Target/Background Polarization Profiles Using a COTS Digital Camera

Abstract

This paper develops the methodology to obtain polarization profiles of natural, day light scenes using a COTS (commercial-off-the-shelf) digital camera. It calculates the Stokes parameters for each scene pixel along with the degree of polarization, azimuth angle, sign and ellipticity for each of the color components. The noise characteristics of the digital camera are analyzed along with a detailed calibration of the imagery for target detection applications. A number of MatLab software programs were written including image analysis algorithms, graphics routines, polarization calculations and RGB value conversion to optical density. A pseudo color scheme was developed for encoding the various polarization parameters and comparing theoretical results with empirical data. Example imagery is presented of the generic methodology.

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Document Details

Document Type
Technical Report
Publication Date
Aug 15, 2000
Accession Number
ADA459795

Entities

People

  • Grant Gerhart
  • Roy Matchko

Organizations

  • Tank-automotive and Armaments Command

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Calibration
  • Cameras
  • Detection
  • Digital Cameras
  • Information Operations
  • Polarization
  • Target Detection

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Computer Vision.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering