# Geometry alignment report - `obj_lego_brick`

- Method: `mock-3dgs`
- Reconstruction: `/home/toaster/dev/uni/masterthesis/data/obj_lego_brick/mock_rec.ply`
- Alignment: `auto`
- Created: 2026-10-12T14:31:07

| Metric | Unaligned | Aligned |
| --- | --- | --- |
| Chamfer-L1 (m) | 0.024727 | 0.005734 |
| Chamfer-L2 (m) | 0.032371 | 0.006401 |
| Accuracy (m) | 0.028618 | 0.005273 |
| Completeness (m) | 0.020837 | 0.006195 |
| RMSE (m) | 0.032371 | 0.006401 |
| Hausdorff (m) | 0.133569 | 0.026404 |
| Precision | 0.031808 | 0.488997 |
| Recall | 0.026150 | 0.407700 |
| F-score | 0.028703 | 0.444663 |
| Normal consistency | - | - |
| Points (pred) | 14996 | 14996 |

## Per-threshold F-scores (aligned)

| Threshold | Precision | Recall | F-score |
| --- | --- | --- | --- |
| 1mm | 0.0075 | 0.0056 | 0.0064 |
| 5mm | 0.4890 | 0.4077 | 0.4447 |
| 10mm | 0.9691 | 0.8899 | 0.9278 |

## Alignment transform

- Scale recovered: `0.925556` (deviation from metric: 0.0744)
- Rotation angle undone: `2.596` deg
- Translation norm: `0.0463` m
- ICP iterations: `7`, final RMSE `0.007127` m

_The rotation angle is the magnitude of the alignment rotation the solver had to
apply; the reconstruction frame is arbitrary, so it is not an error against a
reference. For symmetric objects the transform is defined only up to the object's
symmetry group._