Optical wide-field tomography of sediment resuspension

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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)A766-A778
JournalOptics Express
Volume27
Issue number12
DOIs
StatePublished - 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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