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Locating Vessel Centerlines in Retinal Images Using Wavelet Transform: A Multilevel Approach

  • Xinge You
  • Bin Fang
  • Yuan Yan Tang
  • Zhenyu He
  • Jian Huang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3644)

Abstract

Identifying centerlines of vessels in the retinal image is helpful to provide useful information in diagnosis of eye diseases and early signs of systemic disease. This paper presents a novel thinning method based on the wavelet transform with a multilevel scheme. The development of the method is inspired by the favorable characteristics of wavelet transform moduli. Mathematical analysis is given to show that the vessel edge and centerline can be detected efficiently by computing the maxima and minima of wavelet transform moduli. The implementation is performed by applying various scale sizes of the wavelet transform to thin the multiple-pixel-wide ribbon-like vessel gradually to be one-pixel-wide centerline. Experiment results show that the identified centerline of vascular trees are accurate by visual inspection and are useful for further applications.

Keywords

Wavelet Transform Retinal Image Wavelet Function Edge Point Vascular Tree 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Xinge You
    • 1
    • 2
  • Bin Fang
    • 1
    • 3
  • Yuan Yan Tang
    • 1
    • 2
  • Zhenyu He
    • 2
  • Jian Huang
    • 2
  1. 1.Faculty of Mathematics and Computer ScienceHubei UniversityP.R. China
  2. 2.Department of Computer ScienceHong Kong Baptist University 
  3. 3.Chongqing UniversityChongqingP.R. China

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