Interactive Information Sharing System using Large 3D Geometric Models

概要

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Recent advances in digital archiving technologies allow us to obtain and store many kinds of precious data in large quantities. Additionally, sensing and modeling technologies for 3D digital archiving have also advanced dramatically, so we can obtain dense 3D geometric data of large-scale cultural heritage objects around the world. Thus, in this paper, we introduce a novel system in which ordinary users can access geometric data connected with cultural assets by using dense 3D models as visual interfaces. Our system has three major functions: (1) to display information associated with the target 3D model in real time, (2) to associate information with a meaningful region of the 3D model, and (3) to provide this system on a network environment. First, we propose a polygon-based method that is more applicable to interactive rendering and information sharing system. Second, regarding our interactive selection tool, this enables users to select complex regions on huge 3D models using graph-cut algorithm. Finally, we propose a rendering method using a client-server model through the Internet to extend the proposed interactive tool to a network environment. Our proposed method is based on a hybrid method that we refer to as "Grid-Lumigraph," which uses not only model-based data but also image-based data for efficient data transfer and image accuracy.
2010-05-20