Abstract
Purpose
Diabetic retinopathy (DR) is a retinal pathology and a result of long-term diabetes. It affects the small retinal vessels, producing changes in diameter, width, and tortuosity. DR is the major cause of blindness among working people. Thus, early and accurate diagnosis is greatly important to avoid vision loss.
Methods
In this work, we describe a new system for DR detection using color fundus images. This system is divided into four main parts: first, a preprocessing step is performed to extract the green channel and apply geometrical transformations for data augmentation. Secondly, the retinal vessels are extracted using a new convolutional neural network (CNN). Then, six morphological features are computed from binary segmented vessel images. Finally, five supervised classifiers (SVM, KNN, CART, PLDA, and ANN) are employed for DR classification.
Results
To evaluate our proposed system, we used three public databases: DRIVE, HRF, and Messidor. The experimental results demonstrate that SVM classifier achieved the best performance for binary DR classification on HRF and Messidor datasets, outperforming the state-of-the-art.
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Acknowledgements
The authors thank the Directorate-General of Scientific Research and Technological Development (DGRSDT) for financial assistance towards this research, URL:www.dgrsdt.dz, Algeria.
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Elaouaber, Z.A., Lazouni, M.E.A. & Messadi, M. Retinal vasculature extraction and analysis for diabetic retinopathy recognition. Res. Biomed. Eng. 39, 479–491 (2023). https://doi.org/10.1007/s42600-023-00279-7
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DOI: https://doi.org/10.1007/s42600-023-00279-7