Accession Number:

ADA633904

Title:

Search Performance Using Displays with Restricted Field of View

Descriptive Note:

Technical rept.

Corporate Author:

DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)

Report Date:

2003-04-01

Pagination or Media Count:

48.0

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 andor 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 narrowwide FOV range of 5 and 20 was more effective than lower 2 10 or higher 15 35 viewing fields.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Target Direction, Range and Position Finding
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE