Profiling Sensitivity to Image Quality.

Abstract

This paper reports results from a study conducted by the Defense Mapping Agency (DMA) to determine the sensitivity of terrain profiling accuracy to input image quality. The study was accomplished by building a set of stereo test models over a test site; exercising those test models with current instruments; reducing the resultant profile data and comparing the results to existing ground control for the test site. The test models were produced from a single model by repeated steps of photographic enlargement, reduction and resolution degradation. The resultant 25 test models represented all combinations of five specific image scales and resolutions. The instruments were operated in both manual and automatic correlation modes. As a consequence the results portray the interdependence of profile accuracy with both scale and resolution as well as the effects of both manual and automatic profiling. The results also provide insight into the behavior of automatic correlation when approaching and exceeding the instrument's theoretical minimum resolution threshold. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA108405

Entities

People

  • Dennis E. Moellman

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Cameras
  • Computer Programs
  • Coordinate Systems
  • Correlation Techniques
  • Correlators
  • Data Sets
  • Databases
  • Digital Data
  • High Resolution
  • Images
  • Information Science
  • Photographic Materials
  • Photographs
  • Sea Level
  • Standards

Readers

  • Aerospace Test and Evaluation
  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.