Depth Derivation from the Worldview-2 Satellite Using Hyperspectral Imagery

Abstract

The Worldview-2 satellite, scheduled for launch in 2009, will have a multispectral sensor with several additional spectral bands not available on current multispectral sensors. This research investigates the use of the additional yellow spectral band to derive bathymetry. A hyperspectral image acquired from the AVIRIS sensor was used as a substitute image for the Worldview-2 multispectral sensor. The image was processed using the Stumpf et al. (2003) "ratio method" to determine bathymetry in a section of Kaneohe Bay, Hawaii. Depths acquired using the green/blue, yellow/green and yellow/blue ratios were compared to ground truth bathymetry derived from a digital nautical chart. The results indicate that using the Stumpf et al. (2003) algorithm with yellow/green and yellow/blue ratios improves the accuracy of derived depths compared to depths derived using the green/blue ratio, especially in shallow waters.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2009
Accession Number
ADA496889

Entities

People

  • Michael J. Loomis Jr.

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Bathymetry
  • Deep Water
  • Detectors
  • Electromagnetic Radiation
  • Electromagnetic Spectra
  • Geography
  • Hyperspectral Imagery
  • Jet Propulsion
  • Remote Sensing
  • Scattering
  • Shallow Depth
  • Shallow Water
  • Spectra
  • Visible Spectra
  • Water

Readers

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  • Image Processing and Computer Vision.

Technology Areas

  • Space