Orthofoto Skiptvet 2015

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，可与参考坐标系关联。正射影像可依据不同应用场景划分为多种标准类型。“纠正航空影像（Rectified aerial images）”通常属于临时产出成果，多用于地图设计的管控环节，因此其成像质量劣于最终版正射影像。当通过施工影像生成最终版正射影像后，纠正航空影像便会被替代。该类影像的地面分辨率介于0.04米至0.20米之间。