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153 Results Found

  • Review
  • Open Access
119 Citations
13,586 Views
31 Pages

Retinal Vessels Segmentation Techniques and Algorithms: A Survey

  • Jasem Almotiri,
  • Khaled Elleithy and
  • Abdelrahman Elleithy

23 January 2018

Retinal vessels identification and localization aim to separate the different retinal vasculature structure tissues, either wide or narrow ones, from the fundus image background and other retinal anatomical structures such as optic disc, macula, and...

  • Article
  • Open Access
44 Citations
4,935 Views
24 Pages

An Automated Image Segmentation and Useful Feature Extraction Algorithm for Retinal Blood Vessels in Fundus Images

  • Aws A. Abdulsahib,
  • Moamin A. Mahmoud,
  • Hazleen Aris,
  • Saraswathy Shamini Gunasekaran and
  • Mazin Abed Mohammed

The manual segmentation of the blood vessels in retinal images has numerous limitations. It is very time consuming and prone to human error, particularly with a very twisted structure of the blood vessel and a vast number of retinal images that needs...

  • Article
  • Open Access
4 Citations
3,352 Views
14 Pages

Segmentation of Retinal Blood Vessels Using Focal Attention Convolution Blocks in a UNET

  • Rafael Ortiz-Feregrino,
  • Saul Tovar-Arriaga,
  • Jesus Carlos Pedraza-Ortega and
  • Juvenal Rodriguez-Resendiz

Retinal vein segmentation is a crucial task that helps in the early detection of health problems, making it an essential area of research. With recent advancements in artificial intelligence, we can now develop highly reliable and efficient models fo...

  • Article
  • Open Access
6 Citations
3,716 Views
16 Pages

3 July 2018

In this paper, we present a new unsupervised algorithm for retinal vessels segmentation. The algorithm utilizes a directionally sensitive matched filter bank using a modified Dolph-Chebyshev type II basis function and a new method to combine the matc...

  • Article
  • Open Access
10 Citations
3,632 Views
20 Pages

Impact of Retinal Vessel Image Coherence on Retinal Blood Vessel Segmentation

  • Alqahtani Saeed S,
  • Toufique A. Soomro,
  • Nisar Ahmed Jandan,
  • Ahmed Ali,
  • Muhammad Irfan,
  • Saifur Rahman,
  • Waleed A. Aldhabaan,
  • Abdulrahman Samir Khairallah and
  • Ismail Abuallut

Retinal vessel segmentation is critical in detecting retinal blood vessels for a variety of eye disorders, and a consistent computerized method is required for automatic eye disorder screening. Many methods of retinal blood vessel segmentation are im...

  • Article
  • Open Access
18 Citations
5,614 Views
19 Pages

Impact of Novel Image Preprocessing Techniques on Retinal Vessel Segmentation

  • Toufique A. Soomro,
  • Ahmed Ali,
  • Nisar Ahmed Jandan,
  • Ahmed J. Afifi,
  • Muhammad Irfan,
  • Samar Alqhtani,
  • Adam Glowacz,
  • Ali Alqahtani,
  • Ryszard Tadeusiewicz and
  • Eliasz Kantoch
  • + 1 author

18 September 2021

Segmentation of retinal vessels plays a crucial role in detecting many eye diseases, and its reliable computerized implementation is becoming essential for automated retinal disease screening systems. A large number of retinal vessel segmentation alg...

  • Article
  • Open Access
12 Citations
3,916 Views
14 Pages

Improvement of Retinal Vessel Segmentation Method Based on U-Net

  • Ning Wang,
  • Kefeng Li,
  • Guangyuan Zhang,
  • Zhenfang Zhu and
  • Peng Wang

Retinal vessel segmentation remains a challenging task because the morphology of the retinal vessels reflects the health of a person, which is essential for clinical diagnosis. Therefore, achieving accurate segmentation of the retinal vessel shape ca...

  • Article
  • Open Access
1 Citations
1,956 Views
19 Pages

Retinal vessel segmentation is crucial for diagnosing and monitoring ophthalmic and systemic diseases. Optical Coherence Tomography Angiography (OCTA) enables detailed imaging of the retinal microvasculature, but existing methods for OCTA segmentatio...

  • Article
  • Open Access
5 Citations
2,275 Views
16 Pages

The non-invasive measurement of hemoglobin oxygen saturation (SO2) in retinal vessels is based on spectrophotometry and the absorption spectral characteristics of the tissue. The dual-wavelength retinal images are simultaneously captured via retinal...

