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Towards omni-directional and automated imaging system for measuring oceanic whitecap coverage

Towards omni-directional and automated imaging system for measuring oceanic whitecap coverage
Towards omni-directional and automated imaging system for measuring oceanic whitecap coverage
Accurate measurements of the oceanic whitecap coverage from whitecap images are required for better understanding the air-gas transfer and aerosol production processes. However, this is a challenging task because the whitecap patches are formed immediately after the wave breaks and are spread over a wide area. The main challenges in designing a whitecap imaging instrument are the small field of view of the camera lens, processing large numbers of images, recording data over long time periods, and deployment difficulties in stormy conditions. This paper describes the design of a novel high-resolution optical instrument for imaging oceanic whitecaps and the automated algorithm processing the collected images. The instrument was successfully deployed in 2013 as part of the HiWINGS campaign in the North Atlantic Ocean. The instrument uses a fish-eye camera lens to image the whitecaps in wide angle of view (180º).
1084-7529
515-521
Al-Lashi, Raied S.
0d183a88-9ee8-4643-8fe8-2273e2917689
Webster, Merlin
1716fb59-a687-4062-b46b-82465614e54e
Gunn, Steve R.
306af9b3-a7fa-4381-baf9-5d6a6ec89868
Czerski, Helen
8704500e-b00f-41c0-bfa3-b5f08e7e39d6
Al-Lashi, Raied S.
0d183a88-9ee8-4643-8fe8-2273e2917689
Webster, Merlin
1716fb59-a687-4062-b46b-82465614e54e
Gunn, Steve R.
306af9b3-a7fa-4381-baf9-5d6a6ec89868
Czerski, Helen
8704500e-b00f-41c0-bfa3-b5f08e7e39d6

Al-Lashi, Raied S., Webster, Merlin, Gunn, Steve R. and Czerski, Helen (2018) Towards omni-directional and automated imaging system for measuring oceanic whitecap coverage. Journal of the Optical Society of America A, 35 (4), 515-521. (doi:10.1364/JOSAA.35.000515).

Record type: Article

Abstract

Accurate measurements of the oceanic whitecap coverage from whitecap images are required for better understanding the air-gas transfer and aerosol production processes. However, this is a challenging task because the whitecap patches are formed immediately after the wave breaks and are spread over a wide area. The main challenges in designing a whitecap imaging instrument are the small field of view of the camera lens, processing large numbers of images, recording data over long time periods, and deployment difficulties in stormy conditions. This paper describes the design of a novel high-resolution optical instrument for imaging oceanic whitecaps and the automated algorithm processing the collected images. The instrument was successfully deployed in 2013 as part of the HiWINGS campaign in the North Atlantic Ocean. The instrument uses a fish-eye camera lens to image the whitecaps in wide angle of view (180º).

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Towards Omni-Directional and Automated imaging system_Final2018 - Accepted Manuscript
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josaa-35-4-515
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More information

Accepted/In Press date: 3 February 2018
e-pub ahead of print date: 6 March 2018
Published date: 1 April 2018

Identifiers

Local EPrints ID: 419336
URI: https://eprints.soton.ac.uk/id/eprint/419336
ISSN: 1084-7529
PURE UUID: 08c347c4-97da-4787-bcd7-2d4d7e5e49d3

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Date deposited: 11 Apr 2018 16:30
Last modified: 13 Mar 2019 18:38

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Contributors

Author: Raied S. Al-Lashi
Author: Merlin Webster
Author: Steve R. Gunn
Author: Helen Czerski

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