Optical Fringe Analysis Techniques.

Abstract

The use of specklegrams for performing certain types of NDI and NDT has been known for some time yet a method for extracting the data quickly and cheaply has eluded specklegram users. This report discusses a new technique for performing the data reduction of the large amounts of data obtained through speckle interferograms. This new technique correlates an optical mask on a fringe pattern to generate a single line scale proportional to the frequency of the cosine fringe pattern when integrated orthogonally to the fringe line. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA072714

Entities

People

  • Charles Richard Lane
  • T. L. Williamson

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Correlation Techniques
  • Data Reduction
  • Data Storage Systems
  • Delta Functions
  • Displacement
  • Electro-Optics
  • Equations
  • Far Field
  • Frequency
  • Government Procurement
  • Governments
  • Images
  • Optics
  • Photographic Emulsions
  • Wave Propagation

Fields of Study

  • Physics

Readers

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