三维激光扫描仪在古建筑数字化保护中的应用

The application 3D laser scanning technology in digital protection of ancient buildings

三维激光扫描仪相比较传统的对古建筑的测绘工作具有速度快、信息全、无接触、误差小等无法比拟的优点,近年来在古建筑修缮、重建中得到广泛应用。本文以郑氏宗祠数字化重建为实例,使用Trimble TX8激光扫描仪,基于Realworks、Sketchup软件,构件了郑氏宗祠三维模型,并尝试对斗拱精细构件进行重建,实现了古建筑三维数字化存档。并且本文对古建筑数字化保护的技术路线、外业数据采集、内业数据处理、数字三维模型重建相关技术进行了详细阐述和总结。

Compared with the traditional surveying and mapping work of ancient buildings,three-dimensional(3D)laser scanner has the advantages of fast speed,complete information,no contact and small error.In recent years,it has been widely used in the repair and reconstruction of ancient buildings.Taking the digital reconstruction of Zheng Ancestral Hall as an example,Trimble TX8 laser scanner was applied,based on Realworks and Sketchup software,to construct the threedimensional model of Zheng Ancestral hall,and tried to reconstruct the fine components of DouGong,realizing the threedimensional digital archival of ancient buildings.In this reasearch,the technical route of ancient architecture digital protection,field data collection,internal data processing,digital 3D model reconstruction related technologies were elaborated and summarized in detail.