Range Imaging for Underwater Vision Enhancement Metadata

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  • Main Title Range Imaging for Underwater Vision Enhancement


  • Author: Rish, J.W.
    Creator Type: Personal
  • Author: Blume, B.
    Creator Type: Personal
  • Author: Nellums, B.
    Creator Type: Personal
  • Author: Sackos, J.
    Creator Type: Personal
  • Author: Foster, J.
    Creator Type: Personal
  • Author: Wood, J.L.
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: US Department of Energy (United States)


  • Name: Sandia National Laboratories
    Place of Publication: Albuquerque, New Mexico
    Additional Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)


  • Creation: 1999-04-19


  • English


  • Content Description: This paper presents results from a series of preliminary tests to evaluate a scannerless range-imaging device as a potential sensory enhancement tool for divers and as a potential identification sensor for deployment on small unmanned underwater vehicles. The device, developed by Sandia National Laboratories, forms an image on the basis of point-to-point range to the target rather than an intensity map. The range image is constructed through a classical continuous wave phase detection technique in which the light source is amplitude modulated at radio frequencies. The receiver incorporates a gain-modulated image intensifier, and range information is calculated on the basis of the phase difference between the transmitted and reflected signal. The initial feasibility test at the Coastal Systems Station showed the device to be effective at imaging low-contrast underwater targets such as concertina wire. It also demonstrated success at imaging a 21-inch sphere at a depth of 10 feet in the water column through a wavy air-water interface.
  • Physical Description: 11 p.


  • Keyword: Underwater
  • Keyword: Light Sources
  • Keyword: Amplitudes
  • Keyword: Design
  • Keyword: Range Finders
  • Keyword: Submarines
  • Keyword: Detection
  • Keyword: Image Intensifiers
  • Keyword: Vision
  • Keyword: Image Processing
  • STI Subject Categories: 47 Other Instrumentation


  • Conference: SPIE AeroSense Symposium Conference 3711, Orlando, FL (US), 04/04/1999--04/10/1999


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: SAND99-0974C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 5836
  • Archival Resource Key: ark:/67531/metadc698475


  • Display Note: OSTI as DE00005836
  • Display Note: Medium: P; Size: 11 pages