基于三维激光扫描的石窟寺病害可视化研究

Research on visualization of Cave Temple diseases based on 3D laser scanning

以石窟寺为典型代表的石质文物在我国文化遗产中占有非常重要的位置,由于这类文物的保护不仅与文物本身有关,而且与其赋存岩体、周边环境等均有着密切的关系,所以成为文物保护中问题最为复杂的一种类型.近十几年来,激光扫描、卫星遥感等新技术都出现在石窟寺保护加固工程中,为其数据采集的数字化和信息化发展提供了技术保障.三维激光扫描技术作为一种高精度立体扫描技术,是实现石窟寺数字化保护利用的有效手段.本研究通过使用三维激光扫描技术,以庆阳北石窟寺32号窟作为研究对象,采集其点云数据后,通过建模和使用点云和模型扫描软件ReCap对点云数据进行合理的运用,利用点云数据将石窟寺病害定量化,并将石窟内的病害进行标记和添加信息,探索石窟寺病害信息可视化管理的方法.

The stone cultural relics represented by cave temples occupy a very important position in China's cultural heritage.However,because the protection of such cultural relics is not only related to the cultural relics themselves,but also closely related to their rock mass and surrounding environment,which has become the most complex type of cultural relics protection.In recent ten years,new technologies such as laser scanning and satellite remote sensing have appeared in the protection and reinforcement project of grotto temple,which provides a technical guarantee for the digital and information development of its data acquisition.As a high-precision three-dimensional scanning technology,three-dimensional laser scanning technology is an effective means to realize the digital protection and utilization of grotto temples.By using three-dimensional laser scanning technology,this study takes cave 32 of Beishiku Temple as the research object.After collecting its point cloud data,it makes reasonable use of the point cloud data through modeling and using the point cloud and the model scanning software ReCap,quantifies the diseases of the cave temple by using the point cloud data,and marks and adds information to the diseases in the cave temple,Explore the method of visual management of disease information in grotto temple.