说明：  地面激光扫描（TLS，也称为地基光探测和测距，激光雷达），能高精度，详细的3D模型，测量自然的环境提供有效的数据采集方法。然而，尽管高密度和质量，数据本身的，所获得的数据中含有所需的进一步建模和分析没有直接情报 - 仅3D几何图形（XYZ），3分量颜色（RGB），而激光返回的信号强度（I）中的每个点。
(Terrestrial laser scanning (TLS, also called ground based Light Detection and Ranging, LIDAR) is an effective data acquisition method capable of high precision, detailed 3D models for surveying natural environments. However, despite the high density, and quality, of the data itself, the data acquired contains no direct intelligence necessary for further modeling and analysis- merely the 3D geometry (XYZ), 3-component color (RGB), and laser return signal strength (I) for each point.)