Читать книгу Urban Remote Sensing - Группа авторов - Страница 53

LiDAR is an active remote sensor that sends out light pulses and records reflections of the pulses to measure distances. LiDAR is well known for its high geometric accuracy and its ability to penetrate forest canopies (Dalponte et al., 2009). Because LiDAR accuracy is highly influenced by the positional accuracy of the platform and UAS is usually unstable in flight and their GPS is inaccurate considering sensor resolution, it is hard to obtain accurate point clouds with UAS LiDAR without differential GPS stations. Without regard to cost, integration of RGB and LiDAR data can be promising to improve measurement and interpretation accuracy (Campos‐Taberner et al., 2016).