Research Article
Prefabricated Concrete Component Geometry Deviation Statistical Analysis
Table 2
Specification of 3D photogrammetric HL-3DP.
| HL-3DP 3D photogrammetric instrument | |
| Range measurement principle scanner control | Measurement of noncontact optical tricoordinate | Range | Up to 20 m (minimum range 0.01 m) | Field of view | 360°horizontal, 360°vertical | Signal image | 1.8 MB, 4Mpixels (1920 × 1920 pixel) | Ranging error | ±0.01 mm |
|
|