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通过分析LIDAR数据特点,并结合各种典型多源数据,论述如何在保持各数据源精度的前提下,实现多源数据融合的集成技术;提出一种基于地形约束条件下的点云DEM生产方法,并采用金字塔模型及线性四叉数瓦片式索引对数据进行管理,从而实现对多源数据的融合与快速浏览。 更多还原

【Abstract】 This paper analyzed the characteristics of LIDAR data and some of the typical multi-resources geospatial data.It discussed under the conditions of maintaining data accuracy to achieve the multi-resources data integration.This paper suggested an effective data structure model-the pyramid model,and visible region of the display technology,in order to achieve the integration of multi-source data and fast browsing. 更多还原