Perspective Transformation for Wide-View Sky Scenes

Abstract

Fixed vantage point simulation requires a wide field of view for the external visual environment. The sky scene, however, is of secondary importance as moving objects in the scene are the areas of interest. It is therefore cost- effective to represent the sky in such cases as a two dimensional surface enclosing the earth. This memorandum derives the perspective transformation necessary to project points from this sphere onto two dimensional viewing screens. Inversion of this transformation is also presented. Keywords: Perspective transformation; Visual simulation clouds; Three dimensional graphics; Australia.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1990
Accession Number
ADA222694

Entities

People

  • L. N. Lester

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerial Warfare
  • Air Force
  • Aircrafts
  • Australia
  • Classification
  • Computer Graphics
  • Coordinate Systems
  • Department Of Defense
  • Environment
  • Graphics
  • Inversion
  • Ray Tracing
  • Screens (Displays)
  • Simulations
  • Simulators
  • Three Dimensional
  • Two Dimensional

Readers

  • Astronomy and Astrophysics.
  • Calculus or Mathematical Analysis
  • Database Systems and Applications