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Proceedings Paper

Comparison of reconstruction approaches for plenoptic imaging systems
Author(s): Charlotte Herzog; Guillaume Dovillaire; Xavier Granier; Fabrice Harms; Xavier Levecq; Elena Longo; Loïs Mignard-Debise; Philippe Zeitoun; Ombeline de La Rochefoucauld
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Paper Abstract

Plenoptic cameras provide single-shot 3D imaging capabilities, based on the acquisition of the Light-Field, which corresponds to a spatial and directional sampling of all the rays of a scene reaching a detector. Specific algorithms applied on raw Light-Field data allow for the reconstruction of an object at different depths of the scene.

Two different plenoptic imaging geometries have been reported, associated with two reconstruction algorithms: the traditional or unfocused plenoptic camera, also known as plenoptic camera 1.0, and the focused plenoptic camera, also called plenoptic camera 2.0. Both systems use the same optical elements, but placed at different locations: a main lens, a microlens array and a detector. These plenoptic systems have been presented as independent. Here we show the continuity between them, by simply moving the position of an object. We also compare the two reconstruction methods. We theoretically show that the two algorithms are intrinsically based on the same principle and could be applied to any Light-Field data. However, the resulting images resolution and quality depend on the chosen algorithm.

Paper Details

Date Published: 24 May 2018
PDF: 11 pages
Proc. SPIE 10677, Unconventional Optical Imaging, 106772U (24 May 2018); doi: 10.1117/12.2306800
Show Author Affiliations
Charlotte Herzog, Imagine Optic SA (France)
!!Lab. Photonique, Numérique et Nanosciences, Institut d’Optique Graduate School, CNRS, Univ. Bordeaux (France)
Inria Bordeaux (France)
Guillaume Dovillaire, Imagine Optic SA (France)
Xavier Granier, !!Lab. Photonique, Numérique et Nanosciences, Institut d’Optique Graduate School, CNRS, Univ. Bordeaux (France)
Inria Bordeaux (France)
Lab. Bordelais de Recherche en Informatique UMR5800, CNRS, Univ. Bordeaux (France)
Fabrice Harms, Imagine Optic SA (France)
Xavier Levecq, Imagine Optic SA (France)
Elena Longo, Lab. d’Optique Appliquée, ENSTA-CNRS-Ecole Polytechnique, Univ. Paris-Saclay (France)
Loïs Mignard-Debise, Lab. Photonique, Numérique et Nanosciences Institut d’Optique Graduate School, CNRS, Univ. Bordeaux (France)
Inria Bordeaux (France)
Philippe Zeitoun, Lab. d’Optique Appliquée, ENSTA-CNRS-Ecole Polytechnique- Univ. Paris-Saclay (France)
Ombeline de La Rochefoucauld, Imagine Optic SA (France)

Published in SPIE Proceedings Vol. 10677:
Unconventional Optical Imaging
Corinne Fournier; Marc P. Georges; Gabriel Popescu, Editor(s)

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