%0 Journal Article
%T Research Evolvement of Large Scale Terrain Visualization Algorithm<br>大规模三维地形可视化算法研究进展
%A ZHANG Hui-Jie
%A SUN Ji-Gui
%A LIU Xue-Jie
%A LI Ze-Hai
%A <br>张慧杰
%A 孙吉贵
%A 刘雪洁
%A 李泽海
%J 计算机科学
%D 2007
%I 
%X In recent years, large-scale three-dimensional terrain visualization is indispensable to outdoor environment simulation and a surge of research in the area of visualization. It is widely applicable for games, simulators, visual realization, GIS and other areas. This paper discussed research methods of many scholars and new research evolvement and some issues that still exist in terrain visualization area. On both data fitting and model simplification sides, these methods of adaptive terrain visualization modeling are described. According to be friendly for modern graphics hardware or not, these terrain model simplification algorithms are divided into CPU oriented fine granularity LOD and GPU oriented coarse granularity LOD algorithm, as well as, this paper described space-time discontinuity problems, their various settlements and out-of-core technology that supports large-scale datasets. Finally, it is summarized and analyzed that the development current and future research emphasis in the terrain visualization modeling area.
%K Large-scale terrain visualization
%K Multi-resolution model
%K GPU-Oriented LOD Algorithm
%K Coarse granularity
%K Out-of-core technology<br>大规模地形可视化
%K 多分辨率模型
%K 面向GPU的LOD算法
%K 粗粒度
%K Out-of-core技术
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=9F21D7F39B3F3442D7EDDF62FEA76496&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=38B194292C032A66&sid=F3090AE9B60B7ED1&eid=7801E6FC5AE9020C&journal_id=1002-137X&journal_name=计算机科学&referenced_num=8&reference_num=61