Diabetic Retinopathy

The dataset consists of color fundus images categorized into five Diabetic Retinopathy (DR) severity levels. The No_DR category, with 1,805 images, represents healthy retinal scans without any signs of DR. The Mild category includes 370 images, showing early signs of microaneurysms, the initial indicators of DR. The Moderate class, comprising 999 images, exhibits more prominent abnormalities such as hemorrhages and exudates, indicating disease progression. The Severe category, with 193 images, contains advanced DR cases with widespread hemorrhages, venous beading, and intraretinal microvascular abnormalities. Finally, the Proliferative_DR class, with 295 images, represents the most severe stage, characterized by neovascularization and an increased risk of vision loss.

本数据集包含按五种糖尿病视网膜病变（Diabetic Retinopathy, DR）严重程度分级的彩色眼底图像。其中无糖尿病视网膜病变组（No_DR）共计1805张图像，代表无任何DR病变迹象的健康视网膜扫描影像。轻度组（Mild）包含370张图像，表现出早期微动脉瘤——DR的初始病变指征。中度组（Moderate）共计999张图像，呈现更为显著的异常特征，如出血与渗出，提示病变已进展。重度组（Severe）包含193张图像，涵盖存在广泛出血、静脉串珠及视网膜内微血管异常的晚期DR病例。最后，增殖性糖尿病视网膜病变组（Proliferative_DR）共计295张图像，代表最严重的病变阶段，其特征为新生血管形成且视力丧失风险显著升高。

搜集汇总

背景与挑战

背景概述

该数据集包含分类为五个糖尿病视网膜病变严重程度的彩色眼底图像，涵盖从健康到增殖性糖尿病视网膜病变的不同阶段。数据集由Siksha O Anusandhan大学提供，总大小为238 MB，采用CC BY 4.0许可。