Cross-scanning optical coherence tomography angiography for eye motion correction

Hyung Jin Kim, Byeong Joo Song, Youngwoon Choi, Beop Min Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Article numbere202000170
JournalJournal of Biophotonics
Volume13
Issue number9
DOIs
Publication statusPublished - 2020 Sept 1

Bibliographical note

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

Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • motion correction
  • motion-corrected angiogram
  • optical coherence tomography
  • optical coherence tomography angiography

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • General Biochemistry,Genetics and Molecular Biology
  • General Engineering
  • General Physics and Astronomy

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