EURASIP Journal on Advances in Signal Processing

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Research Article
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Design of Large Field-of-View High-Resolution Miniaturized Imaging System

EURASIP Journal on Advances in Signal Processing20072007:059546

https://doi.org/10.1155/2007/59546

©  N. A. Ahuja and N. K. Bose. 2007

Received: 29 September 2006

Accepted: 16 April 2007

Published: 2 July 2007

Abstract

Steps are taken to design the optical system of lenslet array/photoreceptor array plexus on curved surfaces to achieve a large field of view (FOV) with each lenslet capturing a portion of the scene. An optimal sampling rate in the image plane, as determined by the pixel pitch, is found by the use of an information theoretic performance measure. Since this rate turns out to be sub-Nyquist, superresolution techniques can be applied to the multiple low-resolution (LR) images captured on the photoreceptor array to yield a single high-resolution (HR) image of an object of interest. Thus, the computational imaging system proposed is capable of realizing both the specified resolution and specified FOV.

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Authors’ Affiliations

(1)
Department of Electrical Engineering, Spatial and Temporal Signal Processing Center, The Pennsylvania State University

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Copyright

© N. A. Ahuja and N. K. Bose. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.