中文摘要：

从RSG（regular square grid）数据出发,通过数据预处理、保守性屏幕误差、孤立分割和添加拆分点等方法,提出了地形自适应多分辨率显示的新算法。实验证明,该算法在一定程度上消除了当前静态和动态LoD（levels of detail）中存在的问题,具有较高的实用价值,对其他模型的LoD表达也是一种借鉴。

英文摘要：

Static LoD has been the most commonly used method of three-dimensional display of terrain from the 1970s which was introduced to the present; it is based on the pyramid or multi-tile structure to generate a number of discrete models which have different resolution for real-time calls, simple but containing large amounts of data redundancy and jumping when level-switch. Moreover, the current dynamic LoD also includes some problems, such as complex data structure and single accuracy criterion etc. Based on these, we start from the RSG data and put forward a new algorithm for real-time adaptive multi-resolution rendering through data-preprocessing, conservative screen-error, isolated partition and split-points inserting. Preliminary experiments have proved that the simulated accuracy can be improved greatly with satisfactory speed. Meanwhile, it can also be adapted for other models of LoD expressions.