Adaptive log-quadratic approach for target detection in nonhomogeneous backgrounds perturbed with speckle fluctuations

Eric Magraner (1) , Nicolas Bertaux (1) , Philippe Réfrégier (1)

1 FRESNEL - Institut FRESNEL

A new approach for point target detection in the presence of speckle fluctuations with nonhomogeneous backgrounds is proposed. This approach is based on an automatic selection between the standard constant background model and a quadratic model for the logarithm of the background values. An improvement of the regulation of the false alarm probability in nonho- mogeneous backgrounds is demonstrated.

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Eric Magraner, Nicolas Bertaux, Philippe Réfrégier. Adaptive log-quadratic approach for target detection in nonhomogeneous backgrounds perturbed with speckle fluctuations. Optics Letters, 2008, 33 (23), pp.2821-2823. ⟨hal-00338907⟩