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Dual-Band Land Mine Detection Using a Bayesian Approach

Lennart Svensson (Institutionen för signaler och system, Signalbehandling) ; Magnus Lundberg (Institutionen för signaler och system, Signalbehandling)
IEEE, International Conference on Acoustics Speech and Signal Processing, ICASSP '02, Orlando (2002)
[Konferensbidrag, refereegranskat]

The main purpose of the paper is to show that significant improvements in infrared land mine detectors can be achieved, by also considering visual wavelength images. A Bayesian approach, based on dual-band data, is presented that incorporates prior knowledge regarding external parameters such as recent weather, burial depth and soil moisture. By noting that most relevant backgrounds render rotationally invariant statistics, a low dimensional parameterization of the noise space is derived. Simulations show the performance of three different detectors; first the standard detector used, the matchedfilter which correlates the infrared image with the known mine shape; secondly a detector which models the spatial statistics of the infrared background while neglecting the visual wavelength data, and thirdly the proposed detector that exploits the full dual-band space. The second detector outperforms the matched filter, and is significantly improved by also utilizing the visual wavelength image.



Denna post skapades 2006-08-25. Senast ändrad 2010-05-12.
CPL Pubid: 15038

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Signalbehandling

Ämnesområden

Information Technology

Chalmers infrastruktur