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Sub-picosecond photon-efficient 3D imaging using single-photon sensors

Active 3D imaging systems have broad applications across disciplines, including biological imaging, remote sensing and robotics. Applications in these domains require fast acquisition times, high timing accuracy, and high detection sensitivity. Single-photon avalanche diodes (SPADs) have emerged as...

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Detalles Bibliográficos
Autores principales: Heide, Felix, Diamond, Steven, Lindell, David B., Wetzstein, Gordon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286372/
https://www.ncbi.nlm.nih.gov/pubmed/30531961
http://dx.doi.org/10.1038/s41598-018-35212-x
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author Heide, Felix
Diamond, Steven
Lindell, David B.
Wetzstein, Gordon
author_facet Heide, Felix
Diamond, Steven
Lindell, David B.
Wetzstein, Gordon
author_sort Heide, Felix
collection PubMed
description Active 3D imaging systems have broad applications across disciplines, including biological imaging, remote sensing and robotics. Applications in these domains require fast acquisition times, high timing accuracy, and high detection sensitivity. Single-photon avalanche diodes (SPADs) have emerged as one of the most promising detector technologies to achieve all of these requirements. However, these detectors are plagued by measurement distortions known as pileup, which fundamentally limit their precision. In this work, we develop a probabilistic image formation model that accurately models pileup. We devise inverse methods to efficiently and robustly estimate scene depth and reflectance from recorded photon counts using the proposed model along with statistical priors. With this algorithm, we not only demonstrate improvements to timing accuracy by more than an order of magnitude compared to the state-of-the-art, but our approach is also the first to facilitate sub-picosecond-accurate, photon-efficient 3D imaging in practical scenarios where widely-varying photon counts are observed.
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spelling pubmed-62863722018-12-19 Sub-picosecond photon-efficient 3D imaging using single-photon sensors Heide, Felix Diamond, Steven Lindell, David B. Wetzstein, Gordon Sci Rep Article Active 3D imaging systems have broad applications across disciplines, including biological imaging, remote sensing and robotics. Applications in these domains require fast acquisition times, high timing accuracy, and high detection sensitivity. Single-photon avalanche diodes (SPADs) have emerged as one of the most promising detector technologies to achieve all of these requirements. However, these detectors are plagued by measurement distortions known as pileup, which fundamentally limit their precision. In this work, we develop a probabilistic image formation model that accurately models pileup. We devise inverse methods to efficiently and robustly estimate scene depth and reflectance from recorded photon counts using the proposed model along with statistical priors. With this algorithm, we not only demonstrate improvements to timing accuracy by more than an order of magnitude compared to the state-of-the-art, but our approach is also the first to facilitate sub-picosecond-accurate, photon-efficient 3D imaging in practical scenarios where widely-varying photon counts are observed. Nature Publishing Group UK 2018-12-07 /pmc/articles/PMC6286372/ /pubmed/30531961 http://dx.doi.org/10.1038/s41598-018-35212-x Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Heide, Felix
Diamond, Steven
Lindell, David B.
Wetzstein, Gordon
Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title_full Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title_fullStr Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title_full_unstemmed Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title_short Sub-picosecond photon-efficient 3D imaging using single-photon sensors
title_sort sub-picosecond photon-efficient 3d imaging using single-photon sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286372/
https://www.ncbi.nlm.nih.gov/pubmed/30531961
http://dx.doi.org/10.1038/s41598-018-35212-x
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