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Optical Coherence Tomography (OCT) image denoising is a fundamental problem as OCT images suffer from multiplicative speckle noise, resulting in poor visibility of retinal layers. The traditional denoising methods consider specific…

图像与视频处理 · 电气工程与系统科学 2022-09-21 Arka Saha , Sourya Sengupta

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

Optical Coherence Tomography (OCT) is pervasive in both the research and clinical practice of Ophthalmology. However, OCT images are strongly corrupted by noise, limiting their interpretation. Current OCT denoisers leverage assumptions on…

图像与视频处理 · 电气工程与系统科学 2020-08-19 Guillaume Gisbert , Neel Dey , Hiroshi Ishikawa , Joel Schuman , James Fishbaugh , Guido Gerig

Optical coherence tomography (OCT) suffers from speckle noise, causing the deterioration of image quality, especially in high-resolution modalities like visible light OCT (vis-OCT). The potential of conventional supervised deep learning…

图像与视频处理 · 电气工程与系统科学 2024-05-16 Lingyun Wang , Jose A Sahel , Shaohua Pi

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

Optical Coherence Tomography (OCT) is an emerging technique in the field of biomedical imaging, with applications in ophthalmology, dermatology, coronary imaging etc. Due to the underlying physics, OCT images usually suffer from a granular…

计算机视觉与模式识别 · 计算机科学 2015-02-10 Ahmadreza Baghaie , Roshan M. D'souza , Zeyun Yu

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…

Optical coherence tomography (OCT) is an important interferometric diagnostic technique which provides cross-sectional views of the subsurface microstructure of biological tissues. However, the imaging quality of high-speed OCT is limited…

计算机视觉与模式识别 · 计算机科学 2015-03-13 Liheng Bian , Jinli Suo , Feng Chen , Qionghai Dai

Noise in speckle-prone optical coherence tomography tends to obfuscate important details necessary for medical diagnosis. In this paper, a denoising approach that preserves disease characteristics on retinal optical coherence tomography…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Max-Heinrich Laves , Sontje Ihler , Lüder Alexander Kahrs , Tobias Ortmaier

Nosie is an important cause of low quality Optical coherence tomography (OCT) image. The neural network model based on Convolutional neural networks(CNNs) has demonstrated its excellent performance in image denoising. However, OCT image…

图像与视频处理 · 电气工程与系统科学 2022-05-03 Jie Du , Xujian Yang , Kecheng Jin , Xuanzheng Qi , Hu Chen

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

Inpainting shadowed regions cast by superficial blood vessels in retinal optical coherence tomography (OCT) images is critical for accurate and robust machine analysis and clinical diagnosis. Traditional sequence-based approaches such as…

计算机视觉与模式识别 · 计算机科学 2022-02-24 Yaoqi Tang , Yufan Li , Hongshan Liu , Jiaxuan Li , Peiyao Jin , Yu Gan , Yuye Ling , Yikai Su

In this work we propose a ResNet-based universal method for speckle reduction in optical coherence tomography (OCT) images. The proposed model contains 3 main modules: Convolution-BN-ReLU, Branch and Residual module. Unlike traditional…

计算机视觉与模式识别 · 计算机科学 2019-03-25 Cai Ning , Shi Fei , Hu Dianlin , Chen Yang

In recent years, there has been a growing interest in applying convolutional neural networks (CNNs) to low-level vision tasks such as denoising and super-resolution. Due to the coherent nature of the image formation process, optical…

计算机视觉与模式识别 · 计算机科学 2019-01-29 Ashkan Abbasi , Amirhassan Monadjemi , Leyuan Fang , Hossein Rabbani , Yi Zhang

Optical Coherence Tomography (OCT) is a vital imaging modality for diagnosing and monitoring retinal diseases. However, OCT images are inherently degraded by speckle noise, which obscures fine details and hinders accurate interpretation.…

计算机视觉与模式识别 · 计算机科学 2025-09-15 Botond Fazekas , Thomas Pinetz , Guilherme Aresta , Taha Emre , Hrvoje Bogunovic

We present a deep learning framework for volumetric speckle reduction in optical coherence tomography (OCT) based on a conditional generative adversarial network (cGAN) that leverages the volumetric nature of OCT data. In order to utilize…

图像与视频处理 · 电气工程与系统科学 2024-06-24 Bhaskara Rao Chintada , Sebastián Ruiz-Lopera , René Restrepo , Brett E. Bouma , Martin Villiger , Néstor Uribe-Patarroyo

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) can perform non-invasive high-resolution three-dimensional (3D) imaging and has been widely used in biomedical fields, while it is inevitably affected by coherence speckle noise which degrades OCT imaging…

光学 · 物理学 2025-06-30 Renxiong Wu , Fei Zheng , Meixuan Li , Shaoyan Huang , Xin Ge , Linbo Liu , Yong Liu , Guangming Ni

In contrast to non-medical image denoising, where enhancing image clarity is the primary goal, medical image denoising warrants preservation of crucial features without introduction of new artifacts. However, many denoising methods that…

图像与视频处理 · 电气工程与系统科学 2024-12-02 Md. Touhidul Islam , Md. Abtahi M. Chowdhury , Sumaiya Salekin , Aye T. Maung , Akil A. Taki , Hafiz Imtiaz

In Optical Coherence Tomography (OCT), speckle noise significantly hampers image quality, affecting diagnostic accuracy. Current methods, including traditional filtering and deep learning techniques, have limitations in noise reduction and…

图像与视频处理 · 电气工程与系统科学 2024-02-27 Aytaç Özkan , Elena Stoykova , Thomas Sikora , Violeta Madjarova
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