计算机工程与应用2009，Vol.45Issue(33)：141-143,182,4.DOI:10.3778/j.issn.1002-8331.2009.33.046
3D IFS在DEM重构中的应用研究
Research and application on 3D IFS interpolation in DEM
摘要
Abstract
The reconstruction of terrain profile data based Digital Elevation MOdeI(DEM) by means of traditional interpolation means(B-Spline,bilinear) which often seems too smooth to represent precisely local terrain as natural scenes which have infinite details.In this paper,the Iterated Function System (IFS) interpolation method is used to reconstruct original terrain in which some data have been reduced randomly.Unlike the existing general means,the vertical scale factor is regarded as continuous function of the fractal dimensions to reduce computation in the course of terrain reconstruction.The experimental results reveal that 3D IFS interpolation in DEM can maintain well both topographic feature and statistical characteristics in the case of low reduction rate.关键词
分形插值/迭代函数系统/数字高程模型/分形维Key words
fractal interpolation/iterated function systems/digital elevation model/fractal dimensions分类
信息技术与安全科学引用本文复制引用
何文斌,牛铮,梁利姣..3D IFS在DEM重构中的应用研究[J].计算机工程与应用,2009,45(33):141-143,182,4.基金项目
国家重点基础研究发展规划(973)(the National Grand Fundamental Research 973 Program of China under Grant No.2007CB714406). （973）
