Share Email Print
cover

Proceedings Paper

Proposed digital holographic 3D mapping of coral beds
Author(s): R. L. Kendrick; Ray Bell; Taylor Grow; Thomas Höft; J. C. Marron; Nathan Seldomridge; Eric Smith
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Digital Holography is a technique which provides a measurement of the complex field reflecting from a coherently illuminated object. When the measurement is performed with two carefully chosen wavelengths a phase difference map can be created providing a three dimensional map of the object. We present results from a laboratory experiment where the surface contours of coral are measured in seawater. Contour maps with step sizes on the order of 0.1 mm can easily be obtained. We propose that this technique be used to remotely monitor the growth of coral in an effort to quantify the health of coral beds. The technique is effective from space, aircraft, ships, buoys or rigid platforms such as a pier. In the last few years we have been successfully using this technique to measure objects through very turbulent atmosphere at ranges of up to 700 meters and we are now applying the concept to shoreline applications.

Paper Details

Date Published: 19 December 2008
PDF: 8 pages
Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 71500H (19 December 2008); doi: 10.1117/12.804749
Show Author Affiliations
R. L. Kendrick, Lockheed Martin Advanced Technology Ctr. (United States)
Ray Bell, Lockheed Martin Advanced Technology Ctr. (United States)
Taylor Grow, Lockheed Martin Coherent Technologies (United States)
Thomas Höft, Lockheed Martin Coherent Technologies (United States)
J. C. Marron, Lockheed Martin Coherent Technologies (United States)
Nathan Seldomridge, Lockheed Martin Coherent Technologies (United States)
Eric Smith, Lockheed Martin Advanced Technology Ctr. (United States)


Published in SPIE Proceedings Vol. 7150:
Remote Sensing of Inland, Coastal, and Oceanic Waters
Robert J. Frouin; Serge Andrefouet; Hiroshi Kawamura; Mervyn J. Lynch; Delu Pan; Trevor Platt, Editor(s)

© SPIE. Terms of Use
Back to Top