5 March 2018 Phase estimation for global defocus correction in optical coherence tomography
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Proceedings Volume 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources; 105910Q (2018) https://doi.org/10.1117/12.2292547
Event: Second Canterbury Conference on Optical Coherence Tomography, 2017, Canterbury, United Kingdom
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.
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Mikkel Jensen, Mikkel Jensen, Niels M. Israelsen, Niels M. Israelsen, Adrian Podoleanu, Adrian Podoleanu, Ole Bang, Ole Bang, } "Phase estimation for global defocus correction in optical coherence tomography", Proc. SPIE 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources, 105910Q (5 March 2018); doi: 10.1117/12.2292547; https://doi.org/10.1117/12.2292547
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