Eigen-extended maximum average correlation height (EEMACH) filters for automatic target recognition

Bhagavatula Vijaya Kumar; Mohamed Alkanhal

doi:10.1117/12.445390

22 October 2001 Eigen-extended maximum average correlation height (EEMACH) filters for automatic target recognition

Bhagavatula Vijaya Kumar, Mohamed Alkanhal

Proceedings Volume 4379, Automatic Target Recognition XI; (2001) https://doi.org/10.1117/12.445390
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

Correlation filters are attractive for SAR automatic target recognition (ATR) due to their distortion tolerance ability. Recently, a new filter called the extended maximum average correlation height (EMACH) filter was shown to exhibit low false alarm rate while providing good distortion tolerance. The trade-off between distortion tolerance and clutter rejection is achieved in the EMACH filter by selecting a parameter (beta) . The performance of this filter was examined using a simulated SAR database. In this paper, we develop a new filter called the eigen EMACH filter. This filter is based on decomposing the EMACH filter using the eigen-analysis. We show that this filter has better generalization ability compared to the EMACH filter. Also, we illustrate that this filter exhibits a consistent performance over a wide range of (beta) values. In this paper, we show that this filter provides better representation of the desired class while retaining the clutter rejection capability of the original EMACH filter. We use the MSTAR databases to test the performance of this filter.

Citation Download Citation

Bhagavatula Vijaya Kumar and Mohamed Alkanhal "Eigen-extended maximum average correlation height (EEMACH) filters for automatic target recognition", Proc. SPIE 4379, Automatic Target Recognition XI, (22 October 2001); https://doi.org/10.1117/12.445390

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