Interactive Digital Correlation Techniques for Automatic Compilation of Elevation Data,

Abstract

A program using digital correlation techniques has been implemented on the Digital Image Analysis Laboratory (DIAL) to automatically extract elevation type data from stereoscopic pairs of digital images. The DIAL permits the operator to view on a display unit the stereoscopic model and the computed match-point coordinates in 3-D using anaglyphic techniques. The match points are presented as 3-D profiles superimposed over the 3-D terrain model and consequently the operators can observe the compilation process, detect errors as soon as they occur, and interact with the process to prevent the accumulation of error or to tune the parameters as conditions warrant. The program is described in terms of the hardware used, the algorithm, the operating procedures, and an example of a compiled area. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 27, 1981
Accession Number
ADA103392

Entities

People

  • F. Raye Norvelle

Organizations

  • Geospatial Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Automatic
  • Computational Processes
  • Computations
  • Computer Science
  • Computers
  • Correlation Techniques
  • Digital Data
  • Digital Image Processing
  • Digital Images
  • Graphics
  • Host Computers
  • Image Processing
  • Images
  • Parallel Computing
  • Photographs
  • Three Dimensional

Readers

  • Computer Vision.
  • Geodesy