Research Article
[Retracted] 3D Reconstruction and Intelligent Digital Conservation of Ancient Buildings Based on Laser Point Cloud Data
Table 1
Airborne LiDAR system parameter configuration.
| Performance parameter | ALS60 | ALTM Orion | LMS-Q560 |
| Wavelength (nm) | 1060 | 1060 | 1500 | Beam divergence (mrad) | 0.21 | 0.24 | 0.29 | Record the first and last echo (Y/N) | Y | Y | Y | Scanning method | Rotating polygon mirror | Rotating polygon mirror | Rotating polygon mirror | Pulse frequency (kHz) | 20–198 | 150 | 40–230 | Maximum scanning angle (deg) | 75 | 50 | 60 | Record intensity signal (Y/N) | Y | Y | Y |
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