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Glaucoma is a chronic visual disease that may cause permanent irreversible blindness. Measurement of the cup-to-disc ratio (CDR) plays a pivotal role in the detection of glaucoma in its early stage, preventing visual disparities. Therefore,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Rukhshanda Hussain , Hritam Basak

One of the important parameters for the assessment of glaucoma is optic nerve head (ONH) evaluation, which usually involves depth estimation and subsequent optic disc and cup boundary extraction. Depth is usually obtained explicitly from…

Image and Video Processing · Electrical Eng. & Systems 2020-07-16 Sharath M Shankaranarayana , Keerthi Ram , Kaushik Mitra , Mohanasankar Sivaprakasam

With the advancement of powerful image processing and machine learning techniques, CAD has become ever more prevalent in all fields of medicine including ophthalmology. Since optic disc is the most important part of retinal fundus image for…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Muhammad Naseer Bajwa , Muhammad Imran Malik , Shoaib Ahmed Siddiqui , Andreas Dengel , Faisal Shafait , Wolfgang Neumeier , Sheraz Ahmed

Glaucoma is an eye disease that causes damage to the optic nerve, which can lead to visual loss and permanent blindness. Early glaucoma detection is therefore critical in order to avoid permanent blindness. The estimation of the cup-to-disc…

Image and Video Processing · Electrical Eng. & Systems 2023-11-27 Mehwish Mehmood , Khuram Naveed , Khursheed Aurangzeb , Haroon Ahmed Khan , Musaed Alhussein , Syed Saud Naqvi

Glaucoma is a leading cause of irreversible vision impairment globally and cases are continuously rising worldwide. Early detection is crucial, allowing timely intervention which can prevent further visual field loss. To detect glaucoma,…

Valid segmentation of the optic disc (OD) and optic cup (OC) from fundus photographs is essential for glaucoma screening. Unfortunately, existing deep learning methods do not guarantee clinical validness including star-convexity and nested…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Rimsa Goperma , Rojan Basnet , Liang Zhao

Accurate segmentation of the optic disc from a retinal image is vital to extracting retinal features that may be highly correlated with retinal conditions such as glaucoma. In this paper, we propose a deep-learning based approach capable of…

Image and Video Processing · Electrical Eng. & Systems 2020-10-02 Abdullah Sarhan , Ali Al-KhazÁly , Adam Gorner , Andrew Swift , Jon Rokne , Reda Alhajj , Andrew Crichton

We have developed and trained a convolutional neural network to automatically and simultaneously segment optic disc, fovea and blood vessels. Fundus images were normalised before segmentation was performed to enforce consistency in…

Computer Vision and Pattern Recognition · Computer Science 2017-02-03 Jen Hong Tan , U. Rajendra Acharya , Sulatha V. Bhandary , Kuang Chua Chua , Sobha Sivaprasad

In recent years, deep learning based methods have shown success in essential medical image analysis tasks such as segmentation. Post-processing and refining the results of segmentation is a common practice to decrease the misclassifications…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Ufuk Demir , Atahan Ozer , Yusuf H. Sahin , Gozde Unal

Existing joint optic disc and cup segmentation approaches are developed either in Cartesian or polar coordinate system. However, due to the subtle optic cup, the contextual information exploited from the single domain even by the prevailing…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Qing Liu , Xiaopeng Hong , Wei Ke , Zailiang Chen , Beiji Zou

Optic disc and cup segmentation helps in the diagnosis of glaucoma, myocardial infarction, and diabetic retinopathy. Most deep learning methods developed to perform segmentation tasks are built on top of a U-Net-based model architecture.…

Image and Video Processing · Electrical Eng. & Systems 2024-08-12 Yoga Sri Varshan , Hitesh Gupta Kattamuri , Subin Sahayam , Umarani Jayaraman

Automatic segmentation is essential for the brain tumor diagnosis, disease prognosis, and follow-up therapy of patients with gliomas. Still, accurate detection of gliomas and their sub-regions in multimodal MRI is very challenging due to…

Image and Video Processing · Electrical Eng. & Systems 2022-12-20 Ramy A. Zeineldin , Mohamed E. Karar , Oliver Burgert , Franziska Mathis-Ullrich

For accurate glaucoma diagnosis and monitoring, reliable retinal layer segmentation in OCT images is essential. However, existing 2D segmentation methods often suffer from slice-to-slice inconsistencies due to the lack of contextual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Hyunwoo Kim , Heesuk Kim , Wungrak Choi , Jae-Sang Hyun

We describe a new approach to automated Glaucoma detection in 3D Spectral Domain Optical Coherence Tomography (OCT) optic nerve scans. First, we gathered a unique and diverse multi-ethnic dataset of OCT scans consisting of glaucoma and…

In this paper we give a brief review on the present status of automated detection systems describe for the screening of diabetic retinopathy. We further detail an enhanced detection procedure that consists of two steps. First, a…

Computer Vision and Pattern Recognition · Computer Science 2014-11-04 Balint Antal , Andras Hajdu , Zsuzsanna Maros-Szabo , Zsolt Torok , Adrienne Csutak , Tunde Peto

With the advancements in medical artificial intelligence (AI), fundus image classifiers are increasingly being applied to assist in ophthalmic diagnosis. While existing classification models have achieved high accuracy on specific fundus…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Yuzhuo Zhou , Chi Liu , Sheng Shen , Siyu Le , Liwen Yu , Sihan Ouyang , Zongyuan Ge

With the advancement of deep learning techniques, an increasing number of methods have been proposed for optic disc and cup (OD/OC) segmentation from the fundus images. Clinically, OD/OC segmentation is often annotated by multiple clinical…

Image and Video Processing · Electrical Eng. & Systems 2022-09-20 Junde Wu , Huihui Fang , Dalu Yang , Zhaowei Wang , Wenshuo Zhou , Fangxin Shang , Yehui Yang , Yanwu Xu

Fundus image segmentation on unseen domains is challenging, especially for the over-parameterized deep models trained on the small medical datasets. To address this challenge, we propose a method named Adaptive Feature-fusion Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Jiyuan Zhong , Hu Ke , Ming Yan

Differences in image quality, lighting conditions, and patient demographics pose challenges to automated glaucoma detection from color fundus photography. Brighteye, a method based on Vision Transformer, is proposed for glaucoma detection…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Hui Lin , Charilaos Apostolidis , Aggelos K. Katsaggelos

Large medical image data sets with high dimensionality require substantial amount of computation time for data creation and data processing. This paper presents a novel generalized method that finds optimal image-based feature sets that…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Sohini Roychowdhury