1 October 2005 Comparative analysis of clutter removal techniques over experimental IR images
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Optical Engineering, 44(10), 106401 (2005). doi:10.1117/1.2113147
Abstract
Infrared surveillance systems have the task of detecting small moving targets having low signal-to-clutter ratio. Detection is usually accomplished by (1) removing the background structures from each frame and (2) integrating the target signal over consecutive frames of the residual sequence. We focus on the analysis of background removal techniques based on linear and nonlinear two-dimensional filters such as the window average, median, max-median, and max-mean. We introduce two modified versions of the window average and max-mean filters, where an appropriate guard window is used to reduce the bias due to the target. We define an ad hoc methodology to compare the different background estimation techniques on the basis of their ability to suppress background structures and to preserve the target of interest. Finally, we present and discuss the results obtained over two experimental IR sequences containing a highly structured background.
Nicola Acito, Giovanni Corsini, Marco Diani, G. Pennucci, "Comparative analysis of clutter removal techniques over experimental IR images," Optical Engineering 44(10), 106401 (1 October 2005). http://dx.doi.org/10.1117/1.2113147
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KEYWORDS
Digital filtering

Nonlinear filtering

Target detection

Infrared imaging

Detection and tracking algorithms

Image filtering

Linear filtering

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