NVESD time-limited search model

Timothy C. Edwards; Richard H. Vollmerhausen; Ronald G. Driggers; Eric Grove

doi:10.1117/12.487143

22 August 2003 NVESD time-limited search model

Timothy C. Edwards, Richard H. Vollmerhausen, Ronald G. Driggers, Eric Grove

Proceedings Volume 5076, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIV; (2003) https://doi.org/10.1117/12.487143
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

A summary of the development and impact of the Night Vision and Electronic Sensors Directorate (NVESD) Time-Limited Search (TLS) Model for target detection is presented. This model was developed to better represent the search behavior when an observer is placed under time-constrained conditions. The three primary components of the search process methodology are (1) the average detection time (based on characteristics of the image), (2) occurrence and time delay associated with false alarms, and (3) the time spent searching a Field-of-View (FOV) before moving on to another FOV. The results of four independent perception experiments served as the basis for this methodology. The experiments, which were conducted by NVESD, portrayed time limited search conditions for different sensor resolution and background clutter levels. The results of the experiments showed that these factors influence the search process and their impacts are represented within the components of the TLS methodology. The discussion presents the problems with the current model and details the constraints that must be understood to correctly apply the new model.

Citation Download Citation

Timothy C. Edwards, Richard H. Vollmerhausen, Ronald G. Driggers, and Eric Grove "NVESD time-limited search model", Proc. SPIE 5076, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIV, (22 August 2003); https://doi.org/10.1117/12.487143

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