Application of point cloud plan fitting to deformation monitoring using 3D laser scanner

On the analysis of application of 3D laser scanner to Deformation Monitoring,the paper put forward plan fitting as the method of point cloud data processing.Higher deformation monitoring accuracy could be made with this method and deformation of the whole building could be more conveniently analyzed.The author implemented data processing system based on AutoCAD.The system could be used in areas of buildings' deformation monitoring and quality checking of construction.