Optical Image Correlation Using Wavelength Multiplexed Volume Holograms.

Abstract

An optical image correlator using a spatial light modulator (SLM) for reference image recording and correlation readout has been demonstrated. The reference image correlation filters are recorded in a volume holographic optical element using wavelength multiplexing. Auto and cross correlations between similar and dissimilar images were compared to determine the image discrimination characteristics of the optical correlator.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1997
Accession Number
ADA323637

Entities

People

  • Feng Zhao
  • Koichi Sayano

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computers
  • Correlators
  • Cross Correlation
  • Detectors
  • Holograms
  • Holographic Optical Elements
  • Images
  • Liquid Crystal Displays
  • Multiplexing
  • Optical Correlators
  • Optical Images
  • Optics
  • Pattern Recognition
  • Quantum Cascade Lasers
  • Semiconductor Lasers
  • Semiconductors
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.