Orthophoto Follo Rectified 2018

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. “Rectified aerial images” is usually a temporary product, which is used during the control of the map design. They are therefore of poorer quality than final orthophotos.
Rectified aerial images are replaced by final orthophotos when these are produced from the construction images.
Ground resolution ranges from 0.04 m – 0.20 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需求划分为多种适配标准。纠正航空影像（Rectified aerial images）通常属于临时产出物，多用于地图设计管控环节，因此其成像质量劣于最终版正射影像。当基于施工影像生成最终版正射影像时，纠正航空影像将被替代。该数据集的地面分辨率范围为0.04米至0.20米。