Accession Number:

ADA242838

Title:

A Performance Model of Thermal Imaging System (TISs) which Includes the Human Observer's Response to 'State of the Art' Displays

Descriptive Note:

Rept. for Jan-Jun 91,

Corporate Author:

ROME LAB ROME NY

Personal Author(s):

Report Date:

1991-09-01

Pagination or Media Count:

33.0

Abstract:

This paper presents a model for predicting the performance of thermal imaging systems TISs. This model combines conventional modeling relationships and recently reported characteristics of display monitors to determine the signal-to-noise ratio SNR out of the TIS. Also included are the results of psychophysical experiments which evaluated the capability of a human observer to detect the presence of an object displayed on the same monitor. The model is then used to determine the noise equivalent temperature difference NEdeltaT based on background photon noise limited BLIP operating conditions of the TIS. Finally, the minimum detectable temperature difference MDT in the scene is determined from the maximum signal-to-noise ratio of the monitor.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE