Data collection
Not all scan data is of the same quality and varies based on the sensor used, the environment being scanned, collection methods, and the quality of the data processing. Prevu3D has the ability to mesh point clouds in many formats, however, it requires the proper collection procedures and registrations in order to deliver the highest quality product.
Collection Requirements
As Prevu3D offers a high resolution mesh solution, it is important to capture data properly with the right equipment for the best results. The following is the recommended requirements to properly capturing the environment data.
Exporting captured scans
Before uploading data, it is necessary to export the captured data depending on the capture device and software used.
The better the scanner and quality of the registration, the better the mesh quality and accuracy.
Depending on the supported capture device (listed below) used for scanning, the export settings will need to be curated to satisfy all requirements for the upload process.
To read more about a capture device's export process, please click on the device of interest below.
| Device | Data type | File format | Quality |
|---|---|---|---|
| Leica BLK360 | Point cloud | e57 | Medium quality |
| Leica RTC360, Leica P40, Leica P50, FARO S Series, Trimble X7, Z+F | Point cloud | e57 | High quality |
| NavVis VLX | Point cloud | e57 | Higher speed and coverage |
For the highest quality that Prevu3D has to offer, it is recommended to either use the Leica RTC360, or FARO S Series.
Scan completeness
To avoid an incomplete result and limit occlusion of the environment, it is necessary to scan an environment thoroughly to ensure the capturing of all details.
- As a general practice, scan setups should be spaced 3-5 meters (10 to 16 feet) apart.
- Additional scans around equipment, objects of importance, and in congested areas are recommended to ensure no missing details.
Scan lighting
Scan an environment with sufficient lighting and visibility to ensure detailed capturing.
- Proper lighting:
- Ensure there is quality lighting in the space you are scanning
- Dark areas will need to be lightened to correctly record the data
- Avoid overexposed lighting from windows or spotlights
- Color balancing of imagery
- HDR imagery preferred
Static environment
To avoid distorted errors within the captured data, it is recommended to scan the environment at a time where there is little to no movement nor operations being performed within the target view of interest
Recommendations:
- Scan during off-peak hours
- Eliminate / limit people and equipment moving in scans
- If completing multiple days of capture, try to capture complete areas on the same day to minimize potential movement of objects between days of capture
Read more about supported formats here.