Superimposed multi-resolution imaging

Carles Santacana, G. , Babington, J., Wood, A., Ralph, J. F. and Harvey, A. R. (2017) Superimposed multi-resolution imaging. Optics Express, 25(26), pp. 33043-33055. (doi: 10.1364/OE.25.033043)

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We present a novel approach to foveated imaging based on dual-aperture optics that superimpose two images on a single sensor, thus attaining a pronounced foveal function with reduced optical complexity. Each image captures the scene at a different magnification and therefore the system simultaneously captures a wide field of view and a high acuity at a central region. This approach enables arbitrary magnification ratios using a relatively simple system, which would be impossible using conventional optical design, and is of importance in applications where the cost per pixel is high. The acquired superimposed image can be processed to perform enhanced object tracking and recognition over a wider field of view and at an increased angular resolution for a given limited pixel count. Alternatively, image reconstruction can be used to separate the image components enabling the reconstruction of a foveated image for display. We demonstrate these concepts through ray-tracing simulation of practical optical systems with computational recovery.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Carles Santacana, Dr Guillem and Harvey, Professor Andy
Authors: Carles Santacana, G., Babington, J., Wood, A., Ralph, J. F., and Harvey, A. R.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):1094-4087
Published Online:19 December 2017
Copyright Holders:Copyright © 2017 Optical Society of America
First Published:First published in Optics Express 25(26):33043-33055
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
729121Seeing within extended volumes and 3D structures: 3D imaging and applicationsGuillem Carles SantacanaLeverhulme Trust (LEVERHUL)ECF-2016-757S&E P&A - PHYSICS & ASTRONOMY