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Proceedings Paper

Generation and fusion of multiple image representations in automatic corrosion detection algorithms used with shipboard tank video inspection systems
Author(s): Bruce N. Nelson; Paul Slebodnick; Edward J. Lemieux; Matt Krupa; Robert Preisser; Keith Lucas
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Paper Abstract

Coatings damage in shipboard tanks is presently assessed using Certified Coatings Inspectors. Prior to a coatings inspector entering a tank, the tank must be emptied and certified gas free. These requirements combined with the limited number of certified coatings inspectors available at shipyards and Naval Bases significantly increases the cost and the logistical requirements associated with performing shipboard tank inspections. There is additionally significant variation in damage assessments made by different inspectors. To overcome these difficulties, the Naval Research Laboratory has developed two video inspection systems that obviate requirements for both certifying tanks gas free and for emptying the tank prior to performing an inspection. These systems also obviate requirements for inspector presence during tank inspections. The Naval Research Laboratory has also developed an automatic corrosion detection algorithm. The corrosion detection algorithm currently employs two independent algorithms that individually assess the tank coatings damage. The independent damage assessments are than fused to attain a single coatings damage value. In testing performed to date, it has been shown that the corrosion detection algorithm significantly reduces the effect of inspector-to-inspector variability and provides an accurate assessment of tank coatings damage. This in turn makes it significantly easier to prioritize ship maintenance.

Paper Details

Date Published: 6 March 2002
PDF: 12 pages
Proc. SPIE 4731, Sensor Fusion: Architectures, Algorithms, and Applications VI, (6 March 2002); doi: 10.1117/12.458375
Show Author Affiliations
Bruce N. Nelson, Geo-Centers, Inc. (United States)
Paul Slebodnick, Naval Research Lab. (United States)
Edward J. Lemieux, Naval Research Lab. (United States)
Matt Krupa, Naval Research Lab. (United States)
Robert Preisser, Geo-Centers, Inc. (United States)
Keith Lucas, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 4731:
Sensor Fusion: Architectures, Algorithms, and Applications VI
Belur V. Dasarathy, Editor(s)

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