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Large-volume optical coherence tomography with real-time correction of geometric distortion artifacts

Jeught, S.V.D. and Buytaert, J.A.N. and Bradu, Adrian and Podoleanu, Adrian G.H. and Dirckx, J.J.J. (2013) Large-volume optical coherence tomography with real-time correction of geometric distortion artifacts. In: Recent Advances in Topography Research. Nova Science Publishers, Inc., pp. 219-236. ISBN 978-1-62618-840-2. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)

Abstract

Large-volume optical coherence tomography (OCT)-setups employ scanning mirrors and suffer from non-linear geometric distortion artifacts in which the degree of distortion is determined by the maximum angles over which the mirrors rotate. In this chapter, we describe a straightforward approach to correct for these distortion artifacts, creating an alternative to previously reported ray-tracing schemes that are unable to apply these corrections in real-time. By implementing the proposed 3D recalibration algorithm on the graphics card of a standard computer, this feature can be applied in real-time. We validate the accuracy of the technique using OCT measurements of a highly curved object within a large imaging volume of 12.35 x 10.13 x 2.36 mm3. The resulting 3D object shape measurements are compared against high-resolution and aberration-free optical profilometry measurements. Maintaining an optical resolution of <10μm within the sample, both axially and transversally, we realized a real-time, high-resolution, largevolume OCT imaging system, capable of producing distortion corrected wide-field OCT data with a geometric surface shape accuracy of <15μm. © 2013 Nova Science Publishers, Inc. All rights reserved.

Item Type: Book section
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Recent Adv. in Topogr. Res. [Field not mapped to EPrints] AD - Laboratory of Biomedical Physics, University of Antwerp, Antwerp, Belgium [Field not mapped to EPrints] AD - Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Fan distortion, GPU, Optical coherence tomography, Real-time, Topography
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: 15 Jul 2015 09:10 UTC
Last Modified: 29 May 2019 14:47 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49319 (The current URI for this page, for reference purposes)
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