Fast and robust standard-deviation-based method for bulk motion compensation in phase-based functional OCT

Xiang Wei, Acner Camino, Shaohua Pi, William Cepurna, David Huang, John Morrison, Jia Yali

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Phase-based optical coherence tomography (OCT), such as OCT angiography (OCTA) and Doppler OCT, is sensitive to the confounding phase shift introduced by subject bulk motion. Traditional bulk motion compensation methods are limited by their accuracy and computing cost-effectiveness. In this Letter, to the best of our knowledge, we present a novel bulk motion compensation method for phase-based functional OCT. Bulk motion associated phase shift can be directly derived by solving its equation using a standard deviation of phase-based OCTA and Doppler OCT flow signals. This method was evaluated on rodent retinal images acquired by a prototype visible light OCT and human retinal images acquired by a commercial system. The image quality and computational speed were significantly improved, compared to two conventional phase compensation methods.

Original languageEnglish (US)
Pages (from-to)2204-2207
Number of pages4
JournalOptics Letters
Volume43
Issue number9
DOIs
StatePublished - May 1 2018

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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