三维激光扫描技术在建筑数字化中的研究OACSTPCD

To address the problems of low efficiency,heavy workload and one-sidedness of the traditional single-point measurement,this study proposes a building model reconstruction method based on 3D laser scanning technology.Firstly,a ground 3D scanning system is used to obtain the 3D building model,from which target feature points are extracted.Then,the RANSAC algorithm is combined with European clustering method to segment the building facade,meeting the requirements of building digitization.In this study,the building facade information can be accurately extracted by preprocessing the 3D data,and using semi-automatic filtering to denoise and plane fit-ting.The experimental results show that the proposed model produces less noise,has superior plane fitting performance,with an accu-racy of about 99％,which can achieve the purpose of fine building modeling.