超大型石窟寺三维几何重建技术的研究

Very Large Cave Temples Three-dimensional Geometry Reconstruction Technology Research

石窟寺在历史变迁中遭受了风化、崩塌、溶蚀等,窟内壁画和高浮雕造像受到各种灾害的影响。为加强超大型石窟寺的保护和修复,需获取石窟寺完整、高精度的三维几何信息,为文物保护和修复提供真实、详尽的科学依据。本文以云冈石窟18窟为例,采用多种三维激光扫描仪对文物本体进行逐层交叉式扫描,以获取最全面、最完整、最准确的三维数据。该方法具有作业速度快,无须接触文物本体,数据成果可靠性高,数据信息完整等特点,是一种高效可行的文物三维几何数据采集方法。

Cave temples suffered weathering,collapse in the historical vicissitude,corrosion,etc.,grottoes murals and high relief sculpture is affected by the various disasters.To strengthen the protection and repair of large cave temples,shall obtain grottoes and full,high precision of 3 d geometry information,for the protection of cultural relics and fix true,detailed scientific basis.In this paper,18 holes of Yungang Grottoes as an example,using a variety of three-dimensional laser scanner on the cultural relics on-line cross-scan,in order to obtain the most comprehensive,most complete and accurate three-dimensional data.This method has a operation speed,no need contact ontology of cultural relics,high reliability data results,the characteristics of data integrity,is a kind of efficient and feasible method of three-dimensional geometry data collection of cultural relics.