Fast full-color computational imaging with single-pixel detectors

Welsh, S.S., Edgar, M.P., Bowman, R., Jonathan, P., Sun, B. and Padgett, M.J. (2013) Fast full-color computational imaging with single-pixel detectors. Optics Express, 21(20), pp. 23068-23074. (doi: 10.1364/OE.21.023068)

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Single-pixel detectors can be used as imaging devices by making use of structured illumination. These systems work by correlating a changing incident light field with signals measured on a photodiode to derive an image of an object. In this work we demonstrate a system that utilizes a digital light projector to illuminate a scene with approximately 1300 different light patterns every second and correlate these with the back scattered light measured by three spectrally-filtered single-pixel photodetectors to produce a full-color high-quality image in a few seconds of data acquisition. We utilize a differential light projection method to self normalize the measured signals, improving the reconstruction quality whilst making the system robust to external sources of noise. This technique can readily be extended for imaging applications at non-visible wavebands.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles and Edgar, Dr Matthew and Sun, Mr Baoqing
Authors: Welsh, S.S., Edgar, M.P., Bowman, R., Jonathan, P., Sun, B., and Padgett, M.J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):2156-7085
Copyright Holders:Copyright © 2013 Optical Society of America
First Published:First published in Optics Express 21(20):23068-23074
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
549871Challenges in Orbital Angular MomentumMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I012451/1P&A - PHYSICS & ASTRONOMY