Optical wide-field tomography of sediment resuspension

Adi Vainiger; Yoav Y. Schechner; Tali Treibitz; Aviadavni; David S. Timor

doi:10.1364/OE.27.00A766

Optical wide-field tomography of sediment resuspension

Adi Vainiger, Yoav Y. Schechner, Tali Treibitz, Aviadavni, David S. Timor

Department of Marine Technologies

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

Abstract

We present a wide-field imaging approach to optically sense underwater sediment resuspension events. It uses wide-field multi-directional views and diffuse backlight. Our approach algorithmically quantifies the amount of material resuspended and its spatiotemporal distribution. The suspended particles affect the radiation that reaches the cameras, hence the captured images. By measuring the radiance during and prior to resuspension, we extract the optical depth on the line of sight per pixel. Using computed tomography (CT) principles, the optical depths yield estimation of the extinction coefficient of the suspension, per voxel. The suspended density is then derived from the reconstructed extinction coefficient.

Original language	English
Pages (from-to)	A766-A778
Journal	Optics Express
Volume	27
Issue number	12
DOIs	https://doi.org/10.1364/OE.27.00A766
State	Published - 10 Jun 2019

Bibliographical note

Funding Information:
The Israeli Ministry of Science, Technology, and Space (MOST) (3-12478). We thank M. Fisher, I. Czerninski, Y. Goldfracht, L. Dehter, B. Herzberg, A. Levy, J. Fischer, S. Cohen, M. Groper, S. Farber for assisting in system construction and experiments. We thank V. Holodovsky, A. Levis, A. Aides, T. Katz, U. Shavit, G. Yahel, S. Grossbard for fruitful discussions, and I. Talmon and J. Erez for technical support. YYS is a Landau Fellow - supported by the Taub Foundation. His work is conducted in the Ollendorff Minerva Center. Minerva is funded through the BMBF. TT is supported by The Leona M. and Harry B. Helmsley Charitable Trust and The Maurice Hatter Foundation.

Funding Information:
We thank M. Fisher, I. Czerninski, Y. Goldfracht, L. Dehter, B. Herzberg, A. Levy , J. Fischer, S. Cohen, M. Groper, S. Farber for assisting in system construction and experiments. We thank V. Holodovsky, A. Levis, A. Aides, T. Katz, U. Shavit, G. Yahel, S. Grossbard for fruitful discussions, and I. Talmon and J. Erez for technical support. YYS is a Landau Fellow - supported by the Taub Foundation. His work is conducted in the Ollendorff Minerva Center. Minerva is funded through the BMBF. TT is supported by The Leona M. and Harry B. Helmsley Charitable Trust and The Maurice Hatter Foundation.

Publisher Copyright:
© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.27.00A766

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title = "Optical wide-field tomography of sediment resuspension",

abstract = "We present a wide-field imaging approach to optically sense underwater sediment resuspension events. It uses wide-field multi-directional views and diffuse backlight. Our approach algorithmically quantifies the amount of material resuspended and its spatiotemporal distribution. The suspended particles affect the radiation that reaches the cameras, hence the captured images. By measuring the radiance during and prior to resuspension, we extract the optical depth on the line of sight per pixel. Using computed tomography (CT) principles, the optical depths yield estimation of the extinction coefficient of the suspension, per voxel. The suspended density is then derived from the reconstructed extinction coefficient.",

author = "Adi Vainiger and Schechner, {Yoav Y.} and Tali Treibitz and Aviadavni and Timor, {David S.}",

note = "Funding Information: The Israeli Ministry of Science, Technology, and Space (MOST) (3-12478). We thank M. Fisher, I. Czerninski, Y. Goldfracht, L. Dehter, B. Herzberg, A. Levy, J. Fischer, S. Cohen, M. Groper, S. Farber for assisting in system construction and experiments. We thank V. Holodovsky, A. Levis, A. Aides, T. Katz, U. Shavit, G. Yahel, S. Grossbard for fruitful discussions, and I. Talmon and J. Erez for technical support. YYS is a Landau Fellow - supported by the Taub Foundation. His work is conducted in the Ollendorff Minerva Center. Minerva is funded through the BMBF. TT is supported by The Leona M. and Harry B. Helmsley Charitable Trust and The Maurice Hatter Foundation. Funding Information: We thank M. Fisher, I. Czerninski, Y. Goldfracht, L. Dehter, B. Herzberg, A. Levy , J. Fischer, S. Cohen, M. Groper, S. Farber for assisting in system construction and experiments. We thank V. Holodovsky, A. Levis, A. Aides, T. Katz, U. Shavit, G. Yahel, S. Grossbard for fruitful discussions, and I. Talmon and J. Erez for technical support. YYS is a Landau Fellow - supported by the Taub Foundation. His work is conducted in the Ollendorff Minerva Center. Minerva is funded through the BMBF. TT is supported by The Leona M. and Harry B. Helmsley Charitable Trust and The Maurice Hatter Foundation. Publisher Copyright: {\textcopyright} 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement",

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Optical wide-field tomography of sediment resuspension

Abstract

Bibliographical note

ASJC Scopus subject areas

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