Orthophoto 2008

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。正射影像可根据不同应用场景划分为多种适配标准。
Ortho 10型正射影像：
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建成区与开发区域，其地面分辨率通常为0.04~0.15米，定位精度可达±0.35米。