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Fundus Fluorescein Angiography (FFA) is a critical tool for assessing retinal vascular dynamics and aiding in the diagnosis of eye diseases. However, its invasive nature and less accessibility compared to Color Fundus (CF) images pose…

Image and Video Processing · Electrical Eng. & Systems 2024-08-28 Weiyi Zhang , Siyu Huang , Jiancheng Yang , Ruoyu Chen , Zongyuan Ge , Yingfeng Zheng , Danli Shi , Mingguang He

The morphology and hierarchy of the vascular systems are essential for perfusion in supporting metabolism. In human retina, one of the most energy-demanding organs, retinal circulation nourishes the entire inner retina by an intricate…

Image and Video Processing · Electrical Eng. & Systems 2024-02-16 Siyi Chen , Amir H. Kashani , Ji Yi

In this work, we utilize image segmentation to visually identify blood vessels in retinal examination images. This process is typically carried out manually. However, we can employ heuristic methods and machine learning to automate or at…

Image and Video Processing · Electrical Eng. & Systems 2023-09-01 João Henrique Pereira Machado , Gilson Adamczuk Oliveira , Érick Oliveira Rodrigues

Diabetic Retinopathy (DR) is a complication of long-standing, unchecked diabetes and one of the leading causes of blindness in the world. This paper focuses on improved and robust methods to extract some of the features of DR, viz. Blood…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Soham Basu , Sayantan Mukherjee , Ankit Bhattacharya , Anindya Sen

Retinal vessel segmentation is critical for diagnosing ocular conditions, yet current deep learning methods are limited by modality-specific challenges and significant distribution shifts across imaging devices, resolutions, and anatomical…

Image and Video Processing · Electrical Eng. & Systems 2025-03-11 Zixuan Liu , Aaron Honjaya , Yuekai Xu , Yi Zhang , Hefu Pan , Xin Wang , Linda G Shapiro , Sheng Wang , Ruikang K Wang

Retinal vascular segmentation, a widely researched topic in biomedical image processing, aims to reduce the workload of ophthalmologists in treating and detecting retinal disorders. Segmenting retinal vessels presents unique challenges;…

Image and Video Processing · Electrical Eng. & Systems 2025-01-06 Melaku N. Getahun , Oleg Y. Rogov , Dmitry V. Dylov , Andrey Somov , Ahmed Bouridane , Rifat Hamoudi

Among the research efforts to segment the retinal vasculature from fundus images, deep learning models consistently achieve superior performance. However, this data-driven approach is very sensitive to domain shifts. For fundus images, such…

Image and Video Processing · Electrical Eng. & Systems 2023-07-04 Dewei Hu , Xing Yao , Jiacheng Wang , Yuankai K. Tao , Ipek Oguz

The caliber and configuration of retinal blood vessels serve as important biomarkers for various diseases and medical conditions. A thorough analysis of the retinal vasculature requires the segmentation of the blood vessels and their…

Image and Video Processing · Electrical Eng. & Systems 2025-03-13 José Morano , Guilherme Aresta , Hrvoje Bogunović

Reliable segmentation of retinal vessels can be employed as a way of monitoring and diagnosing certain diseases, such as diabetes and hypertension, as they affect the retinal vascular structure. In this work, we propose the Residual Spatial…

Image and Video Processing · Electrical Eng. & Systems 2020-09-21 Changlu Guo , Márton Szemenyei , Yugen Yi , Wei Zhou , Haodong Bian

Automatic clinical diagnosis of retinal diseases has emerged as a promising approach to facilitate discovery in areas with limited access to specialists. Based on the fact that fundus structure and vascular disorders are the main…

Computer Vision and Pattern Recognition · Computer Science 2018-11-05 C. -H. Huck Yang , Fangyu Liu , Jia-Hong Huang , Meng Tian , Hiromasa Morikawa , I-Hung Lin , Yi-Chieh Liu , Hao-Hsiang Yang , Jesper Tegner

Accurate segmentation of retinal vessels is a basic step in Diabetic retinopathy(DR) detection. Most methods based on deep convolutional neural network (DCNN) have small receptive fields, and hence they are unable to capture global context…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Yun Jiang , Ning Tan , Tingting Peng , Hai Zhang

High fidelity segmentation of both macro and microvascular structure of the retina plays a pivotal role in determining degenerative retinal diseases, yet it is a difficult problem. Due to successive resolution loss in the encoding phase…

Image and Video Processing · Electrical Eng. & Systems 2021-10-20 Sharif Amit Kamran , Khondker Fariha Hossain , Alireza Tavakkoli , Stewart Lee Zuckerbrod , Kenton M. Sanders , Salah A. Baker

The appearance and structure of blood vessels in retinal images have an important role in diagnosis of diseases. This paper proposes a method for automatic retinal vessel segmentation. In this work, a novel preprocessing based on local…

Computer Vision and Pattern Recognition · Computer Science 2013-12-31 Saeid Fazli , Sevin Samadi

Retinal Optical Coherence Tomography (OCT), a noninvasive cross-sectional scan of the eye with qualitative 3D visualization of the retinal anatomy is use to study the retinal structure and the presence of pathogens. The advent of the…

Image and Video Processing · Electrical Eng. & Systems 2023-02-28 Nchongmaje Ndipenoch , Alina Miron , Zidong Wang , Yongmin Li

Diabetic Retinopathy (DR) refers to a barrier that takes place in diabetes mellitus damaging the blood vessel network present in the retina. This may endanger the subjects' vision if they have diabetes. It can take some time to perform a DR…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 V. Banupriya , S. Anusuya

Retinal imaging has emerged as a promising method of addressing this challenge, taking advantage of the unique structure of the retina. The retina is an embryonic extension of the central nervous system, providing a direct in vivo window…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Syed Javed , Tariq M. Khan , Abdul Qayyum , Arcot Sowmya , Imran Razzak

Biomedical image segmentation is a critical task in medical diagnosis and treatment planning, enabling precise delineation of anatomical structures and pathological regions. Despite significant advancements, challenges persist due to the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Joao Batista Florindo , Amanda Pontes de Oliveira Ornelas

The analysis of retinal images for the diagnosis of various diseases is one of the emerging areas of research. Recently, the research direction has been inclined towards investigating several changes in retinal blood vessels in subjects…

Image and Video Processing · Electrical Eng. & Systems 2024-12-10 Mehwish Mehmood , Shahzaib Iqbal , Tariq Mahmood Khan , Ivor Spence , Muhammad Fahim

A novel topological segmentation of retinal images represents blood vessels as connected regions in the continuous image plane, having shape-related analytic and geometric properties. This paper presents topological segmentation results…

Computational Geometry · Computer Science 2016-08-05 Martin Brooks

Retinal vessel segmentation is crucial for intelligent ophthalmic diagnosis, yet it faces three major challenges: insufficient multi-scale feature fusion, disruption of contextual continuity, and noise interference. This study proposes a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Xinran Xu , Yuliang Ma , Sifu Cai , Ming Meng , Qiang Lv , Ruoyan Shi