Fig. 1. Banteay Srei. (a) Top panoramic view; (b) main collection area of data

Fig. 2. Target area and field establishment

Fig. 3. Flow chart of data processing

Fig. 4. Schematic of registration principle

Fig. 5. Registration results. (a) Ground point cloud; (b) visual point cloud; (c) visual point cloud after registration

Fig. 6. Result of cloud to cloud distance

Fig. 7. Point cloud registration results. (a) TLS point cloud; (b) visual point cloud after extraction; (c) overall point cloud after registration and fusion

Fig. 8. Point cloud before and after denoising. (a) Point cloud before denoising; (b) point cloud after denoising

Fig. 9. Point cloud before and after resample. (a) Point cloud before resample; (b) point cloud after resample

Fig. 10. Projection diagram of neighborhood point set

Fig. 11. Location diagram of P'₀. (a) P'₀ inside; (b) P'₀ at edge

Fig. 12. Principle of triangulation

Fig. 13. Local effect of point cloud encapsulation. (a) Before point cloud packaging; (b) after point cloud packaging

Fig. 14. Model diagram before and after repair. (a) Plane hole; (b) tangent hole; (c) curved hole

Fig. 15. Horizontal vertical section view of main building of Banteay Srei (unit: m). (a) Plan view; (b) elevation view; (c) section view

Fig. 16. Rendering diagram of Banteay Srei. (a) Overall; (b) detail 1; (c) detail 2