Deep learning optimized single-pixel LiDAR

Radwell, N., Johnson, S. D. , Edgar, M. P., Higham, C. F., Murray-Smith, R. and Padgett, M. J. (2019) Deep learning optimized single-pixel LiDAR. Applied Physics Letters, 115(23), 231101. (doi: 10.1063/1.5128621)

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Abstract

Interest in autonomous transport has led to a demand for 3D imaging technologies capable of resolving fine details at long range. Light detection and ranging (LiDAR) systems have become a key technology in this area, with depth information typically gained through time-of-flight photon-counting measurements of a scanned laser spot. Single-pixel imaging methods offer an alternative approach to spot-scanning, which allows a choice of sampling basis. In this work, we present a prototype LiDAR system, which compressively samples the scene using a deep learning optimized sampling basis and reconstruction algorithms. We demonstrate that this approach improves scene reconstruction quality compared to an orthogonal sampling method, with reflectivity and depth accuracy improvements of 57% and 16%, respectively, for one frame per second acquisition rates. This method may pave the way for improved scan-free LiDAR systems for driverless cars and for fully optimized sampling to decision-making pipelines.

Item Type:Articles
Additional Information:This research was also funded by H2020 European Research Council (ERC) (PhotUntangle, 804626)
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Murray-Smith, Professor Roderick and Padgett, Professor Miles and Edgar, Dr Matthew and Johnson, Dr Steven and Radwell, Dr Neal and Higham, Dr Catherine
Authors: Radwell, N., Johnson, S. D., Edgar, M. P., Higham, C. F., Murray-Smith, R., and Padgett, M. J.
College/School:College of Science and Engineering > School of Computing Science
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Applied Physics Letters
Publisher:AIP Publishing
ISSN:0003-6951
ISSN (Online):1077-3118
Published Online:02 December 2019
Copyright Holders:Copyright © 2019 The Authors
First Published:First published in Applied Physics Letters 115(23):231101
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190841UK Quantum Technology Hub in Enhanced Quantum ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/M01326X/1P&S - Physics & Astronomy
169636Twists and more: the complex shape of lightMiles PadgettEuropean Research Council (ERC)340507P&S - Physics & Astronomy