Accuracy and Level of Development
Understand that BIMIT accuracy mirrors the source point cloud, and how scan quality and alignment affect the result.
BIMIT's accuracy is directly tied to the quality of the point cloud it is built from. The model mirrors the source data: it can only be as accurate as the scan, and errors in the scan carry through to the output.
Accuracy depends on the point cloud
- Source device. Accuracy depends on the point cloud captured by the device used — for example the Matterport Pro2, the Leica BLK360, or another camera.
- Alignment. Proper point cloud alignment is critical. Any misalignment or discrepancy in the scan directly affects the model's accuracy.
- The model mirrors the scan. The BIM can be no more precise than the point cloud: inaccuracies in the scan are carried through.
Precision by setting
How closely the model follows the scan depends on the setting you order.
| Setting | Model-to-scan precision |
|---|---|
| BIMIT 100 | Approximate |
| BIMIT 200 | Approximate |
| BIMIT 300 | IPX Verified |
BIMIT 100 and BIMIT 200 are fully automated. Their models follow the scan approximately, and no fixed tolerance is promised for them.
BIMIT 300 is IPX Verified: an architect reviews and corrects the model against a unified QA/QC checklist before it is released to you, and the quality report records that review.
Getting the best results
For the best BIMIT output, use high-quality scanning equipment and follow capture best practices when generating the point cloud.
Related
For how this connects to the model's level of detail, see "What Level of Development (LOD) Does BIMIT Provide?"