Matched Image Formation/Digital Processing Systems.

Abstract

Three design tools for hybrid optical/digital imaging systems have been developed that provide new ways of designing the non-conventional imaging systems that are optimum for extended depth of field/focus, and for passively determining the range to objects in a scene. The first tool developed was a defocus transfer function (DTF) for imaging systems with radially symmetric pupils. The DTF allows one to visualize how the modulation transfer function (MTF) will change with focus. Prior work was valid only for one-dimensional optical systems. The second tool uses a form of a Radon-Wigner distribution to show the impulse response, or point spread function, as the focus changes. The third tool is the use of linear transformation operators to analyze and simulate optical systems. These three tools are proving to be very' powerful in the design of hybrid optical/signal processing systems.

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1997
Accession Number
ADA328217

Entities

People

  • E. R. Dowski
  • Greg Johnson
  • Sara Bradburn
  • W. T. Cathey

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Ambiguity
  • Cameras
  • Classification
  • Coding
  • Colorado
  • Communication Systems
  • Computer Programming
  • Coordinate Systems
  • Decoding
  • Engineering
  • Frequency Domain
  • Military Research
  • Range Finding
  • Security
  • Technology Transfer
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.