Multi-resolution Morphological Representation of Terrains
dc.contributor.author | Danovaro, E. | en_US |
dc.contributor.author | Floriani, L. De | en_US |
dc.contributor.author | Vitali, M. | en_US |
dc.contributor.author | Papaleo, L. | en_US |
dc.contributor.editor | S. Battiato and G. Gallo and F. Stanco | en_US |
dc.date.accessioned | 2014-01-27T16:20:39Z | |
dc.date.available | 2014-01-27T16:20:39Z | |
dc.date.issued | 2006 | en_US |
dc.description.abstract | Mesh-based terrain representations provide accurate descriptions of a terrain, but fail in capturing its morphological structure. The morphology of a terrain is defined by its critical points and by the critical lines joining them, which form a so-called surface network. Besides being compact, a morphological terrain description supports a knowledge-based approach to the analysis, visualization and understanding of a terrain dataset. Moreover, because of the large size of current terrain data sets, a multi-resolution representation of the terrain morphology is crucial. Here, we address the problem of representing the morphology of a terrain at different resolutions. The basis of the multi-resolution terrain model, that we call a Multi-resolution Surface Network (MSN), is a generalization operator on a surface network, which produces a simplified representation incrementally. An MSN is combined with a multi-resolution mesh-based terrain model, which encompasses the terrain morphology at different resolutions. We show how variable-resolution representations can be extracted from an MSN, and we present also an implementation of an MSN in a compact encoding data structure. | en_US |
dc.description.seriesinformation | 4th Eurographics Italian Chapter Conference | en_US |
dc.identifier.isbn | 3-905673-58-4 | en_US |
dc.identifier.uri | https://doi.org/10.2312/LocalChapterEvents/ItalianChapConf2006/045-051 | en_US |
dc.publisher | The Eurographics Association | en_US |
dc.subject | Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Algorithms]: Terrain models, morphology, generalization, hierarchical models | en_US |
dc.title | Multi-resolution Morphological Representation of Terrains | en_US |
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