中文摘要：

以某大型仿古建筑物为例,研究了点云数据的采集、配准、去噪、三维建模和纹理映射,分别采用Geomagic、Auto CAD和3DMAX三种方法构建了建筑物的三维精细模型。重点探讨了基于点云数据进行古建筑精细建模的过程和方法,并以全站仪精测数据为参考,对各模型相同部位进行对比,分析了几种建模方法的精度和效果,为实际建模方案的选择提供了可靠的理论和策略支持。

英文摘要：

In this paper,an example of a large antique building was used to study the point cloud data collection,registration,de-noising,3D modeling and texture mapping,respectively using the Geomagic,Auto CAD and 3DMAX methods for constructing fine three-dimensional building models. the processes and methods for fine ancient architecture modeling were mainly discussed based on point clouds by means of comparing the same parts on three models. Taking the precise total station data as reference,the accuracy and effectiveness of different methods were analyzed,It will provide a reliable theoretical and strategic support for the program selection in actual modeling.