An investigation into neural networks for the detection of exudates in retinal images

Gerald Schaefer*, Edmond Leung

*Corresponding author for this work

    Research output: Chapter in Book/Published conference outputConference publication

    Abstract

    We present an approach of automatically detecting exudates in retinal images using neural networks. Exudates are one of the early indicators of diabetic retinopathy which is known as one of the leading causes for blindness. A neural network is trained to classify whether small image windows are part of exudate areas or not. Furthermore, it is shown that a pre-processing step based on histogram specification in order to deal with varying lighting conditions greatly improves the recognition performance. Application of principal component analysis is used for dimensionality reduction and speed-up of the system. Experimental results were obtained on an image data set with known exudate locations and showed good classification performance with a sensitivity of 94.78% and a specificity of 94.29%.

    Original languageEnglish
    Title of host publicationApplications of soft computing: updating the state of art
    EditorsErel Avineri, Mario Köppen, et al
    Place of PublicationBerlin (DE)
    PublisherSpringer
    Pages169-177
    Number of pages9
    ISBN (Electronic)978-3-540-88079-0
    ISBN (Print)978-3-540-88078-3
    DOIs
    Publication statusPublished - 11 Feb 2009
    Event12th Online World Conference on Soft Computing in Industrial Applications - Online
    Duration: 16 Oct 200726 Oct 2007

    Publication series

    NameAdvances in Soft Computing
    PublisherSpringer
    Volume52
    ISSN (Print)1615-3871
    ISSN (Electronic)1860-0794

    Conference

    Conference12th Online World Conference on Soft Computing in Industrial Applications
    Abbreviated titleWSC12
    Period16/10/0726/10/07

    Keywords

    • diabetic retinopathy
    • exudate detection
    • histogram equalisation/specification
    • neural network
    • principal component analysis

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    • An optimisation approach to palette reordering for indexed image compression

      Schaefer, G. & Nolle, L., 11 Feb 2009, Applications of soft computing: updating the state of art. Avineri, E., Köppen, M. & et al (eds.). Berlin (DE): Springer, Vol. 52. p. 178-185 8 p. (Advances in Soft Computing; vol. 52).

      Research output: Chapter in Book/Published conference outputConference publication

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