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Proceedings Paper

Modelling sea clutter infrared synthetic images
Author(s): B. A. Devecchi; K. W. Benoist; L. C. W. Scheers; H. E. T. Veerman; S. A. Binsbergen; A. M. J. van Eijk
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Paper 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.

Paper Details

Date Published: 17 October 2019
PDF: 13 pages
Proc. SPIE 11158, Target and Background Signatures V, 111580K (17 October 2019); doi: 10.1117/12.2535820
Show Author Affiliations
B. A. Devecchi, TNO (Netherlands)
K. W. Benoist, TNO (Netherlands)
L. C. W. Scheers, TNO (Netherlands)
H. E. T. Veerman, TNO (Netherlands)
S. A. Binsbergen, TNO (Netherlands)
A. M. J. van Eijk, TNO (Netherlands)
Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)

Published in SPIE Proceedings Vol. 11158:
Target and Background Signatures V
Karin U. Stein; Ric Schleijpen, Editor(s)

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