Orthophoto Bjugn-Åfjord 1950

Orthophoto has the same geometric properties as a map and can be linked to a reference system. Orthophotos are divided into different orthophoto standards suitable for different purposes. Photo by Ortho: Covers areas that mainly consist of dense and scattered settlements and agricultural areas. Ground resolution is usually > 0.15 – 0.25 m. Accuracy ± 0.50 m.正射影像（Orthophoto）具备与地图一致的几何特性，且可关联至参考坐标系。 正射影像可依据不同应用场景划分为多种适配标准。 正射影像： 覆盖区域以密集分散的居民点与农业用地为主。 地面分辨率通常为0.15–0.25米，精度为±0.50米。