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

    8 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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