  • Article
  • Open Access
88 Citations
7,960 Views
22 Pages

3 September 2019

Automated retinal vessel segmentation technology has become an important tool for disease screening and diagnosis in clinical medicine. However, most of the available methods of retinal vessel segmentation still have problems such as poor accuracy an...

  • Article
  • Open Access
3 Citations
2,630 Views
14 Pages

30 June 2024

Retinal vessel segmentation is crucial for diagnosing and monitoring various eye diseases such as diabetic retinopathy, glaucoma, and hypertension. In this study, we examine how sharpness-aware minimization (SAM) can improve RF-UNet’s generaliz...

  • Article
  • Open Access
10 Citations
2,926 Views
14 Pages

31 March 2024

The structure and function of retinal vessels play a crucial role in diagnosing and treating various ocular and systemic diseases. Therefore, the accurate segmentation of retinal vessels is of paramount importance to assist a clinical diagnosis. U-Ne...

  • Article
  • Open Access
210 Citations
11,152 Views
15 Pages

Dense U-net Based on Patch-Based Learning for Retinal Vessel Segmentation

  • Chang Wang,
  • Zongya Zhao,
  • Qiongqiong Ren,
  • Yongtao Xu and
  • Yi Yu

12 February 2019

Various retinal vessel segmentation methods based on convolutional neural networks were proposed recently, and Dense U-net as a new semantic segmentation network was successfully applied to scene segmentation. Retinal vessel is tiny, and the features...

  • Article
  • Open Access
11 Citations
3,681 Views
14 Pages

31 December 2021

Automatic segmentation and centerline extraction of blood vessels from retinal fundus images is an essential step to measure the state of retinal blood vessels and achieve the goal of auxiliary diagnosis. Combining the information of blood vessel seg...

  • Article
  • Open Access
4 Citations
2,614 Views
15 Pages

Landmark-Assisted Anatomy-Sensitive Retinal Vessel Segmentation Network

  • Haifeng Zhang,
  • Yunlong Qiu,
  • Chonghui Song and
  • Jiale Li

Automatic retinal vessel segmentation is important for assisting clinicians in diagnosing ophthalmic diseases. The existing deep learning methods remain constrained in instance connectivity and thin vessel detection. To this end, we propose a novel a...

  • Article
  • Open Access
9 Citations
2,780 Views
19 Pages

MCPANet: Multiscale Cross-Position Attention Network for Retinal Vessel Image Segmentation

  • Yun Jiang,
  • Jing Liang,
  • Tongtong Cheng,
  • Yuan Zhang,
  • Xin Lin and
  • Jinkun Dong

1 July 2022

Accurate medical imaging segmentation of the retinal fundus vasculature is essential to assist physicians in diagnosis and treatment. In recent years, convolutional neural networks (CNN) are widely used to classify retinal blood vessel pixels for ret...

  • Article
  • Open Access
15 Citations
8,468 Views
18 Pages

14 November 2017

Retinal vessel segmentation is one of the preliminary tasks for developing diagnosis software systems related to various retinal diseases. In this study, a fully automated vessel segmentation system is proposed. Firstly, the vessels are enhanced usin...

  • Article
  • Open Access
2 Citations
2,258 Views
15 Pages

MS-CANet: Multi-Scale Subtraction Network with Coordinate Attention for Retinal Vessel Segmentation

  • Yun Jiang,
  • Wei Yan,
  • Jie Chen,
  • Hao Qiao,
  • Zequn Zhang and
  • Meiqi Wang

30 March 2023

Retinal vessel segmentation is crucial in the diagnosis of certain ophthalmic and cardiovascular diseases. Although U-shaped networks have been widely used for retinal vessel segmentation, most of the improved methods have insufficient feature extrac...

  • Article
  • Open Access
6 Citations
3,775 Views
17 Pages

Retinal Vessel Segmentation Based on Self-Attention Feature Selection

  • Ligang Jiang,
  • Wen Li,
  • Zhiming Xiong,
  • Guohui Yuan,
  • Chongjun Huang,
  • Wenhao Xu,
  • Lu Zhou,
  • Chao Qu,
  • Zhuoran Wang and
  • Yuhua Tong

4 September 2024

Many major diseases can cause changes in the morphology of blood vessels, and the segmentation of retinal blood vessels is of great significance for preventing these diseases. Obtaining complete, continuous, and high-resolution segmentation results i...

