HERZOG, Charlotte; GRANIER, Xavier; HARMS, Fabrice; ZEITOUN, Philippe; DE LA ROCHEFOUCAULD, Ombeline

doi:10.1364/OL.44.004825

Métadonnées

Licence d’utilisation du document

HERZOG, Charlotte
Imagine Optic
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
Melting the frontiers between Light, Shape and Matter [MANAO]

GRANIER, Xavier
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
Archeovision CNRS

HARMS, Fabrice
Imagine Optic

Langue

Article de revue

Ce document a été publié dans

Optics Letters. 2019, vol. 44, n° 19, p. 4825

Optical Society of America - OSA Publishing

Résumé en anglais

A focused plenoptic camera has the ability to record and separate spatial and directional information of the incoming light. Combined with the appropriate algorithm, 3D scene could be reconstructed from a single acquisition, over a depth range called plenoptic Depth-of-Field. In this article, we study the contrast variations with depth as a way to assess plenoptic Depth-of-Field. We take into account the impact of diffraction, defocus and, magnification on the resulting contrast. We measure the contrast directly on both simulated and acquired images. We confront our simulations with acquired data. We demonstrate the importance of diffraction and magnification in the final contrast. Contrary to classical optics, the maximum of contrast is not centered around the main object plane, but around a shifted position, with a fast and non-symmetric decrease of contrast.< Réduire

Mots clés en anglais

Focused Plenoptic Camera

Contrast

Diffraction

Magnification

Defocus

URI

https://oskar-bordeaux.fr/handle/20.500.12278/181715

DOI

http://dx.doi.org/10.1364/OL.44.004825

Projet Européen

volumetric medical x-ray imaging at extremely low dose

Origine

Importé de hal

Unités de recherche

Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298