Open AccessMotion artifact and speckle noise reduction in polarization sensitive optical coherence tomography by retinal tracking
Author(s) -
Mitsuro Sugita,
Stefan Zotter,
Michael Pircher,
Tomoyuki Makihira,
Kenichi Saitô,
Nobuhiro Tomatsu,
Makoto Sato,
Philipp Roberts,
Ursula SchmidtErfurth,
Christoph K. Hitzenberger
Publication year - 2013
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.5.000106
Subject(s) - optical coherence tomography , raster scan , optics , speckle noise , computer vision , computer science , artifact (error) , physics , speckle pattern , artificial intelligence
We present a novel polarization sensitive optical coherence tomography (PS-OCT) system with an integrated retinal tracker. The tracking operates at up to 60 Hz, correcting PS-OCT scanning positions during the acquisition to avoid artifacts caused by eye motion. To demonstrate the practical performance of the system, we imaged several healthy volunteers and patients with AMD both with B-scan repetitions for frame averaging and with 3D raster scans. Under large retinal motions with up to 1 mm amplitude at 0.5 ~a few Hz frequency range, motion artifact suppression in the PS-OCT images as well as standard deviation noise reduction in the frame averaged retardation images are presented.