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Real-time eye motion correction in phase-resolved OCT angiography with tracking SLO

Boy Braaf, Kari V. Vienola, Christy K. Sheehy, Qiang Yang, Koenraad A. Vermeer, Pavan Tiruveedhula, David W. Arathorn, Austin Roorda, Johannes F. de Boer
2012 Biomedical Optics Express  
Real-time eye tracking corrected eye drift and prevented discontinuity artifacts from (micro)saccadic eye motion in OCT angiograms.  ...  Additionally we present, for the first time, a phase-resolved OCT angiogram of the mesh-like network of the choriocapillaris containing typical pore openings.  ...  Conclusions In conclusion, we have demonstrated real-time tracking SLO for eye motion correction in phase-resolved OCT angiography of the retina and the choroid.  ... 
doi:10.1364/boe.4.000051 pmid:23304647 pmcid:PMC3539196 fatcat:36pyi2fluffcjilbpeyuljsmcm

Evaluation of artifact reduction in optical coherence tomography angiography with real-time tracking and motion correction technology

Acner Camino, Miao Zhang, Simon S. Gao, Thomas S. Hwang, Utkarsh Sharma, David J. Wilson, David Huang, Yali Jia
2016 Biomedical Optics Express  
We developed an algorithm that recognizes five different types of motion artifacts and used it to evaluate the performance of three motion removal technologies.  ...  Artifacts introduced by eye motion in optical coherence tomography angiography (OCTA) affect the interpretation of images and the quantification of parameters with clinical value.  ...  The first level, eye tracking based on IR image, performs real-time OCT scan correction to account for eye blinks, saccades, and fixation drifts.  ... 
doi:10.1364/boe.7.003905 pmid:27867702 pmcid:PMC5102549 fatcat:itc753d6wbhmbk4rs53wewmvwu

Reduction of frame rate in full-field swept-source optical coherence tomography by numerical motion correction [Invited]

Clara Pfäffle, Hendrik Spahr, Dierck Hillmann, Helge Sudkamp, Gesa Franke, Peter Koch, Gereon Hüttmann
2017 Biomedical Optics Express  
Consequently, the algorithm is capable of compensating even strong motion artifacts. Efficacy of the algorithm was tested on simulated data with motion containing varying frequency components.  ...  The presented algorithm for axial motion correction decreases the high requirements on the camera frame rate and thus brings FF-SS-OCT closer to clinical applications.  ...  time-encodedly during the wavelength sweep of the tunable light source.  ... 
doi:10.1364/boe.8.001499 pmid:28663845 pmcid:PMC5480560 fatcat:crsbu2t64ngxlk3a4bwa6rvjva

Tackling 3D ToF Artifacts Through Learning and the FLAT Dataset [chapter]

Qi Guo, Iuri Frosio, Orazio Gallo, Todd Zickler, Jan Kautz
2018 Lecture Notes in Computer Science  
Scene motion, multiple reflections, and sensor noise introduce artifacts in the depth reconstruction performed by time-of-flight cameras.  ...  We propose a two-stage, deep-learning approach to address all of these sources of artifacts simultaneously.  ...  This results in only partial elimination of the motion artifacts for large motion fields.  ... 
doi:10.1007/978-3-030-01246-5_23 fatcat:g65x2d3z35fcxdsl76bzziv77q

Tackling 3D ToF Artifacts Through Learning and the FLAT Dataset [article]

Qi Guo, Iuri Frosio, Orazio Gallo, Todd Zickler, Jan Kautz
2018 arXiv   pre-print
Scene motion, multiple reflections, and sensor noise introduce artifacts in the depth reconstruction performed by time-of-flight cameras.  ...  We propose a two-stage, deep-learning approach to address all of these sources of artifacts simultaneously.  ...  This results in only partial elimination of the motion artifacts for large motion fields.  ... 
arXiv:1807.10376v1 fatcat:uxwdhmut2ra6vkctwocswgxfne

