Experimental validation of an optimized signal processing method to handle non-linearity in swept-source optical coherence tomography

Par Conseil national de recherches du Canada

Téléchargement	Voir le manuscrit accepté : Experimental validation of an optimized signal processing method to handle non-linearity in swept-source optical coherence tomography (PDF, 1.5 Mio)
DOI	Trouver le DOI : https://doi.org/10.1364/OE.18.010446
Auteur	Rechercher : Vergnole, Sébastien¹; Rechercher : Lévesque, Daniel¹; Rechercher : Lamouche, Guy¹
Affiliation	Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
Format	Texte, Article
Sujet	Optical coherence tomography; Nonlinear optical signal processing
Résumé	We evaluate various signal processing methods to handle the non-linearity in wavenumber space exhibited by most laser sources for swept-source optical coherence tomography. The following methods are compared for the same set of experimental data: non-uniform discrete Fourier transforms with Vandermonde matrix or with Lomb periodogram, resampling with linear interpolation or spline interpolation prior to fast- Fourier transform (FFT), and resampling with convolution prior to FFT. By selecting an optimized Kaiser-Bessel window to perform the convolution, we show that convolution followed by FFT is the most efficient method. It allows small fractional oversampling factor between 1 and 2, thus a minimal computational time, while retaining an excellent image quality.
Date de publication	2010-05-05
Dans	Optics Express 18, nº 10 (5 mai 2010) : 10446–10461.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	16891216
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	f93f6264-749e-4ed1-bd79-831db7fbfe9e
Enregistrement créé	2011-02-20
Enregistrement modifié	2020-04-17

Date de modification :: 2024-05-01