noise.

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