3D laser scanners are powerful tools that use LiDAR technology to capture detailed 3D observations of the environment. This data can be used for a variety of applications, including automatic data classification, feature extraction, and modeling. The use of laser scanning is versatile, with applications in urban, forest, and rural areas, and can be performed from the air or on the ground. The data obtained from laser scanning is crucial for various mapping and modeling systems, including digital twin construction, geographic information systems, and building information modeling.