Correcting Point Cloud Scale in Drone Scans
Introduction
When working with drone scans, it's possible to encounter discrepancies in point cloud's scale. This article describes the steps how to correct the scale from feet to meters.
Problem Statement
The problem can arise when drone scans are imported into Cintoo, and they don't visualize correctly. This issue may be due to point cloud being in feet rather than meters, resulting in a discrepancy in the scale.
Symptoms
Objects appearing too large or too small within the visualized data
Misalignment of data due to incorrect scaling
Solution
Follow these steps to correct the scale of point cloud data.
1. Identify the problem and ensure that the issue is related to the scale by checking measurements within point cloud data.
On this screenshot the car is too big.
2. Open point cloud file in CloudCompare, and select point cloud file.
3. Click Edit > Multiply/Scale
4. Apply factor 0.3048 in all dimensions to scale the data from feet to meters.
5. Save point cloud as an e57 file, and upload scans to Cintoo following the steps Uploading Drone Data.
Conclusion
Correcting scale from feet to meters in point cloud data is essential for accurate representation and visualization in Cintoo. Following steps above will help ensure that drone scan data is presented correctly.
If any issues are encountered or any further assistance needed, don't hesitate to reach out to Support Team at support@cintoo.com.