Motion artifact and speckle noise reduction in polarization sensitive optical coherence tomography by retinal tracking.
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.
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria ; Canon Inc., Tokyo, Japan.
Mitsuro
M
Sugita
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
Stefan
S
Zotter
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
Michael
M
Pircher
Canon Inc., Tokyo, Japan.
Tomoyuki
T
Makihira
Canon Inc., Tokyo, Japan.
Kenichi
K
Saito
Canon Inc., Tokyo, Japan.
Nobuhiro
N
Tomatsu
Canon Inc., Tokyo, Japan.
Makoto
M
Sato
Department of Ophthalmology and Optometry, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
Philipp
P
Roberts
Department of Ophthalmology and Optometry, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
Ursula
U
Schmidt-Erfurth
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
Christoph K
CK
Hitzenberger
(170.0110) Imaging systems; (170.0170) Medical optics and biotechnology; (170.2655) Functional monitoring and imaging; (170.4470) Ophthalmology; (170.4500) Optical coherence tomography