This paper presents a mobile virtual environment designed for the visualization of high-resolution virtualised scenes and for visual data mining. The architecture and the implementation of the mobile virtual environment are described. This environment is characterized by its distributed asynchronous architecture that optimises the rendering performances by distributing the graphical load over various computers. A client-server architecture insures the robustness of the connections and the scalability of the system. The various components of the virtual environment can be configured with an XML file. In stereo mode, two computers render the scene. The passive stereo projection system is composed of two circularly polarized DLP video projectors and the scene is rendered with two laptops (up to 400.000 polygons in real-time in this specific case). Both rear and front projection are supported. In tiled wall display mode, the number of computers is equal to the number of flat screens required for the visual display. Various applications of this virtual environment to visual data mining are considered. Finally, the system is utilized to visualize the crypt of Santa Cristina, a Byzantine crypt of the medieval period near Lecce (Italy) that has been scanned at high resolution with a MENSI range scanner and texture mapped with photogrammetric techniques.
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