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Glaucoma is a progressive eye disease that leads to optic nerve damage, causing irreversible vision loss if left untreated. Optical coherence tomography (OCT) has become a crucial tool for glaucoma diagnosis, offering high-resolution 3D…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Roshan Kenia , Anfei Li , Rishabh Srivastava , Kaveri A. Thakoor

Retinal optical coherence tomography (OCT) and OCT angiography (OCTA) suffer from the degeneration of image quality due to speckle noise and bulk-motion noise, respectively. Because the cross-sectional retina has distinct features in OCT…

图像与视频处理 · 电气工程与系统科学 2020-02-19 Jianlong Yang , Yan Hu , Liyang Fang , Jun Cheng , Jiang Liu

Purpose: To assess whether the three-dimensional (3D) structural configuration of the central retinal vessel trunk and its branches (CRVT&B) could be used as a diagnostic marker for glaucoma. Method: We trained a deep learning network to…

Accurate vascular segmentation is essential for coronary visualization and the diagnosis of coronary heart disease. This task involves the extraction of sparse tree-like vascular branches from the volumetric space. However, existing methods…

图像与视频处理 · 电气工程与系统科学 2025-04-21 Bowen Liu , Chunlei Meng , Wei Lin , Hongda Zhang , Ziqing Zhou , Zhongxue Gan , Chun Ouyang

Artificial intelligence (AI) classification holds promise as a novel and affordable screening tool for clinical management of ocular diseases. Rural and underserved areas, which suffer from lack of access to experienced ophthalmologists may…

定量方法 · 定量生物学 2019-06-19 Minhaj Alam , David Le , Jennifer I. Lim , R. V. P. Chan , Xincheng Yao

3D to 2D retinal vessel segmentation is a challenging problem in Optical Coherence Tomography Angiography (OCTA) images. Accurate retinal vessel segmentation is important for the diagnosis and prevention of ophthalmic diseases. However,…

图像与视频处理 · 电气工程与系统科学 2021-12-17 Zhuojie Wu , Zijian Wang , Wenxuan Zou , Fan Ji , Hao Dang , Wanting Zhou , Muyi Sun

OCTA is a crucial non-invasive imaging technique for diagnosing and monitoring retinal diseases like diabetic retinopathy, age-related macular degeneration, and glaucoma. Current 2D-based methods for retinal vessel (RV) segmentation offer…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Chuang Liu , Nan Guo

Personalized 3D vascular models can aid in a range of diagnostic, prognostic, and treatment-planning tasks relevant to cardiovascular disease management. Deep learning provides a means to obtain such models automatically from image data.…

图像与视频处理 · 电气工程与系统科学 2024-08-20 Patryk Rygiel , Dieuwertje Alblas , Christoph Brune , Kak Khee Yeung , Jelmer M. Wolterink

The lack of efficient segmentation methods and fully-labeled datasets limits the comprehensive assessment of optical coherence tomography angiography (OCTA) microstructures like retinal vessel network (RVN) and foveal avascular zone (FAZ),…

图像与视频处理 · 电气工程与系统科学 2026-02-04 Peng Xiao , Xiaodong Hu , Ke Ma , Gengyuan Wang , Ziqing Feng , Yuancong Huang , Jin Yuan

The area of the foveal avascular zone (FAZ) from en face images of optical coherence tomography angiography (OCTA) is one of the most common measurement based on this technology. However, its use in clinic is limited by the high variation…

图像与视频处理 · 电气工程与系统科学 2021-12-07 Giovanni Ometto , Giovanni Montesano , Usha Chakravarthy , Frank Kee , Ruth E. Hogg , David P. Crabb

Coronary angiography is the gold standard imaging technique for studying and diagnosing coronary artery disease. However, the resulting 2D X-ray projections lose 3D information and exhibit visual ambiguities. In this work, we aim to…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Yifan Wu , Rohit Jena , Mehmet Gulsun , Vivek Singh , Puneet Sharma , James C. Gee

Purpose: (1) To develop a deep learning algorithm to automatically segment structures of the optic nerve head (ONH) and macula in 3D wide-field optical coherence tomography (OCT) scans; (2) To assess whether 3D macula or ONH structures (or…

In medical imaging, there are clinically relevant segmentation tasks where the output mask is a projection to a subset of input image dimensions. In this work, we propose a novel convolutional neural network architecture that can…

图像与视频处理 · 电气工程与系统科学 2021-08-03 Dmitrii Lachinov , Philipp Seeboeck , Julia Mai , Ursula Schmidt-Erfurth , Hrvoje Bogunovic

This study leverages convolutional neural networks to enhance the temporal resolution of 3D angiography in intracranial aneurysms focusing on the reconstruction of volumetric contrast data from sparse and limited projections. Three…

We present a novel approach to reconstruction of 3D cardiac motion from sparse intraoperative data. While existing methods can accurately reconstruct 3D organ geometries from full 3D volumetric imaging, they cannot be used during surgical…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Yihong Chen , Jiancheng Yang , Deniz Sayin Mercadier , Hieu Le , Pascal Fua

Three-dimensional imaging of biological cells is crucial for the investigation of cell biology, provide valuable information to reveal the mechanisms behind pathophysiology of cells and tissues. Recent advances in optical diffraction…

生物物理 · 物理学 2016-03-03 Kyoohyun Kim , Jonghee Yoon , Seungwoo Shin , SangYun Lee , Su-A Yang , YongKeun Park

Our aim was to enhance visual quality and quantitative accuracy of dynamic positron emission tomography (PET)uptake images by improved image reconstruction, using sophisticated sparse penalty models that incorporate both 2D spatial+1D…

计算机视觉与模式识别 · 计算机科学 2019-06-17 Ida Häggström , Yizun Lin , Si Li , Andrzej Krol , Yuesheng Xu , C. Ross Schmidtlein

Optical coherence tomography (OCT) is a non-invasive imaging technology which can provide micrometer-resolution cross-sectional images of the inner structures of the eye. It is widely used for the diagnosis of ophthalmic diseases with…

图像与视频处理 · 电气工程与系统科学 2019-12-10 Donghuan Lu , Morgan Heisler , Da Ma , Setareh Dabiri , Sieun Lee , Gavin Weiguang Ding , Marinko V. Sarunic , Mirza Faisal Beg

Computed Tomography (CT) reconstruction is a fundamental component to a wide variety of applications ranging from security, to healthcare. The classical techniques require measuring projections, called sinograms, from a full 180$^\circ$…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Rushil Anirudh , Hyojin Kim , Jayaraman J. Thiagarajan , K. Aditya Mohan , Kyle Champley , Timo Bremer

The segmentation and analysis of coronary arteries from intravascular optical coherence tomography (IVOCT) is an important aspect of diagnosing and managing coronary artery disease. Current image processing methods are hindered by the time…

机器学习 · 计算机科学 2021-04-20 Arjun Balaji , Lachlan Kelsey , Kamran Majeed , Carl Schultz , Barry Doyle