11 February 2011 Using phase gradient autofocus (PGA) algorithm for restoration OCT images with diffraction limited resolution
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Abstract
In this paper we show the ability of well known in Synthetic Aperture Radar applications Phase Gradient Autofocus to recover defocused Optical Coherence Tomography images and achieve lateral resolution about 5 um at wide depth range. High-resolution details could be recovered from far-from-focal plane (defocused) regions. Both numerical simulations and experiment have been performed to demonstrate the ability of the method.
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Alexander A. Moiseev, Alexander A. Moiseev, Grigory V. Gelikonov, Grigory V. Gelikonov, Pavel A. Shilyagin, Pavel A. Shilyagin, Valentin M. Gelikonov, Valentin M. Gelikonov, } "Using phase gradient autofocus (PGA) algorithm for restoration OCT images with diffraction limited resolution", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78893D (11 February 2011); doi: 10.1117/12.874372; https://doi.org/10.1117/12.874372
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