Underwater Inspection of Navigation Structures with an Acoustic Camera

Abstract

The US Army Corps of Engineers (USACE) operations within turbid waters creates a need for better ways to inspect, quantify, monitor, and locate infrastructure in a difficult environment. Inspection methods have included dewatering, tactile diver inspection, and side-scan or multi-beam sonars. These older approaches can have high cost, inherent danger, and/or limited output quality. Newer technologies that use highly focused acoustic beams could greatly improve underwater observation. The research described in this report addresses the limitations and expands the capabilities of an underwater, high-resolution acoustical imaging system for USACE. These efforts have produced new hardware and software and associated methods that address specific needs in system deployment, data collection, and analysis. During this research, continuous leveraging of reimbursable needs within USACE districts has produced an invaluable view of performance, capabilities, and limitations. It is believed that acoustical imaging technology will be a catalyst for the development of other advanced inspection capabilities within the Corps navigation system.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2013
Accession Number
ADA584035

Entities

People

  • James A. Evans
  • Richard Haskins
  • Terry W. Warren

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Acquisition
  • Cameras
  • Coordinate Systems
  • Data Acquisition
  • Detection
  • Engineers
  • Environment
  • Grazing Angles
  • High Resolution
  • Information Systems
  • Measurement
  • Navigation
  • Operating Systems
  • Physics Laboratories
  • Remotely Piloted Vehicles
  • Structural Components
  • User Interface

Fields of Study

  • Physics

Readers

  • Facility/Structural Engineering.
  • Image Processing and Computer Vision.
  • Maritime Combat Support and Expeditionary Logistics.