异源遥感影像的真三维模型构建方法

Construction Method of Real 3D Model of Heterogeneous Remote Sensing Images

以卫星立体影像数据和倾斜摄影数据为数据源,以资源三号卫星获取的湖南省遥感影像为例,基于瓦片金字塔模型,实现了不同分辨率的多类型数据的融合,建立了地形与纹理一体化表达的真三维模型。自主研发了ItelliEarth软件,以实现基于海量地形数据的三维场景下数据模型的可视化。研究结果表明,所提方法建立的真三维模型符合相关规范要求,为实现大尺度空间真三维模型的构建提供了有效途径。

The satellite stereoscopic images and the oblique photograph data are used as the data sources.Theremote sensing images of Hunan Province obtained from ZY-3 are taken as examples.Based on the tile-pyramidmodel,the fusion of multiple types of data with different resolutions is realized and a real three dimensional(3 D)model with an integrated expression of terrain and texture is constructed.In order to achieve the visualization of datamodels based on the massive terrain data in 3 Dscenes,a software named ItelliEarth is developed independently.Theresearch results show that the real 3 D model constructed by the proposed method can meet the requirements ofrelevant specifications,which provides an effective way to realize a large-scale 3 Dreal space model.