Orthophoto Karlsøya 2001

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. Orthofoto N50 represents older images and is produced specifically for the Norwegian Mapping Authority. Orto N50 has ground resolution 1.0 m. Accuracy ± 10 m.正射影像（Orthophoto）与地图具备相同的几何特性，可与参考坐标系建立关联。正射影像可根据不同应用场景划分为多种适配标准。 Orthofoto N50 指代老旧影像数据集，专为挪威测绘局（Norwegian Mapping Authority）定制生产。 Orto N50 的地面分辨率为1.0米，精度为±10米。