实景三维技术在敦煌雅丹地貌数字化存档中的应用

Application of 3D Real Scene Technology in Digital Archiving of Dunhuang Yardang Landform

敦煌雅丹地貌因其珍贵和独特成为地质遗迹的典型代表,是一种稀有且无法再生的地质自然遗产。针对雅丹地貌的管理、保护与无具象化参考资料的问题,本文提出了一种融合多源数据进行多尺度实景三维建设的方法,在保证重建效率的同时,与传统倾斜摄影测量相比增强了模型细节。模型精度检测表明,本文所提实景三维建设方法能有效地记录敦煌雅丹地貌的几何构造和纹理细节,通过该技术对敦煌雅丹地貌进行数字化保存,可为今后修缮与重现提供重要依据。

Because of its rarity and uniqueness,Dunhuang Yardang landform has become a typical representative of geological relics,which is a rare and non renewable geological natural heritage.Aiming at the problems of Yardang landform management,protection and non representational reference materials,this paper proposes a method of multi-scale 3D real scene construction based on multi-source data,which not only ensures the reconstruction efficiency,but also enhances the model details compared with the traditional oblique photogrammetry.The model accuracy test shows that 3D real scene construction method proposed in this paper can effectively record the geometric structure and texture details of Dunhuang Yardang landform,and digitally archive the Yardang landform,providing the basis for its repair and reproduction.