文章基本信息

标题：Towards Semantic Interaction in High-Detail Realtime Terrain and City Visualization
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作者：R. Wahl ; R. Klein
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-3/W49A
页码：179-184
出版社：Copernicus Publications
摘要：On the one hand, the extent, modeled detail and accuracy of virtual landscapes, cities and geospecific content is rapidly increasing. Realtime visualizations based on geometric levels-of-detail (LODs) allow the user to explore such data, but up to now, the methods of interaction are very low-level. On the other hand, we have semantic categories for the objects which are modeled in ontologies. We propose an approach which allows to combine the advantages of both, realtime visualization techniques and semantic hierarchies, in a single application without establishing an explicit link. That way, we can achieve semantic interaction without interfering with the rendering techniques which is crucial for performance on large datasets. Moreover, we are able to exchange geometric and semantic models independently of each other
关键词：DTM; DSM; city model; LOD; multiscale methods; realtime visualization; semantic interaction; ontology