Conference paper
Phase estimation for global defocus correction in optical coherence tomography
In this work we investigate three techniques for estimation of the non-linear phase present due to defocus in opticalcoherence tomography, and apply them with the angular spectrum method. The techniques are: Least squarestting 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, whichin the end can be used to correct the entire 3-D tomogram, and any other tomogram from the same system.
Language: | English |
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Publisher: | SPIE - International Society for Optical Engineering |
Year: | 2017 |
Pages: | 105910Q-105910Q-5 |
Proceedings: | 2nd Canterbury Conference on Optical Coherence Tomography |
ISBN: | 1510616748 , 1510616756 , 9781510616745 and 9781510616752 |
ISSN: | 24109045 and 16057422 |
Types: | Conference paper |
DOI: | 10.1117/12.2292547 |
ORCIDs: | Jensen, Mikkel , Israelsen, Niels Møller and Bang, Ole |