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Proceedings Paper

Algorithm fusion for a land-based warning system to enhance detection and tracking performance
Author(s): Yong Woon Park; Boo Whan Lee; Jun Sung Park; Do-Jong Kim
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Paper Abstract

An algorithm fusion approach is presented to detect a short range target in the land environments with heavy clutters. There has been fundamental problems in extracting the small target from cluttered IR images in a land-based IR Sensor. One of the causes is that we do not have sufficient time to make a decision. In addition, high false alarm and low detection rate make it more difficult to track consecutively without disconnection. It is also found that the target occupies 5 to 7 pixels or more ones in sometimes when it approaches to the counter decision range. When the target is maneuvering the classical matched filter with Gaussian- shaped target assumption generates more false alarm and make it more difficult to track precisely. In order to overcome some of the difficulties, we combined two algorithms. One is the morphological nonlinear filter which is sensitive to the size of the target. The other is the classical matched filter applied to some of the clustered objects. One of the advantages of using morphological filter is that it requires less calculation time than the classical matched filter. It also provides more effective clues when the target is passing the decision range with predetermined target size. In order to reduce the false detection, two dimensional structuring elements are separated to one dimensional elements and applied opening minus closing operation to remove the longitudinal and lateral line objects abundant in the land background. In addition, real time calculation of matched filter based on the object clustering is proposed to implement in real system.

Paper Details

Date Published: 7 August 2002
PDF: 8 pages
Proc. SPIE 4728, Signal and Data Processing of Small Targets 2002, (7 August 2002); doi: 10.1117/12.478533
Show Author Affiliations
Yong Woon Park, Agency for Defense Development (South Korea)
Boo Whan Lee, Agency for Defense Development (South Korea)
Jun Sung Park, Agency for Defense Development (South Korea)
Do-Jong Kim, Agency for Defense Development (South Korea)


Published in SPIE Proceedings Vol. 4728:
Signal and Data Processing of Small Targets 2002
Oliver E. Drummond, Editor(s)

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