12 February 2011 Using phase gradient autofocus (PGA) algorithm for restoration OCT images with diffraction limited resolution
Author Affiliations +
Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 78893D (2011); doi: 10.1117/12.874372
Event: SPIE BiOS, 2011, San Francisco, California, United States
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander A. Moiseev, Grigory V. Gelikonov, Pavel A. Shilyagin, 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 (12 February 2011); doi: 10.1117/12.874372; https://doi.org/10.1117/12.874372
PROCEEDINGS
6 PAGES


SHARE
KEYWORDS
Optical coherence tomography

Image resolution

Diffraction

Fourier transforms

Synthetic aperture radar

Computer simulations

Numerical simulations

Back to Top