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Journal of Electronic Imaging

Optimal design and critical analysis of a high-resolution video plenoptic demonstrator
Author(s): Valter Drazic; Jean-Jacques Sacré; Arno Schubert; Jérôme Bertrand; Etienne Blonde
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Paper Abstract

A plenoptic camera is a natural multiview acquisition device also capable of measuring distances by correlating a set of images acquired under different parallaxes. Its single lens and single sensor architecture have two downsides: limited resolution and limited depth sensitivity. As a first step and in order to circumvent those shortcomings, we investigated how the basic design parameters of a plenoptic camera optimize both the resolution of each view and its depth-measuring capability. In a second step, we built a prototype based on a very high resolution Red One® movie camera with an external plenoptic adapter and a relay lens. The prototype delivered five video views of 820 × 410. The main limitation in our prototype is view crosstalk due to optical aberrations that reduce the depth accuracy performance. We simulated some limiting optical aberrations and predicted their impact on the performance of the camera. In addition, we developed adjustment protocols based on a simple pattern and analysis of programs that investigated the view mapping and amount of parallax crosstalk on the sensor on a pixel basis. The results of these developments enabled us to adjust the lenslet array with a submicrometer precision and to mark the pixels of the sensor where the views do not register properly.

Paper Details

Date Published: 24 February 2012
PDF: 11 pages
J. Electron. Imag. 21(1) 011007 doi: 10.1117/1.JEI.21.1.011007
Published in: Journal of Electronic Imaging Volume 21, Issue 1
Show Author Affiliations
Valter Drazic, Technicolor S.A. (France)
Jean-Jacques Sacré, Technicolor S.A. (France)
Arno Schubert, Technicolor S.A. (France)
Jérôme Bertrand, Technicolor S.A. (France)
Etienne Blonde, Technicolor S.A. (France)

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