See pix4D accuracy statements - Accuracy is dependent on GSD, resolution of camera, and image overlap. JobSight does not support the use of GCP’s or RTK drones at this point.
We recommend standard IMU and GPS calibrations before flights or when traveling long distances.
Precision of measurements have a couple factors;
- Sensor Size: the physical size of the payload sensor attached to the drone (e.g. Sensor size of phantom 4 pro v2 is 1'' CMOS Effective pixels: 20M)
- Ground Sampling Distance: How close is the drone to the surface being mapped
- Overlap: what percentage of overlap is being used when capturing orthomosaic maps
- PPK or RTK: the use of GCPs or RTK drones to precisely scale the map to accurate proportions (NOT SUPPORTED)