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Automated surface segmentation of retinal layer is important and challenging in analyzing optical coherence tomography (OCT). Recently, many deep learning based methods have been developed for this task and yield remarkable performance.…

Image and Video Processing · Electrical Eng. & Systems 2022-03-07 Hong Liu , Dong Wei , Donghuan Lu , Yuexiang Li , Kai Ma , Liansheng Wang , Yefeng Zheng

Focusing on the complicated pathological features, such as blurred boundaries, severe scale differences between symptoms, background noise interference, etc., in the task of retinal edema lesions joint segmentation from OCT images and…

Image and Video Processing · Electrical Eng. & Systems 2024-01-03 Meng Wang , Kai Yu , Chun-Mei Feng , Ke Zou , Yanyu Xu , Qingquan Meng , Rick Siow Mong Goh , Yong Liu , Huazhu Fu

In this paper, we design a Generative Adversarial Network (GAN)-based solution for super-resolution and segmentation of optical coherence tomography (OCT) scans of the retinal layers. OCT has been identified as a non-invasive and…

Image and Video Processing · Electrical Eng. & Systems 2022-06-29 Paria Jeihouni , Omid Dehzangi , Annahita Amireskandari , Ali Rezai , Nasser M. Nasrabadi

Optical tomographic cross-sectional images of biological samples were made possible by interferometric imaging techniques such as Optical Coherence Tomography (OCT). Owing to its unprecedented view of the sample, OCT has become a gold…

Medical Physics · Physics 2020-07-13 Pedro Mecê , Elena Gofas-Salas , Michel Paques , Kate Grieve , Serge Meimon

Diabetic Retinopathy (DR) caused by diabetes occurs as a result of changes in the retinal vessels and causes visual impairment. Microaneurysms (MAs) are the early clinical signs of DR, whose timely diagnosis can help detecting DR in the…

Image and Video Processing · Electrical Eng. & Systems 2022-05-11 Elahe Sadat Kazemi Nasab , Ramin Almasi , Bijan Shoushtarian , Ehsan Golkar , Hossein Rabbani

Eye diseases are common in older Americans and can lead to decreased vision and blindness. Recent advancements in imaging technologies allow clinicians to capture high-quality images of the retinal blood vessels via Optical Coherence…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Jacob Thrasher , Annahita Amireskandari , Prashnna Gyawali

Optical coherence tomography (OCT) is a widely used imaging technique in the micrometer regime, which gained accelerating interest in medical imaging in the last twenty years. In up-to-date OCT literature [5,6] certain simplifying…

Medical Physics · Physics 2024-02-23 Leopold Veselka , Lisa Krainz , Leonidas Mindrinos , Wolfgang Drexler , Peter Elbau

Purpose: The objective of this work is to introduce an advanced framework designed to enhance ultrasound images, especially those captured by portable hand-held devices, which often produce lower quality images due to hardware constraints.…

Image and Video Processing · Electrical Eng. & Systems 2024-12-19 Shreeram Athreya , Ashwath Radhachandran , Vedrana Ivezić , Vivek Sant , Corey W. Arnold , William Speier

Speckle is an intrinsic pattern in optical coherence tomography (OCT) that obscures fine image features and degrades effective resolution. In this study, we propose a numerical speckle reduction method based on the dispersed scatterer model…

Layer segmentation is important to quantitative analysis of retinal optical coherence tomography (OCT). Recently, deep learning based methods have been developed to automate this task and yield remarkable performance. However, due to the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-07 Hong Liu , Dong Wei , Donghuan Lu , Xiaoying Tang , Liansheng Wang , Yefeng Zheng

Optical coherence tomography (OCT) is a commonly-used method of extracting high resolution retinal information. Moreover there is an increasing demand for the automated retinal layer segmentation which facilitates the retinal disease…

Image and Video Processing · Electrical Eng. & Systems 2020-09-30 Zeyu Fu , Yang Sun , Xiangyu Zhang , Scott Stainton , Shaun Barney , Jeffry Hogg , William Innes , Satnam Dlay

SD-OCT is a non-invasive cross-sectional imaging modality used for diagnosis of macular defects. Efficient detection and segmentation of the abnormalities seen as biomarkers in OCT can help in analyzing the progression of the disease and…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Shivin Yadav , Karthik Gopinath , Jayanthi Sivaswamy

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

Optical Coherence Tomography (OCT) has become an indispensable tool for investigating mesoscopic features in soft matter and fluid mechanics. Its ability to provide high-resolution, non-invasive measurements in both spatial and temporal…

Optical coherence tomography (OCT) is a non-invasive imaging modality which is widely used in clinical ophthalmology. OCT images are capable of visualizing deep retinal layers which is crucial for early diagnosis of retinal diseases. In…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Peyman Gholami , Priyanka Roy , Mohana Kuppuswamy Parthasarathy , Vasudevan Lakshminarayanan

Intracoronary Optical Coherence Tomography (OCT) enables high-resolution visualization of coronary vessel anatomy but presents challenges due to noise, imaging artifacts, and complex tissue structures. This paper proposes a fully automated…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Amal Lahchim , Lambros Athanasiou

Automated analysis of optical colonoscopy (OC) video frames (to assist endoscopists during OC) is challenging due to variations in color, lighting, texture, and specular reflections. Previous methods either remove some of these variations…

Image and Video Processing · Electrical Eng. & Systems 2022-07-01 Shawn Mathew , Saad Nadeem , Arie Kaufman

Holographic optical coherence tomography (OCT) is a powerful imaging technique, but its ability to reveal low-reflectivity features is limited. In this study, we performed holographic OCT by incoherently averaging volumes with changing…

Purpose: Deformable image registration (DIR) is critical in adaptive radiation therapy (ART) to account for anatomical changes. Conventional intensity-based DIR methods often fail when image intensities differ. This study evaluates a hybrid…

Medical Physics · Physics 2024-11-27 Keyur D. Shah , James A. Shackleford , Nagarajan Kandasamy , Gregory C. Sharp

In this paper, we propose a framework that incorporates experts diagnostics and insights into the analysis of Optical Coherence Tomography (OCT) using multi-modal learning. To demonstrate the effectiveness of this approach, we create a…

Image and Video Processing · Electrical Eng. & Systems 2022-03-22 Y. Logan , K. Kokilepersaud , G. Kwon , G. AlRegib , C. Wykoff , H. Yu
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