A FORMULA CALCULABLE ON SMALL COMPUTERS FOR THE DETERMINATION OF RELATIVE ORIENTATION IN PHOTOGRAPHS OF MOUNTAINOUS TERRAIN,

Abstract

In aerial triangulation, the equations used for computing the relative direction generally fall into two categories: (1) the complicated 'mountain' equations with unrestricted point-position distribution; and (2) the 'plain' equations defined by a 6-fixed-point distribution. These 'plain' equations are not suitable for use in mountainous areas, but this difficulty can be overcome by introducing two additional sets of equations to be used in conjunction with the 'plain' equations. The use of this complex of equations saves computational time and computer memory space compared to the mathematical procedures otherwise required. The additional equations will or will not be used in the computation depending on the magnitude of the point-position error at an image pair. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1967
Accession Number
AD0670946

Entities

People

  • Ting-hui Hu

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Computations
  • Computers
  • Equations
  • Images
  • Landforms
  • Mountains
  • Navigation
  • Navigational Equipment
  • Orientation (Direction)
  • Photographs
  • Photography
  • Position Finding
  • Republic
  • Terrain
  • Triangulation

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Geodesy
  • Regression Analysis.

Technology Areas

  • Space