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Effects of Preprocessing Eye Fundus Images on Appearance Based Glaucoma Classification

  • Jörg Meier
  • Rüdiger Bock
  • Georg Michelson
  • László G. Nyúl
  • Joachim Hornegger
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4673)

Abstract

Early detection of glaucoma is essential for preventing one of the most common causes of blindness. Our research is focused on a novel automated classification system based on image features from fundus photographs which does not depend on structure segmentation or prior expert knowledge. Our new data driven approach that needs no manual assistance achieves an accuracy of detecting glaucomatous retina fundus images compareable to human experts. In this paper, we study image preprocessing methods to provide better input for more reliable automated glaucoma detection. We reduce disease independent variations without removing information that discriminates between images of healthy and glaucomatous eyes. In particular, nonuniform illumination is corrected, blood vessels are inpainted and the region of interest is normalized before feature extraction and subsequent classification. The effect of these steps was evaluated using principal component analysis for dimension reduction and support vector machine as classifier.

Keywords

Glaucoma Retina imaging Digital color fundus photograph Classification Image enhancement 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Jörg Meier
    • 1
  • Rüdiger Bock
    • 1
  • Georg Michelson
    • 2
  • László G. Nyúl
    • 1
  • Joachim Hornegger
    • 1
  1. 1.Institute of Pattern Recognition, University of Erlangen-Nuremberg, Martensstraße 3, 91058 Erlangen 
  2. 2.Department of Ophthalmology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen 

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