ABSTRACT
The development of multispectral terrestrial laser scanning (TLS) is still at the very beginning, with only four instruments worldwide providing simultaneous three-dimensional (3D) point cloud and spectral measurement. Research on multiwavelength laser returns has been carried out by more groups, but there are still only about ten research instruments published and no commercial availability. This chapter summarizes the experiences from all these studies to provide an overview of the state of the art and future developments needed to bring the multispectral TLS technology into the next level. Although the current number of applications is sparse, they already show that multispectral lidar technology has potential to disrupt many fields of science and industry due to its robustness and the level of detail available.
