1. What is high-precision mapping?
High-precision mapping is a core platform capability: inspection photos are precisely projected onto the corresponding positions of the 3D model for precise defect positioning, with projection accuracy reaching the pixel level and high alignment between texture details and the model.
2. How are texture changes observed?
Based on the mapping results, data collected at different times can be overlaid and compared to observe changes in crack length, width and texture trends, providing a basis for defect development assessment and maintenance decisions. The high alignment between imagery and the 3D model ensures comparison accuracy.
3. Applicable scenarios for high-precision mapping
| Scenario | Application |
|---|---|
| Precise defect positioning | Pixel-level mapping onto the 3D model |
| Multi-period change observation | Texture and defect progression comparison |
| Report evidence | Imagery restores the defect site |
4. Applicable conditions and scenarios
- Projects requiring precise defect positioning and imagery restoration
- Multi-period data comparison to observe texture and defect changes
- Applicable on the basis of 3D models (oblique photography / LiDAR / BIM)
5. Notes
Mapping accuracy depends on 3D model quality and image quality; it is recommended to ensure the modeling and collection phases follow professional processes.