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Stage Aware Diagnosis of Diabetic Retinopathy via Ordinal Regression

Published: November 18, 2025 | arXiv ID: 2511.14398v1

By: Saksham Kumar , D Sridhar Aditya , T Likhil Kumar and more

Potential Business Impact:

Spots eye disease early to prevent blindness.

Business Areas:
Image Recognition Data and Analytics, Software

Diabetic Retinopathy (DR) has emerged as a major cause of preventable blindness in recent times. With timely screening and intervention, the condition can be prevented from causing irreversible damage. The work introduces a state-of-the-art Ordinal Regression-based DR Detection framework that uses the APTOS-2019 fundus image dataset. A widely accepted combination of preprocessing methods: Green Channel (GC) Extraction, Noise Masking, and CLAHE, was used to isolate the most relevant features for DR classification. Model performance was evaluated using the Quadratic Weighted Kappa, with a focus on agreement between results and clinical grading. Our Ordinal Regression approach attained a QWK score of 0.8992, setting a new benchmark on the APTOS dataset.

Page Count
7 pages

Category
Computer Science:
CV and Pattern Recognition