TY - JOUR
T1 - Cross-scanning optical coherence tomography angiography for eye motion correction
AU - Kim, Hyung Jin
AU - Song, Byeong Joo
AU - Choi, Youngwoon
AU - Kim, Beop Min
N1 - Funding Information:
This study was funded by the Ministry of Trade, Industry, and Energy (MOTIE) (10063364) and the National Research Foundation of Korea (NRF) (2015M3C7A1029034).
Funding Information:
Ministry of Trade, Industry and Energy, Grant/Award Number: 10063364; National Research Foundation of Korea, Grant/Award Number: 2015M3C7A1029034 Funding information
Funding Information:
This study was funded by the Ministry of Trade, Industry, and Energy (MOTIE) (10063364) and the National Research Foundation of Korea (NRF) (2015M3C7A1029034).
Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - We propose a cross-scanning optical coherence tomography (CS-OCT) system to correct eye motion artifacts in OCT angiography images. This system employs a dual-illumination configuration with two orthogonally polarized beams, each of which simultaneously perform raster scanning in perpendicular direction with each other over the same area. In the reference arm, a polarization delay unit is used to acquire the two orthogonally polarized interferograms with a single photo detector by introducing different optical delay lines. The two cross-scanned volume data are affected by the same eye motion but in two orthogonal directions. We developed a motion correction algorithm, which removes artifacts in the slow axis of each angiogram using the other and merges them through a nonrigid registration algorithm. In this manner, we obtained a motion-corrected angiogram within a single volume scanning time without additional eye-tracking devices.
AB - We propose a cross-scanning optical coherence tomography (CS-OCT) system to correct eye motion artifacts in OCT angiography images. This system employs a dual-illumination configuration with two orthogonally polarized beams, each of which simultaneously perform raster scanning in perpendicular direction with each other over the same area. In the reference arm, a polarization delay unit is used to acquire the two orthogonally polarized interferograms with a single photo detector by introducing different optical delay lines. The two cross-scanned volume data are affected by the same eye motion but in two orthogonal directions. We developed a motion correction algorithm, which removes artifacts in the slow axis of each angiogram using the other and merges them through a nonrigid registration algorithm. In this manner, we obtained a motion-corrected angiogram within a single volume scanning time without additional eye-tracking devices.
KW - motion correction
KW - motion-corrected angiogram
KW - optical coherence tomography
KW - optical coherence tomography angiography
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U2 - 10.1002/jbio.202000170
DO - 10.1002/jbio.202000170
M3 - Article
C2 - 32475032
AN - SCOPUS:85087305460
VL - 13
JO - Journal of Biophotonics
JF - Journal of Biophotonics
SN - 1864-063X
IS - 9
M1 - e202000170
ER -