Modelling sea clutter infrared synthetic images

B. A. Devecchi; K. W. Benoist; L. C. W. Scheers; H. E. T. Veerman; S. A. Binsbergen; A. M. J. van Eijk

doi:10.1117/12.2535820

17 October 2019 Modelling sea clutter infrared synthetic images

B. A. Devecchi, K. W. Benoist, L. C. W. Scheers, H. E. T. Veerman, S. A. Binsbergen, A. M. J. van Eijk

Proceedings Volume 11158, Target and Background Signatures V; 111580K (2019) https://doi.org/10.1117/12.2535820
Event: SPIE Security + Defence, 2019, Strasbourg, France

Abstract

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.

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Citation Download Citation

B. A. Devecchi, K. W. Benoist, L. C. W. Scheers, H. E. T. Veerman, S. A. Binsbergen, and A. M. J. van Eijk "Modelling sea clutter infrared synthetic images", Proc. SPIE 11158, Target and Background Signatures V, 111580K (17 October 2019); https://doi.org/10.1117/12.2535820

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