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Proceedings Paper

Contrast control for sonar pictures
Author(s): Francoise Schmitt; Laurent Bonnaud; Christophe Collet
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Paper Abstract

During the sonar image acquisition, several physical phenomena degrade the final picture a lot. We examine particularly two damages: the energy loss function of the distance covered by the acoustical wave and the speckle noise. For the first phenomenon, we suggest a corrective post processing which takes some acquisition parameters into account. For the second phenomenon, we apply filtering algorithms like the maximum a posteriori filter, a modified version of the Lee algorithm or an adaptive weighted median filter. The results are shown on real sonar images.

Paper Details

Date Published: 14 November 1996
PDF: 12 pages
Proc. SPIE 2847, Applications of Digital Image Processing XIX, (14 November 1996); doi: 10.1117/12.258269
Show Author Affiliations
Francoise Schmitt, Ecole Navale (France)
Laurent Bonnaud, Ecole Navale (France)
Christophe Collet, Ecole Navale (France)


Published in SPIE Proceedings Vol. 2847:
Applications of Digital Image Processing XIX
Andrew G. Tescher, Editor(s)

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