Spatial filtering for zero-order and twin-image elimination in digital off-axis holography.

Détails

ID Serval
serval:BIB_15EB7A3FFD74
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Spatial filtering for zero-order and twin-image elimination in digital off-axis holography.
Périodique
Applied Optics
Auteur(s)
Cuche E., Marquet P., Depeursinge C.
ISSN
0003-6935
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
39
Numéro
23
Pages
4070-4075
Langue
anglais
Résumé
Off-axis holograms recorded with a CCD camera are numerically reconstructed with a calculation of scalar diffraction in the Fresnel approximation. We show that the zero order of diffraction and the twin image can be digitally eliminated by means of filtering their associated spatial frequencies in the computed Fourier transform of the hologram. We show that this operation enhances the contrast of the reconstructed images and reduces the noise produced by parasitic reflections reaching the hologram plane with an incidence angle other than that of the object wave.
Pubmed
Web of science
Création de la notice
10/03/2008 16:40
Dernière modification de la notice
20/08/2019 12:45
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