Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2007

Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization

Khizar Hayat
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  • PersonId : 940846
William Puech
Marc Chaumont

Abstract

The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data in an interactive way. In order to obtain a three dimensional visualization it is necessary to map the images, called textures, onto the terrain geometry computed with Digital Elevation Model (DEM). Practically, all of these informations are stored in three different files: DEM, texture and geo-localization of the data. In this paper we propose to save all this information in a single file for the purpose of synchronization. For this, we have developed a wavelet-based embedding method for hiding the data in a color image. The texture images containing hidden DEM data can then be sent from the server to a client in order to effect 3D visualization of terrains. The embedding method is integrable with the JPEG2000 coder to accommodate compression and multi-resolution visualization.
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Dates and versions

lirmm-00192902 , version 1 (29-11-2007)

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Khizar Hayat, William Puech, Gilles Gesquière, Marc Chaumont. Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization. Electronic Imaging, Jan 2007, San Jose, CA, United States. pp.64950N, ⟨10.1117/12.703040⟩. ⟨lirmm-00192902⟩
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