Open AccessEye-motion-corrected optical coherence tomography angiography using Lissajous scanning
Author(s) -
Yiwei Chen,
Young-Joo Hong,
Shuichi Makita,
Yoshiaki Yasuno
Publication year - 2018
Publication title -
biomedical optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.9.001111
Subject(s) - lissajous curve , optical coherence tomography , computer vision , artificial intelligence , optics , scanning laser ophthalmoscopy , computer science , coherence (philosophical gambling strategy) , face (sociological concept) , physics , social science , quantum mechanics , sociology
To correct eye motion artifacts in en face optical coherence tomography angiography (OCT-A) images, a Lissajous scanning method with subsequent software-based motion correction is proposed. The standard Lissajous scanning pattern is modified to be compatible with OCT-A and a corresponding motion correction algorithm is designed. The effectiveness of our method was demonstrated by comparing en face OCT-A images with and without motion correction. The method was further validated by comparing motion-corrected images with scanning laser ophthalmoscopy images, and the repeatability of the method was evaluated using a checkerboard image. A motion-corrected en face OCT-A image from a blinking case is presented to demonstrate the ability of the method to deal with eye blinking. Results show that the method can produce accurate motion-free en face OCT-A images of the posterior segment of the eye in vivo .