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Real-time eye motion correction in phase-resolved OCT angiography with tracking SLO
2012
Biomedical Optics Express
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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
2016
Biomedical Optics Express
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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]
2017
Biomedical Optics Express
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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]
2018
Lecture Notes in Computer Science
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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]
2018
arXiv
pre-print
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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
2016
PLoS ONE
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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]
2013
Lecture Notes in Computer Science
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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
2010
BioMedical Engineering OnLine
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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
2011
Optics Express
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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
2010
NeuroImage
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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
2014
2014 IEEE International Conference on Image Processing (ICIP)
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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
1997
Optics Letters
Preserved Fulltext
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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
2014
IEEE Journal of Selected Topics in Quantum Electronics
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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
2021
Sensors
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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
2020
Journal of Biomedical Optics
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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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