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Scanning issues and workarounds
Your device may not be able to scan or recognize some items or areas in your site effectively. Many scanning and recognition problems have workarounds.
Notes:
- Devices with LiDAR can recognize objects in the environment within a 30-foot radius.
- Devices without LiDAR can recognize objects within a 5- to 10-foot radius.
Problem areas for scanning
| Problem area | Workaround |
|---|---|
| Very bright lights or very dark shadows | Before scanning the environment, walk through the area and adjust the lighting. If you can’t change the lighting, avoid having bright lights or dark shadows within the recognition radius on screen. |
Mirrors or shiny metals Why is this a problem? | Avoid scanning mirrors or shiny metals. Avoid pointing the camera at these surfaces if they are within the recognition radius, especially while you are moving. |
| Highly waxed floors | You can add non-reflective objects, such as cardboard, cones or pieces of equipment, to a highly waxed floor. |
Visually complex, repetitive areas like patches of grass Why is this a problem? | Avoid pointing the camera at these areas, when aligning the model. Avoid using these areas for alignment. |
| Outdoor areas without overhead structures to block the sun | Set up something overhead to provide some shade (a tarp will do) or avoid using these areas for alignment. |
Clutter (Devices without LiDAR) Why is this problem? May produce holes in the scan mesh because the device cannot recognize the objects in the clutter. | If possible, remove the clutter. |
Inadequately scanned or empty areas can cause a model to drift out of alignment. For causes and workarounds, see Fix scan related model drift.