摘要
本文运用等高线重构误差模型对细节层次模型(LOD模型)不同层次之间的精度进行研究。选取5种典型地貌区域进行试验,得到了不同地貌区域的重构误差拟合公式。根据得到的公式,可内插得到各种分辨率比率的重构误差。同时,利用逆公式,又能由重构误差确定相应的分辨率比率,为评价LOD模型精度提供了一种新的方法和思路。
In this paper,the accuracy for level of detail(LOD) model in different level is studied based on the reconstructed error of contour lines.5 kinds of typical relief regions are selected and experimented.And the approximation formulae are obtained for these regions.Based on the formulae,the error with any simplifying ratio can be gained by interpolation algorithm.On the other hand,the simplifying ratio can be determined according to the asked error.The results obtained in the paper supply a new approach for evaluating the accuracy of LOD model.
出处
《测绘科学》
CSCD
北大核心
2007年第6期52-53,共2页
Science of Surveying and Mapping
