Journal ArticleDOI
Modeling Human Search And Target Acquisition Performance: II. Simulating Multiple Observers In Dynamic Scenarios
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TLDR
The Center for Night Vision and Electro-Optics search model is extended to cover cases involving multiple observers under conditions with time-varying obscurants and it is found that simulations with two levels of visibility conditions indicate that the persistence time of an obscurant and the correlation between observers are crucial parameters for determining the average time for first detection.Abstract:Β
The Center for Night Vision and Electro-Optics search model is extended to cover cases involving multiple observers under conditions with time-varying obscurants. We find that simulations with two levels of visibility conditions indicate that the persistence time of an obscurant and the correlation between observers are crucial parameters for determining the average time for first detection.read more
Citations
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Journal ArticleDOI
Modeling human search and target acquisition performance: III. target detection in the presence of obscurants
TL;DR: Analysis indicates that the variation of the obscurant as a function of time greatly affects the predicted target detection times and, hence, the utility of the infrared system in realistic scenarios.
Journal ArticleDOI
Effects of image restoration on acquisition of moving objects from thermal video sequences degraded by the atmosphere
TL;DR: This work examines the effect of image restoration on the ability of observers to acquire moving objects in video sequences through perception experiments that compare acquisition probabilities in both restored and nonrestored video sequences captured by a remote-sensing thermal imaging system.
Journal ArticleDOI
Psychophysical Foundations of a Model of Amplified Night Vision in Target Detection Tasks
TL;DR: Some of the basic psychophysics relevant to amplified night vision devices are examined, indicating that display luminance and geometrical artifacts degrade detection performance only slightly, whereas contrast and visual interference have a substantial degrading effect.
ReportDOI
Soldier-in-the-Loop Target Acquisition Performance Prediction Through 2001: Integration of Perceptual and Cognitive Models
TL;DR: Basic models of visual search are included as guides for how target acquisition models may incorporate some of these factors, and Visual selective attention is recommended as a means for the theoretically meaningful inclusion of psychologically important factors into target acquisition modeling.
Proceedings ArticleDOI
A uniform method for analytically modeling mulit-target acquisition with independent networked imaging sensors
TL;DR: In this article, a target acquisition probability model was proposed for a scenario with networked and moving imaging sensors, moving targets and independent observers searching imagery produced by the moving sensors, analytically model system target acquisition probabilities for each target as a function of time.
References
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Journal ArticleDOI
Detection Performance in Clutter with Variable Resolution
TL;DR: Observer test results confirmed the expectation that the resolution required for a given detection probability was a continuum function of the clutter level, and are expected to aid in target acquisition performance modeling and to lead to improved specifications for imaging automatic target screeners.
Night Vision Laboratory Static Performance Model for Thermal Viewing Systems
TL;DR: In this paper, the NVL thermal model predicts system noise equivalent temperature difference, minimum resolvable temperature, minimum detectable temperature and modulation transfer functions for any infrared imaging system and also predicts detection and recognition as a function of range for a given atmosphere and target signature.
Journal ArticleDOI
The Effect of Target Surround Density on Visual Search Performance
Timothy H. Monk,Brian Brown +1 more
TL;DR: A linear increasing function is found between geometric mean search time and target surround density, using three measures of the latter.
Journal ArticleDOI
Imaging Through The Atmosphere For Airborne Reconnaissance
TL;DR: Turbulence, atmospheric background, and aerosol forward scattering modulation transfer functions (MTFs) are analyzed with regard to both low elevation remotely piloted vehicles and high elevation reconnaissance applications as discussed by the authors.
Journal ArticleDOI
Using Visual Lobe Area Measurements to Predict Visual Search Performance
TL;DR: After a review of the pertinent literature, a procedure to predict search performance is presented, which is based on visual lobe area measurements, and the validity of the proposed predicting method is demonstrated.