Pupil Tracking for Real-Time Motion Corrected Anterior Segment Optical Coherence Tomography

Oscar M. Carrasco-Zevallos, Derek Nankivil, Christian Viehland, Brenton Keller, Joseph A. Izatt, Marinko Sarunic
2016 PLoS ONE  
Several groups have demonstrated real-time tracking for motion-compensated in vivo OCT retinal imaging, but these techniques are not applicable in the anterior segment.  ...  Unfortunately, ASOCT structural and vasculature imaging systems do not capture volumes instantaneously and are subject to motion artifacts due to involuntary eye motion that may hinder their accuracy and  ...  making it an attractive option for real-time motion correction in anterior segment imaging.  ... 
doi:10.1371/journal.pone.0162015 pmid:27574800 pmcid:PMC5004917 fatcat:iyhxkp7nbbeffhhk7eod65o5hq

Real-Time Image Stabilization for ToF Cameras on Mobile Platforms [chapter]

Benjamin Langmann, Klaus Hartmann, Otmar Loffeld
2013 Lecture Notes in Computer Science  
However, on mobile platforms depth measurements with continuous wave amplitude modulation Time-of-Flight cameras suffer from motion artifacts, since multiple acquisitions are required in order to compute  ...  In this paper, a method to compensate camera motions during the acquisition of a single depth map as well as for multiple depth maps is presented.  ...  Acknowledgments This work was funded by the German Research Foundation (DFG) as part of the research training group 1564 "Imaging New Modalities".  ... 
doi:10.1007/978-3-642-44964-2_14 fatcat:ruulqnok7fecrepesof6y6uz4y

Motion artifact cancellation in NIR spectroscopy using discrete Kalman filtering

Meltem Izzetoglu, Prabhakar Chitrapu, Scott Bunce, Banu Onaral
2010 BioMedical Engineering OnLine  
Methods: Previously, we had worked on adaptive and Wiener filtering for the cancellation of motion artifacts in NIR studies.  ...  filtering approach without the need for additional sensor measurements and results comparable to Wiener filtering but better suitable for real-time applications.  ...  Ajit Devaraj for his helps in the collection of the data.  ... 
doi:10.1186/1475-925x-9-16 pmid:20214809 pmcid:PMC2846950 fatcat:vwrawpc5sfhyhhndolt7pgeypq

Real-time bulk-motion-correction free Doppler variance optical coherence tomography for choroidal capillary vasculature imaging

Gangjun Liu, Wenjuan Qi, Lingfeng Yu, Zhongping Chen
2011 Optics Express  
Real-time processing and displaying of the structure and blood vessel images are very interesting and is demonstrated using a dual quad-core Central Processing Unit (CPU) workstation.  ...  For in-vivo imaging of human eyes, bulk-motion induced bulk phase must be identified and removed before using the color Doppler method.  ...  Acknowledgment This work was supported by the National Institutes of Health (EB-00293, EB-10090, and RR-01192), Air Force Office of Scientific Research (FA9550-04-0101), and the Beckman Laser Institute  ... 
doi:10.1364/oe.19.003657 pmid:21369191 pmcid:PMC3110778 fatcat:43luli52bre4fdzrte4h7r2nqa

Prospective motion correction of high-resolution magnetic resonance imaging data in children

Timothy T. Brown, Joshua M. Kuperman, Matthew Erhart, Nathan S. White, J. Cooper Roddey, Ajit Shankaranarayanan, Eric T. Han, Dan Rettmann, Anders M. Dale
2010 NeuroImage  
Motion artifacts pose significant problems for the acquisition and analysis of high-resolution magnetic resonance imaging data.  ...  of brain structures.  ...  for Brain and Mind to Tim Brown.  ... 
doi:10.1016/j.neuroimage.2010.06.017 pmid:20542120 pmcid:PMC3146240 fatcat:rhwey2qxyjbibnijtjrdlgyowq