  • Article
  • Open Access
48 Citations
7,466 Views
22 Pages

Interactive Blood Vessel Segmentation from Retinal Fundus Image Based on Canny Edge Detector

  • Alexander Ze Hwan Ooi,
  • Zunaina Embong,
  • Aini Ismafairus Abd Hamid,
  • Rafidah Zainon,
  • Shir Li Wang,
  • Theam Foo Ng,
  • Rostam Affendi Hamzah,
  • Soo Siang Teoh and
  • Haidi Ibrahim

24 September 2021

Optometrists, ophthalmologists, orthoptists, and other trained medical professionals use fundus photography to monitor the progression of certain eye conditions or diseases. Segmentation of the vessel tree is an essential process of retinal analysis....

  • Article
  • Open Access
2 Citations
2,028 Views
19 Pages

21 June 2024

Retinal vessel segmentation is critical for diagnosing related diseases in the medical field. However, the complex structure and variable size and shape of retinal vessels make segmentation challenging. To enhance feature extraction capabilities in e...

  • Article
  • Open Access
17 Citations
2,669 Views
12 Pages

DEF-Net: A Dual-Encoder Fusion Network for Fundus Retinal Vessel Segmentation

  • Jianyong Li,
  • Ge Gao,
  • Lei Yang,
  • Yanhong Liu and
  • Hongnian Yu

19 November 2022

The deterioration of numerous eye diseases is highly related to the fundus retinal structures, so the automatic retinal vessel segmentation serves as an essential stage for efficient detection of eye-related lesions in clinical practice. Segmentation...

  • Article
  • Open Access
4 Citations
2,271 Views
19 Pages

22 November 2023

Retinal vessel segmentation plays a critical role in the diagnosis and treatment of various ophthalmic diseases. However, due to poor image contrast, intricate vascular structures, and limited datasets, retinal vessel segmentation remains a long-term...

  • Article
  • Open Access
7 Citations
2,269 Views
18 Pages

3 July 2024

Accurate segmentation of retinal vessels is of great significance for computer-aided diagnosis and treatment of many diseases. Due to the limited number of retinal vessel samples and the scarcity of labeled samples, and since grey theory excels in ha...

  • Article
  • Open Access
4 Citations
2,523 Views
18 Pages

A High-Resolution Network with Strip Attention for Retinal Vessel Segmentation

  • Zhipin Ye,
  • Yingqian Liu,
  • Teng Jing,
  • Zhaoming He and
  • Ling Zhou

1 November 2023

Accurate segmentation of retinal vessels is an essential prerequisite for the subsequent analysis of fundus images. Recently, a number of methods based on deep learning have been proposed and shown to demonstrate promising segmentation performance, e...

  • Article
  • Open Access
27 Citations
4,106 Views
11 Pages

Blood Vessel Segmentation of Retinal Image Based on Dense-U-Net Network

  • Zhenwei Li,
  • Mengli Jia,
  • Xiaoli Yang and
  • Mengying Xu

29 November 2021

The accurate segmentation of retinal blood vessels in fundus is of great practical significance to help doctors diagnose fundus diseases. Aiming to solve the problems of serious segmentation errors and low accuracy in traditional retinal segmentation...

  • Article
  • Open Access
1 Citations
1,081 Views
17 Pages

Efficient Retinal Vessel Segmentation with 78K Parameters

  • Zhigao Zeng,
  • Jiakai Liu,
  • Xianming Huang,
  • Kaixi Luo,
  • Xinpan Yuan and
  • Yanhui Zhu

8 September 2025

Retinal vessel segmentation is critical for early diagnosis of diabetic retinopathy, yet existing deep models often compromise accuracy for complexity. We propose DSAE-Net, a lightweight dual-stage network that addresses this challenge by (1) introdu...

  • Feature Paper
  • Article
  • Open Access
25 Citations
4,943 Views
16 Pages

24 December 2020

Accurate segmentation of retinal blood vessels is a key step in the diagnosis of fundus diseases, among which cataracts, glaucoma, and diabetic retinopathy (DR) are the main diseases that cause blindness. Most segmentation methods based on deep convo...

