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Retinal vessel segmentation, as a principal nonintrusive diagnose method for ophthalmology diseases or diabetics, suffers from data scarcity due to requiring pixel-wise labels. In this paper, we proposed a convenient patch-based two-stage…

Image and Video Processing · Electrical Eng. & Systems 2019-06-21 Chengzhi Shi , Jihong Liu , Dali Chen

Semantic segmentation of surgical instruments plays a crucial role in robot-assisted surgery. However, accurate segmentation of cataract surgical instruments is still a challenge due to specular reflection and class imbalance issues. In…

Computer Vision and Pattern Recognition · Computer Science 2019-10-03 Zhen-Liang Ni , Gui-Bin Bian , Xiao-Hu Zhou , Zeng-Guang Hou , Xiao-Liang Xie , Chen Wang , Yan-Jie Zhou , Rui-Qi Li , Zhen Li

Automated segmentation of the vertebral column in Computed Tomography (CT) scans is a prerequisite for pathological assessment and surgical planning. However, state-of-the-art methods, particularly those based on Transformers or large-scale…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 K S Nithurshen , Saurabh J. Shigwan

Accurate retinal vessel (RV) segmentation is a crucial step in the quantitative assessment of retinal vasculature, which is needed for the early detection of retinal diseases and other conditions. Numerous studies have been conducted to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Trung Dang , Huy Hoang Nguyen , Aleksei Tiulpin

Precision in identifying and differentiating micro and macro blood vessels in the retina is crucial for the diagnosis of retinal diseases, although it poses a significant challenge. Current autoencoding-based segmentation approaches…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Rui Yang , Shunpu Zhang

Our research focuses on the critical field of early diagnosis of disease by examining retinal blood vessels in fundus images. While automatic segmentation of retinal blood vessels holds promise for early detection, accurate analysis remains…

Image and Video Processing · Electrical Eng. & Systems 2024-05-14 Fatema Tuj Johora Faria , Mukaffi Bin Moin , Pronay Debnath , Asif Iftekher Fahim , Faisal Muhammad Shah

Automatic analysis of retinal blood images is of vital importance in diagnosis tasks of retinopathy. Segmenting vessels accurately is a fundamental step in analysing retinal images. However, it is usually difficult due to various imaging…

Computer Vision and Pattern Recognition · Computer Science 2019-02-12 Yishuo Zhang , Albert C. S. Chung

Retinal vessel segmentation plays an imaportant role in the field of retinal image analysis because changes in retinal vascular structure can aid in the diagnosis of diseases such as hypertension and diabetes. In recent research, numerous…

Image and Video Processing · Electrical Eng. & Systems 2020-04-09 Changlu Guo , Márton Szemenyei , Yugen Yi , Ying Xue , Wei Zhou , Yangyuan Li

Retinal Vessel Segmentation is important for the diagnosis of various diseases. The research on retinal vessel segmentation focuses mainly on the improvement of the segmentation model which is usually based on U-Net architecture. In our…

Image and Video Processing · Electrical Eng. & Systems 2021-06-01 Enes Sadi Uysal , M. Şafak Bilici , B. Selin Zaza , M. Yiğit Özgenç , Onur Boyar

Retinal imaging serves as a valuable tool for diagnosis of various diseases. However, reading retinal images is a difficult and time-consuming task even for experienced specialists. The fundamental step towards automated retinal image…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Liangzhi Li , Manisha Verma , Yuta Nakashima , Ryo Kawasaki , Hajime Nagahara

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

Although convolutional neural networks (CNNs) are promoting the development of medical image semantic segmentation, the standard model still has some shortcomings. First, the feature mapping from the encoder and decoder sub-networks in the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Yutong Cai , Yong Wang

Retinal vessel segmentation is of great interest for diagnosis of retinal vascular diseases. To further improve the performance of vessel segmentation, we propose IterNet, a new model based on UNet, with the ability to find obscured details…

Image and Video Processing · Electrical Eng. & Systems 2019-12-13 Liangzhi Li , Manisha Verma , Yuta Nakashima , Hajime Nagahara , Ryo Kawasaki

Most state-of-the-art methods for medical image segmentation adopt the encoder-decoder architecture. However, this U-shaped framework still has limitations in capturing the non-local multi-scale information with a simple skip connection. To…

Image and Video Processing · Electrical Eng. & Systems 2023-12-27 Haonan Wang , Peng Cao , Xiaoli Liu , Jinzhu Yang , Osmar Zaiane

In this paper, we present a novel neural network architecture for retinal vessel segmentation that improves over the state of the art on two benchmark datasets, is the first to run in real time on high resolution images, and its small…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 Tim Laibacher , Tillman Weyde , Sepehr Jalali

The state-of-the-art models for medical image segmentation are variants of U-Net and fully convolutional networks (FCN). Despite their success, these models have two limitations: (1) their optimal depth is apriori unknown, requiring…

Image and Video Processing · Electrical Eng. & Systems 2020-01-30 Zongwei Zhou , Md Mahfuzur Rahman Siddiquee , Nima Tajbakhsh , Jianming Liang

Retinal blood vessel segmentation can extract clinically relevant information from fundus images. As manual tracing is cumbersome, algorithms based on Convolution Neural Networks have been developed. Such studies have used small publicly…

Image and Video Processing · Electrical Eng. & Systems 2024-06-24 Jeremiah Fadugba , Patrick Köhler , Lisa Koch , Petru Manescu , Philipp Berens

Retinal vessel segmentation is crucial for diagnosis and assessment of ocular diseases. Notably, segmentation of small retinal vessels has been consistently recognized as a challenging and complex task. To tackle this challenge, we design a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Yuanyuan Peng , Wen Li

Medical image segmentation is a difficult but important task for many clinical operations such as cardiac bi-ventricular volume estimation. More recently, there has been a shift to utilizing deep learning and fully convolutional neural…

Image and Video Processing · Electrical Eng. & Systems 2020-03-17 Jesse Sun , Fatemeh Darbehani , Mark Zaidi , Bo Wang

Automated vascular segmentation on optical coherence tomography angiography (OCTA) is important for the quantitative analyses of retinal microvasculature in neuroretinal and systemic diseases. Despite recent improvements, artifacts continue…

Image and Video Processing · Electrical Eng. & Systems 2021-04-22 Yih-Cherng Lee , Ling Yeung