<title>Multitarget tracking in clutter</title>

Abstract

A high frame rate (120 Hz), multi-target, video tracker has been developed and used in an operational environment. The tracker is able to track multiple targets simultaneously, while providing fine-track track errors on a user selected target. The system is able to accommodate real-world issues such as sensor bad pixels and natural background clutter. Several fine track modes are available, including centroid, leading edge, and correlation. The tracker provides sub- pixel track accuracy against both resolved and unresolved targets. The system has been extensively tested against radiometrically correct cloud scenes and has been successfully integrated in a tracking system to provide multi-target tracking of real targets viewed against terrain and cloud backgrounds.