  • Article
  • Open Access
1,715 Views
24 Pages

A Novel Approach to Retinal Blood Vessel Segmentation Using Bi-LSTM-Based Networks

  • Pere Marti-Puig,
  • Kevin Mamaqi Kapllani and
  • Bartomeu Ayala-Márquez

20 June 2025

The morphology of blood vessels in retinal fundus images is a key biomarker for diagnosing conditions such as glaucoma, hypertension, and diabetic retinopathy. This study introduces a deep learning-based method for automatic blood vessel segmentation...

  • Article
  • Open Access
25 Citations
4,338 Views
22 Pages

17 June 2022

Retinal vessel segmentation is extremely important for risk prediction and treatment of many major diseases. Therefore, accurate segmentation of blood vessel features from retinal images can help assist physicians in diagnosis and treatment. Convolut...

  • Article
  • Open Access
5 Citations
2,732 Views
15 Pages

29 September 2021

The segmentation of retinal vessels is critical for the diagnosis of some fundus diseases. Retinal vessel segmentation requires abundant spatial information and receptive fields with different sizes while existing methods usually sacrifice spatial re...

  • Article
  • Open Access
1,554 Views
24 Pages

Hierarchical Multi-Scale Mamba with Tubular Structure-Aware Convolution for Retinal Vessel Segmentation

  • Tao Wang,
  • Dongyuan Tian,
  • Haonan Zhao,
  • Jiamin Liu,
  • Weijie Wang,
  • Chunpei Li and
  • Guixia Liu

14 August 2025

Retinal vessel segmentation plays a crucial role in diagnosing various retinal and cardiovascular diseases and serves as a foundation for computer-aided diagnostic systems. Blood vessels in color retinal fundus images, captured using fundus cameras,...

  • Article
  • Open Access
8 Citations
3,150 Views
15 Pages

15 September 2021

Segmentation of retinal vessels is a critical step for the diagnosis of some fundus diseases. Methods: To further enhance the performance of vessel segmentation, we propose a method based on a gated skip-connection network with adaptive upsampling (G...

  • Article
  • Open Access
6 Citations
2,447 Views
17 Pages

13 January 2024

Accurate retinal vessel segmentation is a crucial step in the clinical diagnosis and treatment of fundus diseases. Although many efforts have been presented to address the task, the segmentation performance in challenging regions (e.g., collateral ve...

  • Article
  • Open Access
6 Citations
2,863 Views
17 Pages

A Convolutional Autoencoder Approach for Boosting the Specificity of Retinal Blood Vessels Segmentation

  • Natalia Nikoloulopoulou,
  • Isidoros Perikos,
  • Ioannis Daramouskas,
  • Christos Makris,
  • Povilas Treigys and
  • Ioannis Hatzilygeroudis

3 March 2023

Automated retina vessel segmentation of the human eye plays a vital role as it can significantly assist ophthalmologists in identifying many eye diseases, such as diabetes, stroke, arteriosclerosis, cardiovascular disease, and many other human illnes...

  • Article
  • Open Access
2 Citations
1,452 Views
17 Pages

DAF-UNet: Deformable U-Net with Atrous-Convolution Feature Pyramid for Retinal Vessel Segmentation

  • Yongchao Duan,
  • Rui Yang,
  • Ming Zhao,
  • Mingrui Qi and
  • Sheng-Lung Peng

29 April 2025

Segmentation of retinal vessels from fundus images is critical for diagnosing diseases such as diabetes and hypertension. However, the inherent challenges posed by the complex geometries of vessels and the highly imbalanced distribution of thick vers...

  • Article
  • Open Access
3 Citations
1,963 Views
13 Pages

Self-Paced Dual-Axis Attention Fusion Network for Retinal Vessel Segmentation

  • Yueting Shi,
  • Weijiang Wang,
  • Minzhi Yuan and
  • Xiaohua Wang

The segmentation of retinal vessels plays an essential role in the early recognition of ophthalmic diseases in clinics. Increasingly, approaches based on deep learning have been pushing vessel segmentation performance, yet it is still a challenging p...

  • Article
  • Open Access
5 Citations
4,430 Views
17 Pages

4 January 2024

Due to the limitations of traditional retinal blood vessel segmentation algorithms in feature extraction, vessel breakage often occurs at the end. To address this issue, a retinal vessel segmentation algorithm based on a modified U-shaped network is...

