Hyperspectral Imaging Under Low Illumination with a Single Photon Camera

Conventional sensors for hyperspectral imaging are limited by noise when operated in low illumination conditions. Recent advances in single-photon avalanche diode (SPAD) arrays provide image sensors capable of single photon counting imaging. Such devices provides camera systems which can operate und...

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Published in2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) pp. 1 - 4
Main Authors Griffiths, Alexander D., Chen, Haochang, Herrnsdorf, Johannes, Li, David, Henderson, Robert K., Strain, Michael J., Dawson, Martin D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2018
Subjects
Cameras
Hyperspectral imaging
Image sensors
LED
Light emitting diodes
Lighting
Photonics
SPAD
Online AccessGet full text
DOI10.1109/BICOP.2018.8658323

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Abstract Conventional sensors for hyperspectral imaging are limited by noise when operated in low illumination conditions. Recent advances in single-photon avalanche diode (SPAD) arrays provide image sensors capable of single photon counting imaging. Such devices provides camera systems which can operate under low illumination levels and high frame rates, with fully digital in-pixel processing capabilities. Here, we present a hyperspectral imaging system based on low level illumination of a target scene using nine LEDs, each with different emission wavelengths. The backscattered light is captured by a SPAD camera, which can recover spectral information based on the number of photon counts received for each illumination wavelength.
AbstractList Conventional sensors for hyperspectral imaging are limited by noise when operated in low illumination conditions. Recent advances in single-photon avalanche diode (SPAD) arrays provide image sensors capable of single photon counting imaging. Such devices provides camera systems which can operate under low illumination levels and high frame rates, with fully digital in-pixel processing capabilities. Here, we present a hyperspectral imaging system based on low level illumination of a target scene using nine LEDs, each with different emission wavelengths. The backscattered light is captured by a SPAD camera, which can recover spectral information based on the number of photon counts received for each illumination wavelength.
Author Li, David
Griffiths, Alexander D.
Henderson, Robert K.
Strain, Michael J.
Chen, Haochang
Dawson, Martin D.
Herrnsdorf, Johannes
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  givenname: Haochang
  surname: Chen
  fullname: Chen, Haochang
  organization: SIPBS, University of Strathclyde, Glasgow, UK
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  givenname: Martin D.
  surname: Dawson
  fullname: Dawson, Martin D.
  organization: Institute of Photonics, University of Strathclyde, Glasgow, UK
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Snippet Conventional sensors for hyperspectral imaging are limited by noise when operated in low illumination conditions. Recent advances in single-photon avalanche...
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SubjectTerms Cameras
Hyperspectral imaging
Image sensors
LED
Light emitting diodes
Lighting
Photonics
SPAD
Title Hyperspectral Imaging Under Low Illumination with a Single Photon Camera
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