Image Correlation Using Noncoherent Illumination.

Abstract

Theoretical and experimental studies of two distinct electro-optic systems for automatic pattern recognition are reported. One uses a novel wide-band frequency plane filter, i.e., an achromatized holographic matched filter system. The second uses a virtual twin-image interferometer together with a Fourier achromat and a photodetector to form a hybrid electro optic processor that is potentially capable of high rate automatic sorting for incoherent imagery of very large space-bandwidth product. Both have been studied using noncoherent spectrally broadband illumination. Also excellent progress is reported on our related studies of broadband holographic optical elements and an off-axis Fourier transform achromat. With coherent illumination the author reports a means for automatic image quality evaluation. The scattering of light by dielectric and conducting cylinders has been studied theoretically and experimentally with an emphasis on remote optical metrology. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1983
Accession Number
ADA129744

Entities

People

  • Nicholas George

Organizations

  • University of Rochester

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bandwidth
  • Broadband
  • Detection
  • Detectors
  • Diffraction
  • Frequency
  • Holographic Optical Elements
  • Image Recognition
  • Information Processing
  • Interferometers
  • Matched Filters
  • Optical Detectors
  • Optics
  • Pattern Recognition
  • Recognition
  • Scattering
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Optical Physics and Photonics.

Technology Areas

  • AI & ML
  • Space
  • Space - Space Objects