Cross-scanning optical coherence tomography angiography for eye motion correction
- Authors
- Kim, Hyung-Jin; Song, Byeong Joo; Choi, Youngwoon; Kim, Beop-Min
- Issue Date
- 9월-2020
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- motion correction; motion-corrected angiogram; optical coherence tomography; optical coherence tomography angiography
- Citation
- JOURNAL OF BIOPHOTONICS, v.13, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF BIOPHOTONICS
- Volume
- 13
- Number
- 9
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/130477
- DOI
- 10.1002/jbio.202000170
- ISSN
- 1864-063X
- Abstract
- 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.
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- Appears in
Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
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