Orthophoto Hemne 2010

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，可与参考坐标系关联。 正射影像可根据不同应用需求划分为多种适配的标准类型。 正射拍摄影像： 该类影像覆盖区域以密集分散的居民点与农业用地为主，地面分辨率通常处于0.15~0.25米区间（大于0.15米），定位精度为±0.50米。