多源遥感融合的虚拟城市空间构建与应用

Construction and application of virtual city space based on multi-source remote sensing fusion

本文基于倾斜、近景、激光雷达等多源遥感数据融合建模技术,开展高精度虚拟城市模型构建、模型结构优化等关键技术探索,总结分析了虚拟城市场景模型构建精细化程度不够、模型数据面片量大及数据存储组织与高性能可视化等问题。并利用虚拟现实(VR)及Microsoft HoloLens混合现实(MR)穿戴式设备,融合高精度虚拟城市空间模型,实现实景三维(3D)模型与虚拟现实设备对接与融合,在空间规划及历史文化展览等方面进行应用实践。

Based on multi-source remote sensing data fusion modeling technologies such as tilt,close range,LiDAR,etc.,this paper explored key technologies such as high-precision virtual city model construction,model structure optimization,and solved the problems such as insufficient refinement of virtual city scene model construction,large number of model data patches,data storage organization,and high-performance visualization.In addition,virtual reality(VR)and Microsoft HoloLens mixed reality(MR)wearable devices were applied to integrate high-precision virtual city space models,realize the docking and integration of real three-dimensional(3D)models and VR devices,and carried out application practice in space planning,historical and cultural exhibitions,etc.