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Purpose: We proposed a deep convolutional neural network (CNN), named Retinal Fluid Segmentation Network (ReF-Net) to segment volumetric retinal fluid on optical coherence tomography (OCT) volume. Methods: 3 x 3-mm OCT scans were acquired…

图像与视频处理 · 电气工程与系统科学 2020-10-28 Yukun Guo , Tristan T. Hormel , Honglian Xiong , Jie Wang , Thomas S. Hwang , Yali Jia

Optical coherence tomography (OCT) uses low-coherence reflectometry to obtain cross-sectional images of inhomogeneous media, such as biological tissue. OCT is particularly useful in the biomedical ea, since the imaging can be performed…

医学物理 · 物理学 2018-03-01 Takahisa Mitsui , Kenichiro Aoki

In OCT angiography (OCTA), decorrelation computation has been widely used as a local motion index to identify dynamic flow from static tissues, but its dependence on SNR severely degrades the vascular visibility, particularly in low- SNR…

医学物理 · 物理学 2019-04-16 Luzhe Huang , Yiming Fu , Ruixiang Chen , Shanshan Yang , Haixia Qiu , Xining Wu , Shiyong Zhao , Ying Gu , Peng Li

In Fluorescein Angiography (FA), an exogenous dye is injected in the bloodstream to image the vascular structure of the retina. The injected dye can cause adverse reactions such as nausea, vomiting, anaphylactic shock, and even death. In…

图像与视频处理 · 电气工程与系统科学 2022-05-02 Sharif Amit Kamran , Khondker Fariha Hossain , Alireza Tavakkoli , Stewart Lee Zuckerbrod , Salah A. Baker

In this work, we propose to leverage a deep-learning (DL) based reconstruction framework for high quality Swept-Source Optical Coherence Tomography (SS-OCT) images, by incorporating wavelength ({\lambda}) space interferometric fringes.…

图像与视频处理 · 电气工程与系统科学 2024-10-08 Maryam Viqar , Erdem Sahin , Violeta Madjarova , Elena Stoykova , Keehoon Hong

Longitudinal imaging is capable of capturing the static ana\-to\-mi\-cal structures and the dynamic changes of the morphology resulting from aging or disease progression. Self-supervised learning allows to learn new representation from…

Optical Coherence Tomography(OCT) is a non-invasive technique capturing cross-sectional area of the retina in micro-meter resolutions. It has been widely used as a auxiliary imaging reference to detect eye-related pathology and predict…

图像与视频处理 · 电气工程与系统科学 2022-09-01 Shuo Chen , Da Ma , Sieun Lee , Timothy T. L. Yu , Gavin Xu , Donghuan Lu , Karteek Popuri , Myeong Jin Ju , Marinko V. Sarunic , Mirza Faisal Beg

Optical coherence tomography (OCT) is a prevalent imaging technique for retina. However, it is affected by multiplicative speckle noise that can degrade the visibility of essential anatomical structures, including blood vessels and tissue…

图像与视频处理 · 电气工程与系统科学 2021-07-12 Dewei Hu , Joseph D. Malone , Yigit Atay , Yuankai K. Tao , Ipek Oguz

In this paper, the problem of image super-resolution for Optical Coherence Tomography (OCT) has been addressed. Due to the motion artifacts, OCT imaging is usually done with a low sampling rate and the resulting images are often noisy and…

图像与视频处理 · 电气工程与系统科学 2023-06-22 Farnaz Sedighin , Andrzej Cichocki , Hossein Rabbani

Optical coherence tomography (OCT) is a prevalent non-invasive imaging method which provides high resolution volumetric visualization of retina. However, its inherent defect, the speckle noise, can seriously deteriorate the tissue…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Dewei Hu , Yuankai K. Tao , Ipek Oguz

Medical image segmentation is an important task for computer aided diagnosis. Pixelwise manual annotations of large datasets require high expertise and is time consuming. Conventional data augmentations have limited benefit by not fully…

图像与视频处理 · 电气工程与系统科学 2020-04-28 Dwarikanath Mahapatra , Behzad Bozorgtabar , Jean-Philippe Thiran , Ling Shao

Optical coherence tomography (OCT) image analysis plays an important role in the field of ophthalmology. Current successful analysis models rely on available large datasets, which can be challenging to be obtained for certain tasks. The use…

图像与视频处理 · 电气工程与系统科学 2024-05-28 Kun Huang , Xiao Ma , Yuhan Zhang , Na Su , Songtao Yuan , Yong Liu , Qiang Chen , Huazhu Fu

Optical Coherence Tomography (OCT) is a non-invasive depth resolved optical imaging modality, that enables high resolution, cross-sectional imaging in biological tissues and materials at clinically relevant depths. Though OCT offers high…

医学物理 · 物理学 2020-05-29 Cerine Lal , Sergey Alexandrov , Sweta Rani , Yi Zhou , Thomas Ritter , Martin Leahy

Segmenting specific targets or biomarkers is necessary to analyze optical coherence tomography angiography (OCTA) images. Previous methods typically segment all the targets in an OCTA sample, such as retinal vessels (RVs). Although these…

机器学习 · 计算机科学 2024-03-21 Xinrun Chen , Chengliang Wang , Haojian Ning , Shiying Li , Mei Shen

Optical coherence tomography (OCT) is a powerful and noninvasive method for retinal imaging. In this paper, we introduce a fast segmentation method based on a new variant of spectral graph theory named diffusion maps. The research is…

计算机视觉与模式识别 · 计算机科学 2012-10-09 Raheleh Kafieh , Hossein Rabbani , Michael D. Abramoff , Milan Sonka

Optical Coherence Tomography Angiography (OCTA) is a crucial imaging technique for visualizing retinal vasculature and diagnosing eye diseases such as diabetic retinopathy and glaucoma. However, precise segmentation of OCTA vasculature…

图像与视频处理 · 电气工程与系统科学 2025-01-03 Shun Zou , Zhuo Zhang , Guangwei Gao

With the recent advancement in deep learning, we have witnessed a great progress in single image super-resolution. However, due to the significant information loss of the image downscaling process, it has become extremely challenging to…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Zhifei Zhang , Zhaowen Wang , Zhe Lin , Hairong Qi

Strong speckle noise is inherent to optical coherence tomography (OCT) imaging and represents a significant obstacle for accurate quantitative analysis of retinal structures which is key for advances in clinical diagnosis and monitoring of…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Shijie Li , Palaiologos Alexopoulos , Anse Vellappally , Ronald Zambrano , Wollstein Gadi , Guido Gerig

Ultra-wide optical coherence tomography angiography (UW-OCTA) is an emerging imaging technique that offers significant advantages over traditional OCTA by providing an exceptionally wide scanning range of up to 24 x 20 $mm^{2}$, covering…

图像与视频处理 · 电气工程与系统科学 2023-11-20 Hao Wei , Peilun Shi , Guitao Bai , Minqing Zhang , Shuangle Li , Wu Yuan

Recent advancements in medical image analysis have led to the development of highly specialized models tailored to specific clinical tasks. These models have demonstrated exceptional performance and remain a crucial research direction. Yet,…

计算机视觉与模式识别 · 计算机科学 2025-06-19 Alessio Negrini , Simon Reiß