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Reconstruction results obtained by different SGSPs. “Precision” is the mean PRE of the 27 basic-unit-models. Figures in the last column show the error of 3D reconstruction; the x-axis is the serial number of units, and the y-axis is PRE (unit: m).
| SGSPs | Precision | Visualization of the 3D Reconstruction | Error of 3D Reconstruction |
|---|---|---|---|
| SGSP1 | 3.1 (m) |  |
 |
| SGSP2 | 2.1 (m) |  |
 |
| SGSP3 | 1.0 (m) |  |
 |
