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Choroid is the vascular layer of the eye, which is directly related to the incidence and severity of many ocular diseases. Optical Coherence Tomography (OCT) is capable of imaging both the cross-sectional view of retina and choroid, but the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Huihong Zhang , Jianlong Yang , Kang Zhou , Zhenjie Chai , Jun Cheng , Shenghua Gao , Jiang Liu

According to the World Health Organization, 285 million people worldwide live with visual impairment. The most commonly used imaging technique for diagnosis in ophthalmology is optical coherence tomography (OCT). However, analysis of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Max-Heinrich Laves , Sontje Ihler , Lüder A. Kahrs , Tobias Ortmaier

The Optical coherence tomography (OCT) is a powerful interferometric imaging technique widely used in medical fields such as ophthalmology, cardiology and dermatology, for which footprint and cost are becoming increasingly important. Here…

Optical Coherence Tomography (OCT) is an imaging modality that has been widely adopted for visualizing corneal, retinal and limbal tissue structure with micron resolution. It can be used to diagnose pathological conditions of the eye, and…

Image and Video Processing · Electrical Eng. & Systems 2019-05-08 Jiahong Ouyang , Tejas Sudharshan Mathai , Kira Lathrop , John Galeotti

Optical coherence tomography (OCT) based measurements of retinal layer thickness, such as the retinal nerve fibre layer (RNFL) and the ganglion cell with inner plexiform layer (GCIPL) are commonly used for the diagnosis and monitoring of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Stefan Maetschke , Bhavna Antony , Hiroshi Ishikawa , Gadi Wollstein , Joel S. Schuman , Rahil Garnavi

Purpose: The integration of multimodal imaging into operating rooms paves the way for comprehensive surgical scene understanding. In ophthalmic surgery, by now, two complementary imaging modalities are available: operating microscope (OPMI)…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Nikolo Rohrmoser , Ghazal Ghazaei , Michael Sommersperger , Nassir Navab

Imaging airway tissue, optical coherence tomography (OCT) provides cross-sectional images of tissue structures, shows cilia movement and mucus secretion, but does not provide sufficient contrast to differentiate individual cells. By using…

This paper proposes an automated method for the segmentation and extraction of the posterior segment of the human eye, including the vitreous, retina, choroid, and sclera compartments, using multi-vendor optical coherence tomography (OCT)…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Bilal Hassan , Taimur Hassan , Ramsha Ahmed , Shiyin Qin , Naoufel Werghi

Developing efficient vessel-tracking algorithms is crucial for imaging-based diagnosis and treatment of vascular diseases. Vessel tracking aims to solve recognition problems such as key (seed) point detection, centerline extraction, and…

Image and Video Processing · Electrical Eng. & Systems 2020-12-17 Dengqiang Jia , Xiahai Zhuang

Segmentation of retinal layers from Optical Coherence Tomography (OCT) volumes is a fundamental problem for any computer aided diagnostic algorithm development. This requires preprocessing steps such as denoising, region of interest…

Computer Vision and Pattern Recognition · Computer Science 2018-06-26 Karthik Gopinath , Samrudhdhi B Rangrej , Jayanthi Sivaswamy

Quantification of intra-retinal boundaries in optical coherence tomography (OCT) is a crucial task for studying and diagnosing neurological and ocular diseases. Since manual segmentation of layers is usually a time consuming task and relay…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Mahdi Salarian

Accurate cerebrovascular segmentation from Magnetic Resonance Angiography (MRA) and Computed Tomography Angiography (CTA) is of great significance in diagnosis and treatment of cerebrovascular pathology. Due to the complexity and topology…

Image and Video Processing · Electrical Eng. & Systems 2024-11-22 Zhanqiang Guo , Yao Luan , Jianjiang Feng , Wangsheng Lu , Yin Yin , Guangming Yang , Jie Zhou

Integrating all optical components of an optical coherence tomography (OCT) device into a single chip is a non-trivial and a challenging job. The design and development of such a lab-on-a chip will be possible only via…

Optical Coherence Tomography Angiography (OCTA) is a crucial tool in the clinical screening of retinal diseases, allowing for accurate 3D imaging of blood vessels through non-invasive scanning. However, the hardware-based approach for…

Image and Video Processing · Electrical Eng. & Systems 2024-08-22 Shuhan Li , Dong Zhang , Xiaomeng Li , Chubin Ou , Lin An , Yanwu Xu , Kwang-Ting Cheng

We report a proof-of-concept demonstration of a tunable infrared (IR) optical coherence tomography (OCT) technique with detection of only visible range photons. Our method is based on the nonclassical interference of frequency correlated…

Quantum Physics · Physics 2018-04-09 Anna V. Paterova , Hongzhi Yang , Chengwu An , Dmitry A. Kalashnikov , Leonid A. Krivitsky

This article deals with the problem of vessel edge and centerline detection using classical image processing techniques due to their simpleness and easiness to be implemented. The method is divided into four steps: the vessel enhancement…

Computer Vision and Pattern Recognition · Computer Science 2017-07-13 Tache Irina Andra

Optical coherence tomography (OCT) microscope (OCM) uses a high-numerical-aperture objective to achieve cellular-level lateral resolution. However, its practical imaging depth range is limited by the depth of focus (DOF). Although…

Optical Coherence Tomography (OCT) is an emerging technique in the field of biomedical imaging, with applications in ophthalmology, dermatology, coronary imaging etc. OCT images usually suffer from a granular pattern, called speckle noise,…

Computer Vision and Pattern Recognition · Computer Science 2016-05-25 Ahmadreza Baghaie , Roshan M. D'souza , Zeyun Yu

We propose a new deep learning approach for automatic detection and segmentation of fluid within retinal OCT images. The proposed framework utilizes both ResNet and Encoder-Decoder neural network architectures. When training the network, we…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Dustin Morley , Hassan Foroosh , Saad Shaikh , Ulas Bagci

Automatic and accurate segmentation for retinal and choroidal layers of Optical Coherence Tomography (OCT) is crucial for detection of various ocular diseases. However, because of the variations in different equipments, OCT data obtained…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Jiexiang Wang , Cheng Bian , Meng Li , Xin Yang , Kai Ma , Wenao Ma , Jin Yuan , Xinghao Ding , Yefeng Zheng