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

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.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1991
Accession Number
ADA242838

Entities

People

  • Denise M. Blanchard

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Converters
  • Databases
  • Detection
  • Detectors
  • Electromagnetic Radiation
  • Electron Guns
  • Electronics
  • Frequency
  • Information Processing
  • New York
  • Observers
  • Optics
  • Recognition
  • Signal Processing
  • Standards
  • Two Dimensional

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.