Segmenting Retinal Blood Vessels with Gabor Filter and Automatic Binarization

  • Authors

    • Aziah Ali
    • Aini Hussain
    • Wan Mimi Diyana Wan Zaki
    2018-10-02
    https://doi.org/10.14419/ijet.v7i4.11.20794
  • binarization, blood vessel, Gabor wavelet, retinal image, segmentation.

  • Abstract

    For timely diagnosis of retinal disease, routine retinal monitoring of people with high risk should be put in place. To assist the ophthalmologists in performing retinal analysis efficiently and accurately, numerous studies have been conducted to propose an automated retinal diagnosis system. One of the crucial steps for such a system is accurate detection of retinal blood vessels from retinal image. In this paper, we investigated the use of automatic binarization methods on pre-processed fundus image to detect retinal blood vessels. Three methods for binarization were investigated in this study, namely Otsu’s method, ISODATA and K-means clustering method. The resulting binarized output indicated good detection of large vessels but most of the smaller vessels were left undetected. To address this issue, Gabor wavelet filter was used to enhance the small blood vessel structures before binarization of the filter output. Combining the binary images from both binarization with and without Gabor filter resulted in significant improvement of the overall detection rate of the retinal blood vessels. The proposed method proved to be comparable to other unsupervised techniques in the literature when validated using the publicly available fundus image database, DRIVE.

     

     

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  • How to Cite

    Ali, A., Hussain, A., & Mimi Diyana Wan Zaki, W. (2018). Segmenting Retinal Blood Vessels with Gabor Filter and Automatic Binarization. International Journal of Engineering & Technology, 7(4.11), 163-167. https://doi.org/10.14419/ijet.v7i4.11.20794

    Received date: 2018-10-02

    Accepted date: 2018-10-02

    Published date: 2018-10-02