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Proceedings Paper

Evaluation of multispectral plenoptic camera
Author(s): Lingfei Meng; Ting Sun; Rich Kosoglow; Kathrin Berkner
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Paper Abstract

Plenoptic cameras enable capture of a 4D lightfield, allowing digital refocusing and depth estimation from data captured with a compact portable camera. Whereas most of the work on plenoptic camera design has been based a simplistic geometric-optics-based characterization of the optical path only, little work has been done of optimizing end-to-end system performance for a specific application. Such design optimization requires design tools that need to include careful parameterization of main lens elements, as well as microlens array and sensor characteristics. In this paper we are interested in evaluating the performance of a multispectral plenoptic camera, i.e. a camera with spectral filters inserted into the aperture plane of the main lens. Such a camera enables single-snapshot spectral data acquisition.1–3 We first describe in detail an end-to-end imaging system model for a spectrally coded plenoptic camera that we briefly introduced in.4 Different performance metrics are defined to evaluate the spectral reconstruction quality. We then present a prototype which is developed based on a modified DSLR camera containing a lenslet array on the sensor and a filter array in the main lens. Finally we evaluate the spectral reconstruction performance of a spectral plenoptic camera based on both simulation and measurements obtained from the prototype.

Paper Details

Date Published: 4 February 2013
PDF: 7 pages
Proc. SPIE 8660, Digital Photography IX, 86600D (4 February 2013); doi: 10.1117/12.2006293
Show Author Affiliations
Lingfei Meng, Ricoh Innovations, Inc. (United States)
Ting Sun, Ricoh Innovations, Inc. (United States)
Rich Kosoglow, Ricoh Innovations, Inc. (United States)
Kathrin Berkner, Ricoh Innovations, Inc. (United States)

Published in SPIE Proceedings Vol. 8660:
Digital Photography IX
Nitin Sampat; Sebastiano Battiato, Editor(s)

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