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Proceedings Paper

Phase estimation for global defocus correction in optical coherence tomography
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Paper Abstract

In this work we investigate three techniques for estimation of the non-linear phase present due to defocus in optical coherence tomography, and apply them with the angular spectrum method. The techniques are: Least squares fitting the of unwrapped phase of the angular spectrum, iterative optimization, and sub-aperture correlations. The estimated phase of a single en-face image is used to extrapolate the non-linear phase at all depths, which in the end can be used to correct the entire 3-D tomogram, and any other tomogram from the same system.

Paper Details

Date Published: 5 March 2018
PDF: 5 pages
Proc. SPIE 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources, 105910Q (5 March 2018); doi: 10.1117/12.2292547
Show Author Affiliations
Mikkel Jensen, Technical Univ. of Denmark (Denmark)
Niels M. Israelsen, Technical Univ. of Denmark (Denmark)
Adrian Podoleanu, Univ. of Kent (United Kingdom)
Ole Bang, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 10591:
2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources
Adrian Podoleanu; Ole Bang, Editor(s)

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