To Achieve Real Immersion: the 3D Virtual and Physical Reconstruction of Cave 3 and Cave 12 of Yungang Grottoes

Researchers successfully achieved the large-scale 3D virtual and physical reconstruction of two caves (Cave 3 and Cave 12) at the UNESCO World Heritage Site, Yungang Grottoes. This breakthrough addresses longstanding challenges in 3D printing for large objects by developing advanced techniques—cascade Structure-from-Motion (SfM), grouped Multi-View Stereopsis (MVS), and automatic texture mapping—to generate high-definition colored models suitable for fabrication. The team also optimized the 3D printing process, post-processing, installation, lacquering, and painting to produce two 10-meter replicas, which have been well-received by audiences. These innovations bridge the gap between digital visualization (e.g., games or VR) and physical replication, offering new possibilities for preserving and showcasing large-scale cultural heritage sites.

Diao, C., Li, Z., Zhang, Z., Ning, B., & He, Y. (2019). TO ACHIEVE REAL IMMERSION: THE 3D VIRTUAL AND PHYSICAL RECONSTRUCTION OF CAVE 3 AND CAVE 12 OF YUNGANG GROTTOES. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLII-2/W9, 297–303. https://doi.org/10.5194/isprs-archives-xlii-2-w9-297-2019