文章基本信息

标题：Global Terrain Data Organization and Compression Methods
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作者：LI Yi ; GONG Jianhua
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：2008
卷号：XXXVII Part B5
页码：659-666
出版社：Copernicus Publications
摘要：Terrain data is important data source in the 3D geographic visualization system. The key problem to browse global terrain data in network environment is to organize, transform and display data in a quick and efficient way. This paper introduces some of the key techniques in the global terrain visualization. The simplified global terrain data partition and organizing method is adopted. In order to reduce the size of datasets, the human-vision related improved SPHIT wavelet compression method is also introduced in this paper. The experiment shows that these technique solutions are effective to solve the problem in global terrain visualization in C/S mode
关键词：Multi-resolution terrain model; Global terrain data; Improved SPIHT wavelet; Terrain simplification