St. Adalberd church 3D point model

Research data show the church of St. Adalbert in Gdansk, Poland. Two layers are presented in the .zip file: one represents the laser scanning result, the second represents the point cloud from 36 photogrammetry images from the UAV system. The aligned point clouds formed the basis to create the high-resolution 3D model. Reference data are laser scanning data and photogrammetric data form the basis for environment analysis modelling. Moreover, photogrammetry complements the modelling process for information on places that cannot be reached by terrestrial scanning technology. The standard deviation of point cloud alignment is not exceeding 2 cm, however noise filters should be taken into account during modelling and numerical calculations.
Coordinate system:  ETRF2000-PL / CS2000/18 - EPSG:2177
  Distance alignment results using Multi- Station Adjustment (MSA). Alignment results of a Tower (Blue- UAV Photogrammetry, Green- RED - Terrestrial Laser Scanning).

本研究数据集的研究对象为波兰格但斯克的圣阿达尔贝特教堂。该压缩包（.zip）内包含两类数据：其一为激光扫描结果，其二为无人机（Unmanned Aerial Vehicle, UAV）系统采集的36张摄影测量图像所生成的点云数据。经配准后的点云为高分辨率三维模型的构建提供了基础支撑。激光扫描数据与摄影测量数据作为参考数据集，为环境分析建模奠定了依据；此外，摄影测量可填补地面扫描技术无法抵达区域的信息空白，进一步完善建模流程。点云配准的标准差不超过2厘米，但在建模与数值计算过程中需考虑噪声滤波环节。
坐标系：ETRF2000-PL / CS2000/18 —— EPSG:2177
采用多站平差（Multi-Station Adjustment, MSA）得到距离配准结果。某塔体的配准结果标注如下：蓝色代表无人机摄影测量，绿色-红色代表地面激光扫描。