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Retinal vessel segmentation is a vital step for the diagnosis of many early eye-related diseases. In this work, we propose a new deep learning model, namely Channel Attention Residual U-Net (CAR-UNet), to accurately segment retinal vascular…

Image and Video Processing · Electrical Eng. & Systems 2020-10-22 Changlu Guo , Márton Szemenyei , Yangtao Hu , Wenle Wang , Wei Zhou , Yugen Yi

Effective retinal vessel segmentation requires a sophisticated integration of global contextual awareness and local vessel continuity. To address this challenge, we propose the Graph Capsule Convolution Network (GCC-UNet), which merges…

Image and Video Processing · Electrical Eng. & Systems 2024-09-19 Xinxu Wei , Xi Lin , Haiyun Liu , Shixuan Zhao , Yongjie Li

We develop a connection sensitive attention U-Net(CSAU) for accurate retinal vessel segmentation. This method improves the recent attention U-Net for semantic segmentation with four key improvements: (1) connection sensitive loss that…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 Ruirui Li , Mingming Li , Jiacheng Li , Yating Zhou

Tight-frame, a generalization of orthogonal wavelets, has been used successfully in various problems in image processing, including inpainting, impulse noise removal, super-resolution image restoration, etc. Segmentation is the process of…

Numerical Analysis · Mathematics 2015-03-19 Xiaohao Cai , Raymond Chan , Serena Morigi , Fiorella Sgallari

We present a fully automatic, graph-based technique for extracting the retinal vascular topology -- that is, how different vessels are connected to each other -- given a single color fundus image. Determining this connectivity is very…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Aashis Khanal , Saeid Motevali , Rolando Estrada

The morphologies of vessel-like structures, such as blood vessels and nerve fibres, play significant roles in disease diagnosis, e.g., Parkinson's disease. Deep network-based refinement segmentation methods have recently achieved promising…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Haili Ye , Xiaoqing Zhang , Yan Hu , Huazhu Fu , Jiang Liu

Accurately segmenting blood vessels in retinal fundus images is crucial in the early screening, diagnosing, and evaluating some ocular diseases, yet it poses a nontrivial uncertainty for the segmentation task due to various factors such as…

Image and Video Processing · Electrical Eng. & Systems 2023-06-29 Yuanyuan Peng , Pengpeng Luan , Zixu Zhang

Existing edge-aware camouflaged object detection (COD) methods normally output the edge prediction in the early stage. However, edges are important and fundamental factors in the following segmentation task. Due to the high visual…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Dongyue Sun , Shiyao Jiang , Lin Qi

Due to the lack of automated methods, to diagnose cerebrovascular disease, time-of-flight magnetic resonance angiography (TOF-MRA) is assessed visually, making it time-consuming. The commonly used encoder-decoder architectures for…

Image and Video Processing · Electrical Eng. & Systems 2024-06-21 Syed Farhan Abbas , Nguyen Thanh Duc , Yoonguu Song , Kyungwon Kim , Ekta Srivastava , Boreom Lee

Accurate segmentation of aortic vascular structures is critical for diagnosing and treating cardiovascular diseases.Traditional Transformer-based models have shown promise in this domain by capturing long-range dependencies between vascular…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Zhenxi Zhang , Fuchen Zheng , Adnan Iltaf , Yifei Han , Zhenyu Cheng , Yue Du , Bin Li , Tianyong Liu , Shoujun Zhou

Optical coherence tomography angiography (OCTA) is a novel non-invasive imaging modality for the visualisation of microvasculature in vivo that has encountered broad adoption in retinal research. OCTA potential in the assessment of…

Image and Video Processing · Electrical Eng. & Systems 2020-06-02 Ylenia Giarratano , Eleonora Bianchi , Calum Gray , Andrew Morris , Tom MacGillivray , Baljean Dhillon , Miguel O. Bernabeu

Pathological area segmentation in cardiac magnetic resonance (MR) images plays a vital role in the clinical diagnosis of cardiovascular diseases. Because of the irregular shape and small area, pathological segmentation has always been a…

Image and Video Processing · Electrical Eng. & Systems 2020-11-21 Yuncheng Zhou , Ke Zhang , Xinzhe Luo , Sihan Wang , Xiahai Zhuang

The microvascular invasion (MVI) is a major prognostic factor in hepatocellular carcinoma, which is one of the malignant tumors with the highest mortality rate. The diagnosis of MVI needs discovering the vessels that contain hepatocellular…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Zunlei Feng , Zhonghua Wang , Xinchao Wang , Xiuming Zhang , Lechao Cheng , Jie Lei , Yuexuan Wang , Mingli Song

The precise detection of blood vessels in retinal images is crucial to the early diagnosis of the retinal vascular diseases, e.g., diabetic, hypertensive and solar retinopathies. Existing works often fail in predicting the abnormal areas,…

Image and Video Processing · Electrical Eng. & Systems 2021-09-23 Jun Wang , Yang Zhao , Linglong Qian , Xiaohan Yu , Yongsheng Gao

Objective: Diabetic macular edema (DME) is the leading cause of severe visual impairment in patients with diabetes. Quantification of retinal fluid, particularly intraretinal fluid (IRF) and subretinal fluid (SRF), plays a critical role in…

Image and Video Processing · Electrical Eng. & Systems 2026-04-27 Zijun Lei , Zikang Xu , Liang Zhang , Ge Song , Hanyu Guo , Dan Cao , Yujia Zhou , Qianjin Feng

The 3D volumetric shape of the heart's left ventricle (LV) myocardium (MYO) wall provides important information for diagnosis of cardiac disease and invasive procedure navigation. Many cardiac image segmentation methods have relied on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Meng Ye , Qiaoying Huang , Dong Yang , Pengxiang Wu , Jingru Yi , Leon Axel , Dimitris Metaxas

Automated blood vessel segmentation is vital for biomedical imaging, as vessel changes indicate many pathologies. Still, precise segmentation is difficult due to the complexity of vascular structures, anatomical variations across patients,…

Blood vessel networks in the brain play a crucial role in stroke research, where understanding their topology is essential for analyzing blood flow dynamics. However, extracting detailed topological vessel network information from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Joël Mathys , Andreas Plesner , Jorel Elmiger , Roger Wattenhofer

Vascular structures in the retina contain important information for the detection and analysis of ocular diseases, including age-related macular degeneration, diabetic retinopathy and glaucoma. Commonly used modalities in diagnosis of these…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Erick O. Rodrigues , Aura Conci , Panos Liatsis

Accurate detection of retinal vessels plays a critical role in reflecting a wide range of health status indicators in the clinical diagnosis of ocular diseases. Recently, advances in deep learning have led to a surge in retinal vessel…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Jiawen Liu , Yuanbo Zeng , Jiaming Liang , Yizhen Yang , Yiheng Zhang , Enhui Cai , Xiaoqi Sheng , Hongmin Cai