  • Article
  • Open Access
15 Citations
5,763 Views
17 Pages

Automated Diagnosis of Diabetic Retinopathy Using Deep Learning: On the Search of Segmented Retinal Blood Vessel Images for Better Performance

  • Mohammad B. Khan,
  • Mohiuddin Ahmad,
  • Shamshul B. Yaakob,
  • Rahat Shahrior,
  • Mohd A. Rashid and
  • Hiroki Higa

Diabetic retinopathy is one of the most significant retinal diseases that can lead to blindness. As a result, it is critical to receive a prompt diagnosis of the disease. Manual screening can result in misdiagnosis due to human error and limited huma...

  • Article
  • Open Access
5 Citations
4,422 Views
18 Pages

Retinal vessel segmentation plays a crucial role in medical image analysis, aiding ophthalmologists in disease diagnosis, monitoring, and treatment guidance. However, due to the complex boundary structure and rich texture features in retinal blood ve...

  • Article
  • Open Access
25 Citations
5,408 Views
14 Pages

29 June 2020

Blood vessel segmentation methods based on deep neural networks have achieved satisfactory results. However, these methods are usually supervised learning methods, which require large numbers of retinal images with high quality pixel-level ground-tru...

  • Article
  • Open Access
4 Citations
1,879 Views
26 Pages

10 September 2024

In medical image analysis, precise retinal vessel segmentation is crucial for diagnosing and managing ocular diseases as the retinal vascular network reflects numerous health indicators. Despite decades of development, challenges such as intricate te...

  • Article
  • Open Access
58 Citations
8,939 Views
16 Pages

2 February 2019

Analysis of retinal fundus images is essential for eye-care physicians in the diagnosis, care and treatment of patients. Accurate fundus and/or retinal vessel maps give rise to longitudinal studies able to utilize multimedia image registration and di...

  • Article
  • Open Access
923 Views
24 Pages

20 May 2025

Artificial intelligence-based biomedical image processing has become an important area of research in recent decades. In this context, one of the most important problems encountered is the close contrast values between the pixels to be segmented in t...

  • Article
  • Open Access
14 Citations
3,117 Views
16 Pages

19 May 2023

Optical coherence tomography angiography (OCTA) provides a detailed visualization of the vascular system to aid in the detection and diagnosis of ophthalmic disease. However, accurately extracting microvascular details from OCTA images remains a chal...

  • Article
  • Open Access
57 Citations
6,435 Views
27 Pages

1 June 2020

Segmentation of retinal blood vessels is the first step for several computer aided-diagnosis systems (CAD), not only for ocular disease diagnosis such as diabetic retinopathy (DR) but also of non-ocular disease, such as hypertension, stroke and cardi...

  • Article
  • Open Access
1 Citations
1,129 Views
27 Pages

Semi-Supervised Retinal Vessel Segmentation Based on Pseudo Label Filtering

  • Zheng Lu,
  • Jiaguang Li,
  • Zhenyu Liu,
  • Qian Cao,
  • Tao Tian,
  • Xianchao Wang and
  • Zanjie Huang

5 September 2025

Retinal vessel segmentation is crucial for analyzing medical images, where symmetry in vascular structures plays a fundamental role in diagnostic accuracy. In recent years, the rapid advancements in deep learning have provided robust tools for predic...

  • Article
  • Open Access
49 Citations
5,383 Views
21 Pages

A Multi-Scale Feature Fusion Method Based on U-Net for Retinal Vessel Segmentation

  • Dan Yang,
  • Guoru Liu,
  • Mengcheng Ren,
  • Bin Xu and
  • Jiao Wang

24 July 2020

Computer-aided automatic segmentation of retinal blood vessels plays an important role in the diagnosis of diseases such as diabetes, glaucoma, and macular degeneration. In this paper, we propose a multi-scale feature fusion retinal vessel segmentati...

  • Article
  • Open Access
11 Citations
3,179 Views
25 Pages

Segmenting Retinal Vessels Using a Shallow Segmentation Network to Aid Ophthalmic Analysis

  • Muhammad Arsalan,
  • Adnan Haider,
  • Ja Hyung Koo and
  • Kang Ryoung Park

Retinal blood vessels possess a complex structure in the retina and are considered an important biomarker for several retinal diseases. Ophthalmic diseases result in specific changes in the retinal vasculature; for example, diabetic retinopathy cause...

  • Article
  • Open Access
1 Citations
1,196 Views
24 Pages

6 August 2025

Retinal vessel segmentation in fundus images is critical for diagnosing microvascular and ophthalmologic diseases. However, the task remains challenging due to significant vessel width variation and low vessel-to-background contrast. To address these...

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