Retinal vessel segmentation using multiwavelet kernels and multiscale hierarchical decomposition

Yangfan Wang, Guangrong Ji, Ping Lin, Emanuele Trucco

    Research output: Contribution to journalArticlepeer-review

    97 Citations (Scopus)

    Abstract

    We propose a comprehensive method for segmenting the retinal vasculature in fundus camera images. Our method does not require preprocessing and training and can therefore be used directly on different images sets. We enhance the vessels using matched filtering with multiwavelet kernels (MFMK), separating vessels from clutter and bright, localized features. Noise removal and vessel localization are achieved by a multiscale hierarchical decomposition of the normalized enhanced image. We show a necessary condition to achieve the optimal decomposition and derive the associated value of the scale parameter controlling the amount of details captured. Finally, we obtain a binary map of the vasculature by locally adaptive thresholding, generating a threshold surface based on the vessel edge information extracted by the previous processes. We report experimental results on two public retinal data sets, DRIVE and STARE, demonstrating an excellent performance in comparison with retinal vessel segmentation methods reported recently.
    Original languageEnglish
    Pages (from-to)2117-2133
    Number of pages17
    JournalPattern Recognition
    Volume46
    Issue number8
    DOIs
    Publication statusPublished - Aug 2013

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