Digital Orthophotos (DOP) — Special Flying June 2013, Los Southwest Saxony

Orthophotos are equal to the plane, georeferenced aerial images. The projection of the aerial images is carried out via a digital terrain model of the Earth’s surface.正射影像（Orthophoto）是具备地理参考属性的航空影像，其几何精度与平面地图一致。此类航空影像的投影校正过程依托地球表面的数字地形模型（Digital Terrain Model）完成。