TLS data-set used for determination of the saturation of chosen building materials

The data was captured using a time-of-flight Riegl VZ-400 scanner. The research programme was focused on scanning of commonly used building materials such as ordinary concrete, cellular concrete, red ceramic and silica in different states of saturation (oven dry specimens, specimens saturated by air humidity and fully saturated specimens). The specimens were scanned from different distances (7 m, 17 m and 27 m). The target specimens were oriented perpendicularly to the laser beam of TLS.
Data format:
Raw - Point cloud (*.pts format)
The file names are as follows:
xxm-yy-zz.pts - where “xx” stands for the distance in meters from TLS to scanned specimens (7, 17 and 27 m); “yy” stands for the type of building materials (ordinary concrete, cellular concrete, red ceramic and silica); “zz” stands for saturation state of specimens (oven dry, saturated by air humidity and fully saturated)

The structure of the files is as follows:
X Y Z Intensity (range from 0 to 1)
Where:
X, Y, Z are 3D coordinates of points, unit [m]
Intensity is a relation between emitted and received signal power by TLS (radiometric information of point cloud).

本数据集采用飞行时间（time-of-flight）Riegl VZ-400扫描仪采集。本研究项目聚焦于常见建筑材料的扫描，涵盖普通混凝土、加气混凝土、红陶瓷与二氧化硅，并制备了三种不同饱和状态的试样：烘干试样、空气湿度饱和试样及完全饱和试样。所有试样分别在7 m、17 m、27 m三个距离下完成扫描，且待测试样均与地面激光扫描（Terrestrial Laser Scanning, TLS）的激光束垂直定向。

数据格式：
原始数据为点云（point cloud），采用*.pts格式存储。

文件命名规则如下：
文件命名格式为xxm-yy-zz.pts，其中：
“xx”表示扫描仪至待测试样的扫描距离（单位：米，取值为7、17、27）；
“yy”表示建筑材料类型（涵盖普通混凝土、加气混凝土、红陶瓷与二氧化硅）；
“zz”表示试样的饱和状态（烘干、空气湿度饱和、完全饱和）。

文件内部结构如下：
X Y Z 强度值（取值范围为0至1）
各字段含义如下：
X、Y、Z为点云中点的三维坐标，单位为米（m）；
强度值为TLS系统发射信号与接收信号的功率比值，即点云的辐射强度信息。