Search Performance Using Displays with Restricted Field of View

Abstract

Search performance using optical imaging systems with restricted viewing area was investigated using a prototype interface and controls of the airborne Enhanced Low-light Level Visible and Infrared Surveillance System (ELVISS). Three different search environments were simulated, one over water, one over land, and one designed specifically to search for objects with retro-reflective properties. Field of view (FOV) of the images from the two ELVISS sensors, a Forward-Looking InfraRed sensor, and an Active-Gated TV was varied. The study suggests that the most effective FOV for search using imaging systems depends on the type of search and/or the sensor mode employed. When using a laser illuminator beam to search for targets with retro-reflective properties, more targets were accurately identified when FOV was wide (20 ) than when it was narrower (2 ). In other tasks, when the beam was not active, a narrow/wide FOV range of 5 and 20 was more effective than lower (2 :10 ) or higher (15 :35 ) viewing fields.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2003
Accession Number
ADA633904

Entities

People

  • Jacquelyn M. Crebolder
  • Sharon Mcfadden
  • Trish D. Unruh

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Airborne
  • Aircrafts
  • Charge Coupled Devices
  • Detection
  • Detectors
  • Environment
  • False Alarms
  • Flight Paths
  • Flight Simulators
  • Identification
  • Infrared Surveillance
  • Low Light Levels
  • Prototypes
  • Search And Rescue
  • Surveillance
  • Target Acquisition
  • Target Detection

Readers

  • Sensor Fusion and Tracking Systems.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Directed Energy