The Role of the Upper Field of View in Selected HMS/D Visual Tasks

Abstract

A study was conducted to determine whether opaque obstructions located in an observer's upper field of view would affect the visual detection of briefly illuminated targets located above his horizontal line of sight. Five versions of an acrylic visor considered for use with a helmet-mounted sight and display (HMS/D) contained one or more opaque areas located above their horizontal axes. Target detection performance for 12 subjects using the experimental visors was compared with the subjects' performance using an unobstructed control visor. Target appearance was signalled by a central cue light for six subjects (directed search), while the other six subjects were forced to rely only on peripheral detection of the briefly illuminated targets (undirected search). It was found that target detection performance was unaffected by either visor obstructions or by method of search, or any combination of the two. It was concluded that any of the visors would be usable from a visual performance standpoint. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 12, 1979
Accession Number
ADA072064

Entities

People

  • B. J. Cohen
  • R. A. Levit

Organizations

  • Honeywell International, Inc.

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Aircrafts
  • Analysis Of Variance
  • Biomedical Research
  • Data Analysis
  • Detection
  • Experimental Design
  • Identification
  • Instructions
  • Line Of Sight
  • Peripheral Vision
  • Pilot Studies
  • Recognition
  • Rotary Switches
  • Target Acquisition
  • Target Detection

Readers

  • Human-Computer Interaction (HCI).
  • Theoretical Analysis.