Feature Articles

COHERENCE-BASED TARGET DETECTION AND
CLASSIFICATION FOR SIDE SCAN SONAR IMAGERY
J. Derek Tucker and Mahmood R. Azimi-Sadjadi (Colorado State University) explore the use of canonical correlation analysis for sonar target detection and classification.

MACHINE VISION-ASSISTED IN-SITU ICHTHYOPLANKTON IMAGING SYSTEM
Dr. Gavriil Tsechpenakis, Cedric Guigand and Dr. Robert K. Cowen (University of Miami) explain a computer vision technology for high-throughput specimen recognition in the new In-Situ Ichthyoplankton Imaging System.

MULTI-AUV COORDINATION IN POOR COMMUNICATION ENVIRONMENTS
Chris C. Sotzing, Dr. David M. Lane (Heriot-Watt University) and Dr. Jonathan Evans (SeeByte Ltd.) use the design and implementation of a multi-agent architecture to increase coordination efficiency in multi-AUV operations. See also www.seebyte.com.

MANAGING RISK IN AUV DEVELOPMENT AND DEPLOYMENT
Justin E. Manley (Battelle) discusses AUVs’ technical and operational risks that users and developers should understand.

POSITION ERROR REDUCTION BROUGHT ABOUT BY ROTATIONAL MOTION
Dr. Shojiro Ishibashi (Japan Agency for Marine-Earth Science and Technology) ponders improving the accuracy of an intertial navigation system loaded on an AUV.

SYNTHETIC APERTURE SONAR IMAGE DESPECKLING
Philippe Courmontagne (Institut Supérieur de l’Electronique et du Numérique) talks about the joint use of an auto-adaptive mean filter and the stochastic matched filter.

SEAMLESS MOSAICKING OF ACOUSTIC VIDEO IMAGES
Akira Asada (University of Tokyo) shows how visual surveillance technology reinforces an underwater security system.

VERTICAL POSITION ESTIMATION FOR UNDERWATER VEHICLES
Ove Kent Hagen (Norwegian Defence Research Establishment) and Bjørn Jalving (Kongsberg Maritime Subsea) improve seabed mapping by filtering pressure measurements using an integrated inertial navigation system. See also www.km.kongsberg.com.

SEA TECHNOLOGY ANNUAL INDEX FOR 2008

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Sea Technology Annual Review & Forecast articles from ocean community leaders... Application of an autonomous self-mooring vehicle.