Orthophoto Trøndelag CIR 2022

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. Orthophoto “infrared” is footage where one of the color channels has been replaced by footage in the near-infrared area, and the images are particularly suitable for vegetation mapping. Ground resolution ranges from 0.1 m – 0.5 m. Accuracy ranges from ± 0.35 – 2 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绑定。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。红外型正射影像指将某一色彩通道替换为近红外波段影像的航拍素材，此类影像尤其适用于植被测绘工作。其地面分辨率覆盖0.1米至0.5米，定位精度范围为±0.35米至±2米。