Vector spaces, invariance, and camouflage

Henri H. Arsenault; Pascuala Garcia-Martinez

doi:10.1117/12.578051

29 December 2004 Vector spaces, invariance, and camouflage

Henri H. Arsenault, Pascuala Garcia-Martinez

Proceedings Volume 5615, Technologies for Optical Countermeasures; (2004) https://doi.org/10.1117/12.578051
Event: European Symposium on Optics and Photonics for Defence and Security, 2004, London, United Kingdom

Abstract

We present a method based on an orthonormal vector space basis representation to detect camouflaged targets in natural environments. Because the method is intensity invariant we detect camouflage targets independently of the illumination conditions. The detection technique does not require knowing the exact camouflage pattern, but only the class of patterns (foliage, netting, woods...). We used nonlinear filtering based on the calculation of several correlations. Moreover, the nonlinearity of the filtering process allows a high discrimination against false targets. Several experiments confirm the target detectability where strong camouflage might delude even human viewers.

Citation Download Citation

Henri H. Arsenault and Pascuala Garcia-Martinez "Vector spaces, invariance, and camouflage", Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); https://doi.org/10.1117/12.578051

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