3D motion-compensated optical coherence tomography based on higher-order regression towards real-time volumetric imaging of the cornea

Ruizhi Zuo, Yaning Wang, Kristina Irsch, Jin U. Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optical coherence tomography (OCT) has evolved into a powerful imaging technique that allows high-resolution visualization of biological tissues. However, most in vivo OCT systems for real-time volumetric (3D) imaging suffer from image distortion due to motion artifacts induced by involuntary and physiological movements of the living tissue, such as the eye that is constantly in motion. While several methods have been proposed to account for and remove motion artifacts during OCT imaging of the retina, fewer works have focused on motion-compensated OCT-based measurements of the cornea. Here, we propose an OCT system for volumetric imaging of the cornea, capable of compensating both axial and lateral motion with micron-scale accuracy and millisecond-scale time consumption based on higher-order regression. System performance was evaluated during volumetric imaging of corneal phantom and bovine (ex vivo) samples that were positioned in the palm of a hand to simulate involuntary 3D motion. An overall motion-artifact error of less than 4.61 μm and processing time of about 3.40 ms for each B-scan was achieved.

Original languageEnglish (US)
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI
EditorsJoseph A. Izatt, James G. Fujimoto
PublisherSPIE
ISBN (Electronic)9781510647671
DOIs
StatePublished - 2022
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI 2022 - San Francisco, United States
Duration: Jan 24 2022Jan 26 2022

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume11948
ISSN (Print)1605-7422

Conference

ConferenceOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI 2022
Country/TerritoryUnited States
CitySan Francisco
Period1/24/221/26/22

Keywords

  • Optical coherence tomography
  • cornea
  • motion compensation
  • real-time
  • volumetric imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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