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Proceedings Paper

Wavelet-based data hiding of DEM in the context of real-time 3D visualization
Author(s): K. Hayat; W. Puech; G. Gesquiere; M. Chaumont
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Paper 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.

Paper Details

Date Published: 29 January 2007
PDF: 10 pages
Proc. SPIE 6495, Visualization and Data Analysis 2007, 64950N (29 January 2007); doi: 10.1117/12.703040
Show Author Affiliations
K. Hayat, LIRMM Lab., CNRS, Univ. of Montpellier II (France)
W. Puech, LIRMM Lab., CNRS, Univ. of Montpellier II (France)
G. Gesquiere, LSIS Lab., CNRS, Aix-Marseille Univ. (France)
M. Chaumont, LIRMM Lab., CNRS, Univ. of Montpellier II (France)


Published in SPIE Proceedings Vol. 6495:
Visualization and Data Analysis 2007
Robert F. Erbacher; Jonathan C. Roberts; Matti T. Gröhn; Katy Börner, Editor(s)

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