Deep learning in the grading of diabetic retinopathy: A review

Autor: Nurul Mirza Afiqah Tajudin, Kuryati Kipli, Muhammad Hamdi Mahmood, Lik Thai Lim, Dayang Azra Awang Mat, Rohana Sapawi, Siti Kudnie Sahari, Kasumawati Lias, Suriati Khartini Jali, Mohammed Enamul Hoque
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: IET Computer Vision, Vol 16, Iss 8, Pp 667-682 (2022)
Druh dokumentu: article
ISSN: 1751-9640
1751-9632
DOI: 10.1049/cvi2.12116
Popis: Abstract Diabetic Retinopathy (DR) grading into different stages of severity continues to remain a challenging issue due to the complexities of the disease. Diabetic Retinopathy grading classifies retinal images to five levels of severity ranging from 0 to 5, which represents No DR, Mild non‐proliferative diabetic retinopathy (NPDR), Moderate NPDR, Severe NPDR, and proliferative diabetic retinopathy. With the advancement of Deep Learning, studies on the application of the Convolutional Neural Network (CNN) in DR grading have been on the rise. High accuracy and sensitivity are the desired outcome of these studies. This paper reviewed recently published studies that employed CNN for DR grading to 5 levels of severity. Various approaches are applied in classifying retinal images which are, (i) by training CNN models to learn the features for each grade and (ii) by detecting and segmenting lesions using information about their location such as microaneurysms, exudates, and haemorrhages. Public and private datasets have been utilised by researchers in classifying retinal images for DR. The performance of the CNN models was measured by accuracy, specificity, sensitivity, and area under the curve. The CNN models and their performance varies for every study. More research into the CNN model is necessary for future work to improve model performance in DR grading. The Inception model can be used as a starting point for subsequent research. It will also be necessary to investigate the attributes that the model uses for grading.
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