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Proceedings Paper

HoloCam: a subsea holographic camera for recording marine organisms and particles
Author(s): Gary Craig; Stephen J. Alexander; S. Anderson; David C. Hendry; Peter R. Hobson; R. S. Lampitt; Benjamin Lucas-Leclin; Helge Nareid; J. J. Nebrensky; Michael A. Player; Kevin Saw; Keith Tipping; John Watson
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Paper Abstract

The HoloCam system is a major component of a multi-national multi- discipline project known as HoloMar (funded by the European Commission under the MAST III initiative). The project is concerned with the development of pulsed laser holography to analyse and monitor the populations of living organisms and inanimate particles within the world's oceans. We describe here the development, construction and evaluation of a prototype underwater camera, the purpose of which is to record marine organisms and particles, in-situ. Recording using holography provides several advantages over conventional sampling methods in that it allows non-intrusive, non-destructive, high- resolution imaging of large volumes (up to 105 cm3) in three dimensions. The camera incorporates both in-line and off-axis holographic techniques, which allows particles from a few micrometres to tens of centimetres to be captured. In tandem with development of the HoloCam, a dedicated holographic replay system and an automated data extraction and image processing facility are being developed. These will allow, optimisation of the images recorded by the camera, identification of species and particle concentration plotting.

Paper Details

Date Published: 31 August 2000
PDF: 9 pages
Proc. SPIE 4076, Optical Diagnostics for Industrial Applications, (31 August 2000); doi: 10.1117/12.397939
Show Author Affiliations
Gary Craig, Aberdeen Univ. (United Kingdom)
Stephen J. Alexander, Aberdeen Univ. (United Kingdom)
S. Anderson, Aberdeen Univ. (United Kingdom)
David C. Hendry, Aberdeen Univ. (United Kingdom)
Peter R. Hobson, Brunel Univ. (United Kingdom)
R. S. Lampitt, Southampton Univ. (United Kingdom)
Benjamin Lucas-Leclin, Quantel (France)
Helge Nareid, Aberdeen Univ. (United Kingdom)
J. J. Nebrensky, Brunel Univ. (United Kingdom)
Michael A. Player, Aberdeen Univ. (United Kingdom)
Kevin Saw, Southampton Univ. (United Kingdom)
Keith Tipping, Southampton Univ. (United Kingdom)
John Watson, Aberdeen Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 4076:
Optical Diagnostics for Industrial Applications
Neil A. Halliwell, Editor(s)

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