Rapid high-performance hyperspectral anomaly detection via global support vector data description

Reuven Meth; Amit Banerjee; Philippe Burlina; Thomas Strat

doi:10.1117/12.777164

2 May 2008 Rapid high-performance hyperspectral anomaly detection via global support vector data description

Reuven Meth, Amit Banerjee, Philippe Burlina, Thomas Strat

Proceedings Volume 6967, Automatic Target Recognition XVIII; 69670A (2008) https://doi.org/10.1117/12.777164
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Existing techniques for hyperspectral image (HSI) anomaly detection are computationally intensive precluding real-time implementation. The high dimensionality of the spatial/spectral hypercube with associated correlations between spectral bands present significant impediments to real time full hypercube processing that accurately encapsulates the underlying modeling. Traditional techniques have imposed Gaussian models, but these have suffered from significant computational requirements to compute large inverse covariance matrices as well as modeling inaccuracies. We have developed a novel data-driven, non-parametric HSI anomaly detector that has significantly reduced computational complexity with enhanced HSI modeling, providing the capability for real time performance with detection rates that match or surpass existing approaches. This detector, based on the Support Vector Data Description (SVDD), provides accurate, automated modeling of multi-modal data, facilitating effective application of a global background estimation technique which provides the capability for real time operation on a standard PC platform. We have demonstrated one second processing time on hypercubes of dimension 256×256×145, along with superior detection performance relative to alternate detectors. Computation performance analysis has been quantified via processing runtimes on a PC platform, and detection/false-alarm performance is described via Region Operating Characteristic (ROC) curve analysis for the SVDD anomaly detector vs. alternate anomaly detectors.

Citation Download Citation

Reuven Meth, Amit Banerjee, Philippe Burlina, and Thomas Strat "Rapid high-performance hyperspectral anomaly detection via global support vector data description", Proc. SPIE 6967, Automatic Target Recognition XVIII, 69670A (2 May 2008); https://doi.org/10.1117/12.777164

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KEYWORDS

Sensors

Data modeling

Detection and tracking algorithms

Target detection

Algorithm development

Performance modeling

Hyperspectral imaging

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