FOURIER ANALYSIS AND NONLINEAR OPTICAL SYSTEMS,

Abstract

The Modulation Transfer Function is based on Fourier techniques which imply the validity of the principle of superposition. This is clearly violated in the nonlinear film development process. It becomes necessary to face up to this question if one is to know how much confidence to place in conclusions resulting from such analysis of incoherently illuminated systems. A pseudotransfer function is defined to represent an artificial linear filter which, if it replaced the actual optical and photographic process, would result in precisely the same image as would be produced by the real system. The significance of such a function in a statistical approach and the results of a typical calculation are presented for purpose of illustration. Some of the conditions under which the atmospheric transfer function remains undefined are also reviewed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0707464

Entities

People

  • Adolph Baker
  • David Korff

Organizations

  • Lowell Technological Institute

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Fourier Analysis
  • Mathematics
  • Modulation
  • Principle Of Superposition
  • Transfer Functions

Readers

  • Calculus or Mathematical Analysis
  • Image Processing and Computer Vision.
  • Optical Physics and Photonics.