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Optical Coherence Tomography (OCT) is an emerging medical imaging modality for luminal organ diagnosis. The non-constant rotation speed of optical components in the OCT catheter tip causes rotational distortion in OCT volumetric scanning.…

Convolutional Neural Networks (CNNs) have shown to be powerful medical image segmentation models. In this study, we address some of the main unresolved issues regarding these models. Specifically, training of these models on small medical…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Davood Karimi , Ali Gholipour

This investigation reports on the results of convolutional neural networks developed for the recently introduced PathologicAL Myopia (PALM) dataset, which consists of 1200 fundus images. We propose a new Optic Nerve Head (ONH)-based…

Image and Video Processing · Electrical Eng. & Systems 2020-06-05 Ruben Hemelings , Bart Elen , Matthew B. Blaschko , Julie Jacob , Ingeborg Stalmans , Patrick De Boever

Separating overlapped nuclei is a major challenge in histopathology image analysis. Recently published approaches have achieved promising overall performance on nuclei segmentation; however, their performance on separating overlapped nuclei…

Image and Video Processing · Electrical Eng. & Systems 2021-10-01 Haotian Wang , Aleksandar Vakanski , Changfa Shi , Min Xian

Accurate detection and segmentation of cone cells in the retina are essential for diagnosing and managing retinal diseases. In this study, we used advanced imaging techniques, including confocal and non-confocal split detector images from…

Image and Video Processing · Electrical Eng. & Systems 2024-10-22 Prajol Shrestha , Mikhail Kulyabin , Aline Sindel , Hilde R. Pedersen , Stuart Gilson , Rigmor Baraas , Andreas Maier

Optical Coherence Tomography (OCT) is a novel and effective screening tool for ophthalmic examination. Since collecting OCT images is relatively more expensive than fundus photographs, existing methods use multi-modal learning to complement…

Image and Video Processing · Electrical Eng. & Systems 2023-08-02 Lehan Wang , Weihang Dai , Mei Jin , Chubin Ou , Xiaomeng Li

Primary angle closure glaucoma (PACG) is the leading cause of irreversible blindness among Asian people. Early detection of PACG is essential, so as to provide timely treatment and minimize the vision loss. In the clinical practice, PACG is…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Munan Ning , Cheng Bian , Donghuan Lu , Hong-Yu Zhou , Shuang Yu , Chenglang Yuan , Yang Guo , Yaohua Wang , Kai Ma , Yefeng Zheng

We propose a convolutional neural network for localising the centres of the optic disc (OD) and fovea in ultra-wide field of view scanning laser ophthalmoscope (UWFoV-SLO) images of the retina. Images captured in both reflectance and…

Image and Video Processing · Electrical Eng. & Systems 2020-04-27 Peter Robert Wakeford , Enrico Pellegrini , Gavin Robertson , Michael Verhoek , Alan Duncan Fleming , Jano van Hemert , Ik Siong Heng

Choroidal nevi are common benign pigmented lesions in the eye, with a small risk of transforming into melanoma. Early detection is critical to improving survival rates, but misdiagnosis or delayed diagnosis can lead to poor outcomes.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Mohammadmahdi Eshragh , Emad A. Mohammed , Behrouz Far , Ezekiel Weis , Carol L Shields , Sandor R Ferenczy , Trafford Crump

Accurate extraction of the Region of Interest is critical for successful ocular region-based biometrics. In this direction, we propose a new context-based segmentation approach, entitled Ocular Region Context Network (ORCNet), introducing a…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Diego Rafael Lucio , Luiz A. Zanlorensi , Yandre Maldonado e Gomes da Costa , David Menotti

Purpose: To evaluate Pegasus-OCT, a clinical decision support software for the identification of features of retinal disease from macula OCT scans, across heterogenous populations involving varying patient demographics, device…

Image and Video Processing · Electrical Eng. & Systems 2019-07-12 Kanwal K. Bhatia , Mark S. Graham , Louise Terry , Ashley Wood , Paris Tranos , Sameer Trikha , Nicolas Jaccard

We propose a novel approach to image segmentation based on combining implicit spline representations with deep convolutional neural networks. This is done by predicting the control points of a bivariate spline function whose zero-set…

Image and Video Processing · Electrical Eng. & Systems 2021-03-22 Oliver J. D. Barrowclough , Georg Muntingh , Varatharajan Nainamalai , Ivar Stangeby

Purpose: The optic nerve head (ONH) undergoes complex and deep 3D morphological changes during the development and progression of glaucoma. Optical coherence tomography (OCT) is the current gold standard to visualize and quantify these…

Image and Video Processing · Electrical Eng. & Systems 2022-04-21 Fabian A. Braeu , Alexandre H. Thiéry , Tin A. Tun , Aiste Kadziauskiene , George Barbastathis , Tin Aung , Michaël J. A. Girard

In this study, we propose LDMRes-Net, a lightweight dual-multiscale residual block-based computational neural network tailored for medical image segmentation on IoT and edge platforms. Conventional U-Net-based models face challenges in…

Image and Video Processing · Electrical Eng. & Systems 2023-09-08 Shahzaib Iqbal , Tariq M. Khan , Syed S. Naqvi , Muhammad Usman , Imran Razzak

Purpose: Deep learning methods have shown promising results in the segmentation, and detection of diseases in medical images. However, most methods are trained and tested on data from a single source, modality, organ, or disease type,…

Image and Video Processing · Electrical Eng. & Systems 2025-08-20 Nchongmaje Ndipenocha , Alina Mirona , Kezhi Wanga , Yongmin Li

Glaucoma causes an irreversible damage to retinal nerve fibers which results in vision loss, if undetected in early stage. Therefore, diagnosis of glaucoma in its early stage may prevent further vision loss. In this paper, we propose a…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Shishir Maheshwari , Vivek Kanhangad , Ram Bilas Pachori

Visual field tests (VFT) are pivotal for glaucoma diagnosis and conducted regularly to monitor disease progression. Here we address the question to what degree aggregate VFT measurements such as Visual Field Index (VFI) and Mean Deviation…

Computer Vision and Pattern Recognition · Computer Science 2019-10-11 Stefan Maetschke , Bhavna Antony , Hiroshi Ishikawa , Gadi Wollstein , Joel Schuman , Rahil Garnavi

Primary angle-closure disease (PACD) is a severe retinal disease, which might cause irreversible vision loss. In clinic, accurate identification of angle-closure and localization of the scleral spur's position on anterior segment optical…

Computer Vision and Pattern Recognition · Computer Science 2019-10-24 Chenglang Yuan , Cheng Bian , Hongjian Kang , Shu Liang , Kai Ma , Yefeng Zheng

Background and Objective: Infra-red scanning laser ophthalmoscope (IRSLO) images are akin to colour fundus photographs in displaying the posterior pole and retinal vasculature fine detail. While there are many trained networks readily…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Adam Threlfall , Samuel Gibbon , James Cameron , Tom MacGillivray

Glaucoma is one of the most severe eye diseases, characterized by rapid progression and leading to irreversible blindness. It is often the case that diagnostics is carried out when one's sight has already significantly degraded due to the…

Image and Video Processing · Electrical Eng. & Systems 2022-08-02 Ahmed Al Mahrooqi , Dmitrii Medvedev , Rand Muhtaseb , Mohammad Yaqub
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