Kaunertal 1982

3D pointclouds and orthophotos derived from historical aerial images are important sources for quantifying landscape changes used by various resaerchers (e.g. Glaciologists,...源自历史航空影像的三维点云（3D pointcloud）与正射影像（orthophoto），是各类研究人员（例如冰川学家等）用于量化景观变化的重要数据源。