Correlation on Noisy Images

Abstract

A computer program can simulate star-shaped images and a correlation between two different images on 128 by 128 matrices. The Fourier transform, in a time-saving algorithm, is used to carry out the correlation. Different factors in the image (contrast, noise, size) are varied and the effects are observed. The results showed good correlation except when the contrast was low and the noise was high. Using a filtering function in the correlation process produced good results in improving poor correlation patterns.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA088659

Entities

People

  • Eugene A. Margerum
  • James A. Shine

Organizations

  • Geospatial Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Army Corps Of Engineers
  • Boundaries
  • Computer Programs
  • Computers
  • Contrast
  • Engineers
  • Fast Fourier Transforms
  • Filters
  • Filtration
  • Frequency
  • Image Processing
  • Images
  • Photographic Images
  • Procedures (Computers)
  • Random Number Generators
  • Security

Fields of Study

  • Engineering
  • Physics

Readers

  • Image Processing and Computer Vision.
  • Regression Analysis.