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Retinopathy represents a group of retinal diseases that, if not treated timely, can cause severe visual impairments or even blindness. Many researchers have developed autonomous systems to recognize retinopathy via fundus and optical…

Image and Video Processing · Electrical Eng. & Systems 2021-11-05 Taimur Hassan , Bilal Hassan , Muhammad Usman Akram , Shahrukh Hashmi , Abdel Hakim Taguri , Naoufel Werghi

Automatic segmentation of retinal blood vessels from fundus images plays an important role in the computer aided diagnosis of retinal diseases. The task of blood vessel segmentation is challenging due to the extreme variations in morphology…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Avijit Dasgupta , Sonam Singh

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

Accurate multi-class segmentation is a long-standing challenge in medical imaging, especially in scenarios where classes share strong similarity. Segmenting retinal blood vessels in retinal photographs is one such scenario, in which…

Image and Video Processing · Electrical Eng. & Systems 2021-12-10 Yukun Zhou , Moucheng Xu , Yipeng Hu , Hongxiang Lin , Joseph Jacob , Pearse A. Keane , Daniel C. Alexander

Diseases such as diabetic retinopathy and age-related macular degeneration pose a significant risk to vision, highlighting the importance of precise segmentation of retinal vessels for the tracking and diagnosis of progression. However,…

Image and Video Processing · Electrical Eng. & Systems 2023-09-08 Tariq M. Khan , Muhammad Arsalan , Shahzaib Iqbal , Imran Razzak , Erik Meijering

Retinal fundus photography enhancement is important for diagnosing and monitoring retinal diseases. However, early approaches to retinal image enhancement, such as those based on Generative Adversarial Networks (GANs), often struggle to…

Image and Video Processing · Electrical Eng. & Systems 2024-11-05 Xuanzhao Dong , Wenhui Zhu , Xin Li , Guoxin Sun , Yi Su , Oana M. Dumitrascu , Yalin Wang

Vessel structure is one of the most important parts of the retina which physicians can detect many diseases by analysing its features. Localization of blood vessels in retina images is an important process in medical image analysis. This…

Image and Video Processing · Electrical Eng. & Systems 2024-01-09 Vahid Mohammadi Safarzadeh

Ophthalmological imaging utilizes different imaging systems, such as color fundus, infrared, fluorescein angiography, optical coherence tomography (OCT) or OCT angiography. Multiple images with different modalities or acquisition times are…

Image and Video Processing · Electrical Eng. & Systems 2022-01-10 Aline Sindel , Bettina Hohberger , Sebastian Fassihi Dehcordi , Christian Mardin , Robert Lämmer , Andreas Maier , Vincent Christlein

Retinal vessel segmentation is a fundamental step in screening, diagnosis, and treatment of various cardiovascular and ophthalmic diseases. Robustness is one of the most critical requirements for practical utilization, since the test images…

Image and Video Processing · Electrical Eng. & Systems 2021-09-29 Xu Sun , Huihui Fang , Yehui Yang , Dongwei Zhu , Lei Wang , Junwei Liu , Yanwu Xu

With development of information technology and necessity for high security, using different identification methods has become very important. Each biometric feature has its own advantages and disadvantages and choosing each of them depends…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Ali Noori

Accurate segmentation of the blood vessels of the retina is an important step in clinical diagnosis of ophthalmic diseases. Many deep learning frameworks have come up for retinal blood vessels segmentation tasks. However, the complex…

Image and Video Processing · Electrical Eng. & Systems 2022-04-08 Ting Zhang , Jun Li , Yi Zhao , Nan Chen , Han Zhou , Hongtao Xu , Zihao Guan , Changcai Yang , Lanyan Xue , Riqing Chen , Lifang Wei

Extracting blood vessels from retinal fundus images plays a decisive role in diagnosing the progression in pertinent diseases. In medical image analysis, vessel extraction is a semantic binary segmentation problem, where blood vasculature…

Image and Video Processing · Electrical Eng. & Systems 2022-03-21 Kundan Kumar , Sumanshu Agarwal

Noisy data and the similarity in the ocular appearances caused by different ophthalmic pathologies pose significant challenges for an automated expert system to accurately detect retinal diseases. In addition, the lack of knowledge…

Image and Video Processing · Electrical Eng. & Systems 2021-10-20 Sharif Amit Kamran , Alireza Tavakkoli , Stewart Lee Zuckerbrod

The retinal vascular condition is a reliable biomarker of several ophthalmologic and cardiovascular diseases, so automatic vessel segmentation may be crucial to diagnose and monitor them. In this paper, we propose a novel method that…

Image and Video Processing · Electrical Eng. & Systems 2018-12-21 Américo Oliveira , Sérgio Pereira , Carlos A. Silva

Diabetic retinopathy is an eye-related pathology creating abnormalities and causing visual impairment, proper treatment of which requires identifying irregularities. This research uses a hemorrhage detection method and compares…

Image and Video Processing · Electrical Eng. & Systems 2022-06-03 Tamoor Aziz , Chalie Charoenlarpnopparut , Srijidtra Mahapakulchai

The detection of vascular structures from noisy images is a fundamental process for extracting meaningful information in many applications. Most well-known vascular enhancing techniques often rely on Hessian-based filters. This paper…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Haifa F. Alhasson , Shuaa S. Alharbi , Boguslaw Obara

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

Existing supervised approaches didn't make use of the low-level features which are actually effective to this task. And another deficiency is that they didn't consider the relation between pixels, which means effective features are not…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Boheng Zhang , Shenglei Huang , Shaohan Hu

Demographic studies suggest that changes in the retinal vasculature geometry, especially in vessel width, are associated with the incidence or progression of eye-related or systemic diseases. To date, the main information source for width…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Fatmatulzehra Uslu , Anil Anthony Bharath

Retinal blood vessels are considered to be the reliable diagnostic biomarkers of ophthalmologic and diabetic retinopathy. Monitoring and diagnosis totally depends on expert analysis of both thin and thick retinal vessels which has recently…

Image and Video Processing · Electrical Eng. & Systems 2019-12-24 Waseem Abbas , Muhammad Haroon Shakeel , Numan Khurshid , Murtaza Taj