多源数据数字化技术在石窟寺保护工作中的应用

Application of multi-source data digital technology in the protection of grotto temples

石窟寺是我国辉煌灿烂的古代文明的集中体现,加强石窟寺的保护利用意义重大。本文以石泓寺石窟的数字化保护为例,提出利用倾斜航空摄影、近景摄影测量、三维激光扫描等技术获取多源数据,并综合多种技术的优势实现石窟寺三维数字化。首先,基于倾斜航空摄影进行石窟寺外部场景的三维数字化、1:500地形图生产、多角度影像和视频的制作;其次,基于三维激光扫描技术和近景摄影测量技术获取石窟寺内部空间结构以及高清的纹理信息,进行石窟寺内部三维模型、立面正射影像图和立面线描图制作。本文的技术方案实现了石窟寺内外场景的高质量数字化工作,也将为类似的石窟寺保护工作提供可行的解决方案和重要参考。

Grotto temples are concentrated embodiment of China's splendid ancient civilization,so it is of great significance to strengthen the protection and utilization of grotto temples.This paper takes the digital protection of the Shihongsi Grotto as an example,and proposes multi-sourced data acquisition by using oblique aerial photography,close-range photogrammetry,and 3D laser scanning technique to integrate the advantages of various techniques to 3D digitalize the grotto temple.Firstly,3D scene digitization,1:500 topographic map production,multi-angle image and video production have been carried out based on oblique aerial photography.Secondly,3D laser scanning technology and close range photography have been used to obtain the internal spatial structure and high-definition texture information of the grotto temple,and 3D internal models,facade orthophoto images and facade outline drawing of the grotto temple are produced.This paper realize the high-quality digital interior and exterior scenes of the grotto temple were realized,and will also provide a feasible solution and important reference for the protection of similar grotto temples.