Share Email Print
cover

Proceedings Paper

NVESD time-limited search model
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper 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.

Paper Details

Date Published: 22 August 2003
PDF: 7 pages
Proc. SPIE 5076, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIV, (22 August 2003); doi: 10.1117/12.487143
Show Author Affiliations
Timothy C. Edwards, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Richard H. Vollmerhausen, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Ronald G. Driggers, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Eric Grove, U.S. Army Material Systems Analysis Activity (United States)


Published in SPIE Proceedings Vol. 5076:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIV
Gerald C. Holst, Editor(s)

© SPIE. Terms of Use
Back to Top