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在使用国产卫星遥感数据的基础上,利用DEM数据提取地形特征,根据数据获取时的光照条件,建立地形光照模型,总结出一套快速易行的地形渲染技术,能够实现可视化、立体感强的三维地形表达,提供更为直观准确的地形认知。 更多还原

【Abstract】 The study was based on domestic satellite remote sensing data.We built the terrain illumination model with terrain features extracted from DEM data and illumination condition of image acquisition,and summarized a technology of terrain rendering.The technology can realize stereoscopic 3-D terrain visualization,and give us more direct and precise terrain cognition. 更多还原