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Real-time correction of geometric distortion artefacts in large-volume optical coherence tomography

Van Der Jeught, S., Buytaert, J.A.N., Bradu, Adrian, Podoleanu, Adrian G.H., Dirckx, J.J.J. (2013) Real-time correction of geometric distortion artefacts in large-volume optical coherence tomography. Measurement Science and Technology, 24 (5). 0-0. ISSN 0957-0233. (doi:10.1088/0957-0233/24/5/057001) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided)

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Abstract

Large-volume optical coherence tomography (OCT) setups employ scanning mirrors and suffer from geometric distortion artefacts in which the degree of distortion is determined by the maximum angles over which the mirrors rotate. In this note, we describe a straightforward coordinate transformation scheme to correct for these artefacts in three dimensions, creating an alternative to previously reported ray-tracing schemes. We demonstrate that this recalibration procedure can be applied in real time by implementing the proposed algorithm on the graphics card of a standard computer, making it useful for topography applications. The accuracy of the proposed calibration procedure is validated over an imaging volume of 12.35x10.13x2.36 mm3 using optical moire measurements of a highly curved object. © 2013 IOP Publishing Ltd.

Item Type: Article
DOI/Identification number: 10.1088/0957-0233/24/5/057001
Additional information: Embargo ended 2014.
Uncontrolled keywords: distortion correction, GPU, optical coherence tomography, real time, Calibration procedure, Co-ordinate transformation, Degree of distortion, Distortion correction, Geometric distortion, GPU, Real time, Real-time corrections, Calibration, Mirrors, Optical tomography
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 16 Jul 2015 09:31 UTC
Last Modified: 29 May 2019 14:47 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49342 (The current URI for this page, for reference purposes)
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