文章基本信息

标题：A Hierarchical Triangulation for Multiresolution Terrain Models
本地全文：下载
作者：Abásolo M.J. ; De Giusti A. ; Blat J. 等
期刊名称：Journal of Computer Science and Technology
印刷版ISSN：1666-6046
电子版ISSN：1666-6038
出版年度：2000
卷号：1
期号：3
出版社：Iberoamerican Science & Technology Education Consortium
摘要：Interactive visualisation of triangulated terrain surfaces is still a problem for virtual reality systems. Apolygonal model of very large terrain data requires a large number of triangles. The main problems arethe representation rendering efficiency and the transmission over networks. The major challenge is tosimplify a model while preserving its appearance. A multiresolution model represents different levels ofdetail of an object. We can choose the preferable level of detail according to the position of the observerto improve rendering and we can make a progressive transmission of the different levels. We propose amultiresolution triangulation scheme that eliminates the restrictions of the restricted quadtreetriangulation and obtains better results
关键词：multiresolution model; terrain model; level of detail; quadtree subdivision; hierarchical