A Novel Approach for Diabetic Retinopathy Detection Using Sine Cosine Algorithm-Optimized Neural Network Classifier
Keywords:
Diabetic Retinopathy, HOG, LBP, Neural Network, Sine Cosine AlgorithmAbstract
This research introduces a comprehensive methodology for diabetic retinopathy (DR) detection and classification by integrating advanced image processing techniques with machine learning models. The proposed approach consists of several key stages: image acquisition, contrast enhancement, blood vessel extraction, optic disc extraction, lesion candidate extraction, feature extraction, and classification using an optimized neural network. Initially, retinal images are acquired and enhanced using contrast techniques such as Histogram Equalization to improve visibility. Blood vessel extraction is performed using Gabor filtering, which efficiently highlights vessel structures through multi-scale and multi-orientation filters. After vessel extraction, optic disc extraction is carried out to isolate this key anatomical feature, followed by lesion candidate extraction to detect potential DR-related lesions. Feature extraction is then performed using Histogram of Oriented Gradients (HOG) and Local Binary Patterns (LBP), capturing gradient and texture information, respectively. Finally, a neural network classifier, optimized using the Sine Cosine Algorithm (SCA), is employed to classify the severity of DR. The methodology is validated using the DRIVE and FIRE datasets, achieving a maximum classification accuracy of 96.83%, demonstrating the superior performance of the SCA-NN approach over traditional neural network models.
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