Time of flight motion compensation revisited

J.M. Gottfried, R. Nair, S. Meister, C.S. Garbe, D. Kondermann
2014 2014 IEEE International Conference on Image Processing (ICIP)  
In this paper, we study motion artifacts that arise in Time-of-Flight imaging of dynamic scenes caused by the sequential nature of the raw image acquisition process used to compute the final depth image  ...  Many methods for compensation of such errors have been proposed to date, but still lack a proper comparison.  ...  For the correction used to repair motion artifacts, Schmidt [2] uses the (temporally) last pixel values with valid raw images whereas Hansard et al.  ... 
doi:10.1109/icip.2014.7026184 dblp:conf/icip/GottfriedNMGK14 fatcat:mmm2dz5fjnhpxc352inv4xfqmq

Optical Doppler tomographic imaging of fluid flow velocity in highly scattering media

Zhongping Chen, Thomas E. Milner, Digant Dave, J. Stuart Nelson
1997 Optics Letters  
Real-time processing and displaying of the structure and blood vessel images are very interesting and is demonstrated using a dual quad-core Central Processing Unit (CPU) workstation.  ...  For in-vivo imaging of human eyes, bulk-motion induced bulk phase must be identified and removed before using the color Doppler method.  ...  Acknowledgment This work was supported by the National Institutes of Health (EB-00293, EB-10090, and RR-01192), Air Force Office of Scientific Research (FA9550-04-0101), and the Beckman Laser Institute  ... 
doi:10.1364/ol.22.000064 pmid:18183104 fatcat:wploenq5arcdzna2h54jmzrpb4

Progress on Developing Adaptive Optics–Optical Coherence Tomography for In Vivo Retinal Imaging: Monitoring and Correction of Eye Motion Artifacts

Robert J. Zawadzki, Arlie G. Capps, Dae Yu Kim, Athanasios Panorgias, Scott B. Stevenson, Bernd Hamann, John S. Werner
2014 IEEE Journal of Selected Topics in Quantum Electronics  
We present a method for correcting motion artifacts in AO-OCT volume data after acquisition using simultaneously captured adaptive optics-scanning laser ophthalmoscope (AO-SLO) images.  ...  The corrected volume data improve the accuracy of quantitative analyses of microscopic structures.  ...  It also performed, in part, under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-JRNL-639865  ... 
doi:10.1109/jstqe.2013.2288302 pmid:25544826 pmcid:PMC4276343 fatcat:b6dqkhijsfbrtahyaccyjurtly

A Motion Artifact Correction Procedure for fNIRS Signals Based on Wavelet Transform and Infrared Thermography Video Tracking

David Perpetuini, Daniela Cardone, Chiara Filippini, Antonio Maria Chiarelli, Arcangelo Merla
2021 Sensors  
A novel procedure for motion artifact correction for fNIRS signals based on wavelet transform and video tracking developed for infrared thermography (IRT) is presented.  ...  The method was tested using simulated functional hemodynamic responses added to real resting-state fNIRS recordings corrupted by movement artifacts.  ...  The motion artifacts correction algorithm proposed was validated employing real fNIRS data acquired at rest during the execution of random movements.  ... 
doi:10.3390/s21155117 pmid:34372353 pmcid:PMC8346954 fatcat:ifdzym4ffvfb3kq44ppqkrbkki

Automatic motion compensation for structured illumination endomicroscopy using a flexible fiber bundle

Andrew D. Thrapp, Michael R. Hughes
2020 Journal of Biomedical Optics  
Motion compensation is achieved using image registration and real-time pattern orientation correction via a digital micromirror device.  ...  We report and validate an automatic motion compensation technique to overcome motion artifacts and allow generation of mosaics in SIM endomicroscopy.  ...  Andrew Thrapp was supported by the University of Kent Vice Chancellor's PhD Scholarship.  ... 
doi:10.1117/1.jbo.25.2.026501 pmid:32100492 pmcid:PMC7040435 fatcat:o7swn3mcyncmrffhsppqymaz5e
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