Modelling sea clutter infrared synthetic images
conference paper
Infrared imaging of the sea surface is used for many purposes, such as remote sensing of large oceanographic structures, environmental monitoring, surveillance applications and platform signature research. Many of these studies rely on determining the contrast of a target feature with its background and therefore benefit from accurately predicting the signature of the underlying sea surface background. We here present a model that synthesizes infrared spectral images of sea surfaces. This model traces explicitly the behaviour of the sea wave structure and light propagation. To self-consistently treat spatial and temporal correlations of the clutter, geometrical realizations of sea surfaces are built based on realistic sea wave spectra and their temporal behaviour is subsequently followed. A camera model and a ray tracer are used to determine which parts of the sea surface are observable by individual camera pixels. Atmospheric input elements of the model, being sky dome, path radiance and transmission, are computed with MODTRAN for a chosen atmosphere.
Topics
ModellingRemote sensingSea clutterCamerasClutter (information theory)Light propagationSpectroscopySurface watersThermography (imaging)Water wavesAtmospheric inputsEnvironmental MonitoringInfrared spectralSpatial and temporal correlationSurveillance applicationsSynthetic imagesTemporal behaviourRadar clutter
TNO Identifier
955174
ISSN
0277786X
ISBN
9781510630
Publisher
SPIE
Article nr.
111580K
Source title
Proceedings Target and Background Signatures V, 9-10 September 2019, Strasbourg, France
Editor(s)
Schleijpen, K.U.
Stein, R.
Stein, R.
Files
To receive the publication files, please send an e-mail request to TNO Repository.