Orthophoto Trofors 2002

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 10:
Normally covers urban areas and development areas where there is a need for good location accuracy and high resolution.
The ground solution is usually 0.04 – 0.15 m. Accuracy ± 0.35 m.

正射影像（Orthophoto）具有与地图一致的几何属性，且可与参考坐标系进行关联。正射影像可依据不同应用场景划分为多种适配的标准类型。
Ortho 10级正射影像：
该类影像通常覆盖对定位精度与高分辨率有较高要求的城市区域与开发用地，其地面采样值（ground solution）通常介于0.04米至0.15米之间，定位精度可达±0.35米。