Speckle contrast reduction through the use of a modally-specific photonic lantern for optical coherence tomography

R Maltais-Tariant, R Itzamna Becerra-Deana… - Biomedical Optics …, 2023 - opg.optica.org
A few-mode optical coherence tomography (FM-OCT) system was developed around a 2× 1
modally-specific photonic lantern (MSPL) centered at 1310 nm. The MSPL allowed FM-OCT …

Optical coherence tomography image despeckling based on tensor singular value decomposition and fractional edge detection

Y Fang, X Shao, B Liu, H Lv - Heliyon, 2023 - cell.com
Optical coherence tomography (OCT) imaging is a technique that is frequently used to
diagnose medical conditions. However, coherent noise, sometimes referred to as speckle …

Fusion denoising algorithm of optical coherence tomography image based on point-estimated and block-estimated

H Chen - Optik, 2021 - Elsevier
Optical coherence tomography (OCT), as a tool for biological research and clinical
application, plays an important role in disease diagnosis. However, speckle noise can …

Optical coherence tomography image despeckling based on edge feature-guided higher-order singular value decomposition

H Lv - Optics and Lasers in Engineering, 2023 - Elsevier
As an emerging tomographic technique, optical coherence tomography (OCT) has been
widely used in clinical practice in a short period of time. Unfortunately, the quality of OCT …

Angular compounding for speckle reduction in optical coherence tomography using geometric image registration algorithm and digital focusing

J Zhao, Y Winetraub, E Yuan, WH Chan, SZ Aasi… - Scientific Reports, 2020 - nature.com
Optical coherence tomography (OCT) suffers from speckle noise due to the high spatial
coherence of the utilized light source, leading to significant reductions in image quality and …

OCT image denoising algorithm based on discrete wavelet transform and spatial domain feature fusion

W Wei, H Chen, J Gao, S Fu, J Li - Journal of Modern Optics, 2023 - Taylor & Francis
Optical coherence tomography (OCT) is an emerging optical imaging modality with high
resolution and non-invasive, which plays an important role in applications such as material …

[HTML][HTML] Upper limit for angular compounding speckle reduction

Y Winetraub, C Wu, GP Collins, S Chu… - Applied Physics …, 2019 - pubs.aip.org
Angular compounding is a technique for reducing speckle noise in optical coherence
tomography that is claimed to significantly improve the signal-to-noise ratio (SNR) of images …

2D MEMS-based high-speed beam-shifting technique for speckle noise reduction and flow rate measurement in optical coherence tomography

W Shi, C Chen, J Jivraj, Y Dobashi, W Gao… - Optics Express, 2019 - opg.optica.org
In this manuscript, a two-dimensional (2D) micro-electro-mechanical system (MEMS)-based,
high-speed beam-shifting spectral domain optical coherence tomography (MHB-SDOCT) is …

Measurement and compensation of motion artifacts in spectral domain optical coherence tomography

H Bian, W Gao - Optik, 2019 - Elsevier
Spectral domain optical coherence tomography (SDOCT) has the capability of generating
optical sectioning images at high depth resolution in vivo, which is helpful for the diagnosis …

[PDF][PDF] Quantitative Differential Standard Deviation of Log-Scale Optical Coherence Tomography Intensity Based Microvascular Velocity Measurement

W Shi, Z Qiu, Y Chang, C Chen, W Gao - Available at SSRN 4297940 - papers.ssrn.com
In this letter, we report a quantitative differential standard deviation of log-scale intensity (Q-
DSDLI) technique to measure the microvascular velocity in human skin, in which stepped M …