Computer Program for Analysis of Spherical Screen Distortion.

Abstract

In visual simulation, the distortion of imagery in wide-angle display systems is a major concern. Effective flight training requires that the imagery presented to a trainee provide a proper perspective view of his simulated environment without distortion. Use of spherical screens (domes) introduces perspective and geometrical distortion into these wide-angle displays. Use of video projection systems with Computer Image Generation (CIG) offers the options of raster shaping or computer remapping for distortion correction. The method is to correct the imagery before projection in order to provide a non-distorted scene to a trainee. This report is documentation of a computer program for analysis of the required raster correction for specific projector/viewpoint positioning within a spherical screen. The programs and report were initiated to provide input to the F-18 simulator (Device 2E7) being developed by Hughes Aircraft. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA113136

Entities

People

  • Richard C. Hebb

Tags

DTIC Thesaurus Topics

  • Aircrafts
  • Computer Programming
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Display Systems
  • Equations
  • Flight Simulators
  • Geometry
  • Naval Training
  • Simulations
  • Standards
  • Three Dimensional
  • Trainees
  • Training
  • Two Dimensional
  • Wide Angles

Readers

  • Computer Science.
  • Human-Computer Interaction (HCI).
  • Image Processing and Computer Vision.