Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections

K. P. Ziock; C. B. Boehnen; J. M. Ernst; L. Fabris; J. P. Hayward; T. P. Karnowski; V. C. Paquit; D. R. Patlolla; D. G. Trombino

doi:10.1016/j.nima.2015.08.040

Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections

K. P. Ziock, C. B. Boehnen, J. M. Ernst, L. Fabris, J. P. Hayward, T. P. Karnowski, V. C. Paquit, D. R. Patlolla, D. G. Trombino

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Passive radiation detection remains one of the most acceptable means of ascertaining the presence of illicit nuclear materials. In maritime applications it is most effective against small to moderately sized vessels, where attenuation in the target vessel is of less concern. Unfortunately, imaging methods that can remove source confusion, localize a source, and avoid other systematic detection issues cannot be easily applied in ship-to-ship inspections because relative motion of the vessels blurs the results over many pixels, significantly reducing system sensitivity. This is particularly true for the smaller watercraft, where passive inspections are most valuable. We have developed a combined gamma-ray, stereo visible-light imaging system that addresses this problem. Data from the stereo imager are used to track the relative location and orientation of the target vessel in the field of view of a coded-aperture gamma-ray imager. Using this information, short-exposure gamma-ray images are projected onto the target vessel using simple tomographic back-projection techniques, revealing the location of any sources within the target. The complex autonomous tracking and image reconstruction system runs in real time on a 48-core workstation that deploys with the system.

Original language	English
Pages (from-to)	116-126
Number of pages	11
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	805
DOIs	https://doi.org/10.1016/j.nima.2015.08.040
State	Published - Jan 1 2016

Funding

This work was performed under the auspices of the US Department of Energy by Oak Ridge National Laboratory under Contract DE-AC05-00OR22725 and by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 . The project was funded by the U.S. Department of Energy, National Nuclear Security Administration, Office of Defense Nuclear Nonproliferation Research and Development (DNN R&D) .

Keywords

Coded-aperture
Gamma-ray imager
Machine vision
Nuclear imaging
Position-sensitive detector
Vessel tracking

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10.1016/j.nima.2015.08.040

Cite this

Ziock, K. P., Boehnen, C. B., Ernst, J. M., Fabris, L., Hayward, J. P., Karnowski, T. P., Paquit, V. C., Patlolla, D. R., & Trombino, D. G. (2016). Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 805, 116-126. https://doi.org/10.1016/j.nima.2015.08.040

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abstract = "Passive radiation detection remains one of the most acceptable means of ascertaining the presence of illicit nuclear materials. In maritime applications it is most effective against small to moderately sized vessels, where attenuation in the target vessel is of less concern. Unfortunately, imaging methods that can remove source confusion, localize a source, and avoid other systematic detection issues cannot be easily applied in ship-to-ship inspections because relative motion of the vessels blurs the results over many pixels, significantly reducing system sensitivity. This is particularly true for the smaller watercraft, where passive inspections are most valuable. We have developed a combined gamma-ray, stereo visible-light imaging system that addresses this problem. Data from the stereo imager are used to track the relative location and orientation of the target vessel in the field of view of a coded-aperture gamma-ray imager. Using this information, short-exposure gamma-ray images are projected onto the target vessel using simple tomographic back-projection techniques, revealing the location of any sources within the target. The complex autonomous tracking and image reconstruction system runs in real time on a 48-core workstation that deploys with the system.",

keywords = "Coded-aperture, Gamma-ray imager, Machine vision, Nuclear imaging, Position-sensitive detector, Vessel tracking",

author = "Ziock, {K. P.} and Boehnen, {C. B.} and Ernst, {J. M.} and L. Fabris and Hayward, {J. P.} and Karnowski, {T. P.} and Paquit, {V. C.} and Patlolla, {D. R.} and Trombino, {D. G.}",

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doi = "10.1016/j.nima.2015.08.040",

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Ziock, KP, Boehnen, CB, Ernst, JM, Fabris, L, Hayward, JP, Karnowski, TP , Paquit, VC, Patlolla, DR & Trombino, DG 2016, 'Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 805, pp. 116-126. https://doi.org/10.1016/j.nima.2015.08.040

Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections. / Ziock, K. P.; Boehnen, C. B.; Ernst, J. M. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 805, 01.01.2016, p. 116-126.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections

AU - Ziock, K. P.

AU - Boehnen, C. B.

AU - Ernst, J. M.

AU - Fabris, L.

AU - Hayward, J. P.

AU - Karnowski, T. P.

AU - Paquit, V. C.

AU - Patlolla, D. R.

AU - Trombino, D. G.

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N2 - Passive radiation detection remains one of the most acceptable means of ascertaining the presence of illicit nuclear materials. In maritime applications it is most effective against small to moderately sized vessels, where attenuation in the target vessel is of less concern. Unfortunately, imaging methods that can remove source confusion, localize a source, and avoid other systematic detection issues cannot be easily applied in ship-to-ship inspections because relative motion of the vessels blurs the results over many pixels, significantly reducing system sensitivity. This is particularly true for the smaller watercraft, where passive inspections are most valuable. We have developed a combined gamma-ray, stereo visible-light imaging system that addresses this problem. Data from the stereo imager are used to track the relative location and orientation of the target vessel in the field of view of a coded-aperture gamma-ray imager. Using this information, short-exposure gamma-ray images are projected onto the target vessel using simple tomographic back-projection techniques, revealing the location of any sources within the target. The complex autonomous tracking and image reconstruction system runs in real time on a 48-core workstation that deploys with the system.

AB - Passive radiation detection remains one of the most acceptable means of ascertaining the presence of illicit nuclear materials. In maritime applications it is most effective against small to moderately sized vessels, where attenuation in the target vessel is of less concern. Unfortunately, imaging methods that can remove source confusion, localize a source, and avoid other systematic detection issues cannot be easily applied in ship-to-ship inspections because relative motion of the vessels blurs the results over many pixels, significantly reducing system sensitivity. This is particularly true for the smaller watercraft, where passive inspections are most valuable. We have developed a combined gamma-ray, stereo visible-light imaging system that addresses this problem. Data from the stereo imager are used to track the relative location and orientation of the target vessel in the field of view of a coded-aperture gamma-ray imager. Using this information, short-exposure gamma-ray images are projected onto the target vessel using simple tomographic back-projection techniques, revealing the location of any sources within the target. The complex autonomous tracking and image reconstruction system runs in real time on a 48-core workstation that deploys with the system.

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KW - Gamma-ray imager

KW - Machine vision

KW - Nuclear imaging

KW - Position-sensitive detector

KW - Vessel tracking

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SN - 0168-9002

VL - 805

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EP - 126

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Motion correction for passive radiation imaging of small vessels in ship-to-ship inspections

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Keywords

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